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Determination method of potassium content

Determination method of potassium content, Total:497 items.

In the international standard classification, Determination method of potassium content involves: Fertilizers, Metalliferous minerals, Water quality, Non-ferrous metals, Products of the chemical industry, Ferroalloys, Animal feeding stuffs, Soil quality. Pedology, Inorganic chemicals, Iron and steel products, Milk and milk products, Non-metalliferous minerals, Testing of metals, Edible oils and fats. Oilseeds, Farming and forestry, Chipless working equipment, Refractories, Fuels, Wastes, Natural gas, Raw materials for rubber and plastics, Beverages, Analytical chemistry, Processes in the food industry, Jewellery, Welding, brazing and soldering, CHEMICAL TECHNOLOGY, Electrical accessories, Nuclear energy engineering, Paper and board, Coals, Ferrous metals, Fruits. Vegetables, Waxes, bituminous materials and other petroleum products, Construction materials, Spices and condiments. Food additives, Plastics, Textile fibres, Organic chemicals, Extraction and processing of petroleum and natural gas, Sugar. Sugar products. Starch, Semiconducting materials.

RU-GOST R, Determination method of potassium content

GOST 30181.4-1994 Mineral fertilizers. Method for determination of total mass fraction of nitrogen in compound fertilizers and nitrale fertilizers in ammonium and nitrate forms (Deward Method)
GOST R 50242-1992 Mineral fertilizers. Methods for determination of pottassium content
GOST 20851.3-1993 Mineral fertilizers. Methods for determination of pottassium content
GOST 2082.9-1981 Molibdenum concentrates. Method for determination of sodium and potassium contents
GOST 26880.2-1986 Lead. Methods of sodium and potassium determination
GOST 20851.3-1975 Mineral fertilizers. Methods for determination of potassium content
GOST 851.8-1993 Primary magnesium. Spectral method for determination of sodium and potassium
GOST 8061-1972 Black powders. Methods for determination of potassium nitrate content determination methods
GOST 851.8-1987 Primary magnesium. Method for the determination of sodium and potassium
GOST 26261-1984 Soils. Methods for determining total phosphorus and total potassium
GOST 14839.7-1969 Industrial explosives. Method for determination of sodium (potassium) nitrate content
GOST EN 15477-2013 Fertilizers. Determination of the water-soluble potassium content
GOST 3594.3-1993 Moulding refractory clays. Method for the determination of exchange cations content of sodium and patassium
GOST R 55112-2012 Solid biofuels. Determination of the water soluble chloride, sodium and potassium content
GOST 11739.8-1990 Aluminium casting and wrought alloys. Method for determination of potassium
GOST 10857-1964 Oil seeds. Methods of determination of oil content
GOST 22974.10-1996 Melted welding fluxes. Methods of sodium and potassium oxides determination
GOST 19609.5-1989 Concentrated kaolin. Method for determination of potassium and sodium oxides
GOST 22974.10-1985 Melted welding fluxes. Methods of sodium and potassium oxides determination
GOST 7824-1980 Vegetable oils. Methods for determination of phosphorated substances content
GOST 18165-2014 Water. Methods for determination of aluminum content
GOST 7619.6-1981 Fluorite. Method for the determination of iron content
GOST 26318.7-1984 Non-metallic ore materials. Method for determination of potassium oxide and sodium oxide mass fractions
GOST R 53887-2010 Water. Methods for the determination of cations (ammonium, barium, potassium, calcium, lithium, magnesium, sodium, strontium) content using capillary electrophoresis
GOST 1953.4-1979 Tin bronze. Methods for the determination of phosphorus
GOST 1953.10-1979 Tin bronze. Methods for the determination of stibium
GOST 1953.16-1979 Tin bronze. Method for the determination of titanium
GOST R 55227-2012 Water. Methods for determination of formaldehyde content
GOST 7619.9-1981 Fluorite. Method for the determination of phosphorus content
GOST 13020.1-1985 Metallic chrome. Method for determination of chrome
GOST 13020.4-1985 Metallic chrome. Method for determination of phosphorus
GOST 11736-1978 Plastics. Method for determination of water content
GOST 13151.11-1977 Ferromolybdenum. Method for the determination of arsenic content
GOST 14858.3-1981 Silicocalcium. Method for the determination of phosphorus content
GOST R 55802-2013 Starch. Metohods of determination of moisture content

HU-MSZT, Determination method of potassium content

Japanese Industrial Standards Committee (JISC), Determination method of potassium content

JIS M 8208:1995 Iron ores -- Method for determination of potassium content
JIS K 0400-49-20:1998 Water quality -- Determination of sodium and potassium -- Part 2: Determination of potassium by atomic absorption spectrometry
JIS K 0400-48-10:1998 Water quality -- Determination of sodium and potassium -- Part 3: Determination of sodium and potassium by flame emission spectrometry
JIS G 1229:1994 Steel -- Methods for determination of lead content
JIS G 1233:1994 Steel -- Method for determination of selenium content
JIS M 8264:2022 Chromium ores -- Methods for determination of silicon content
JIS M 8121:2022 Ores -- Methods for determination of copper
JIS M 8263:1994 Chromium ores -- Method for determination of iron content
JIS M 8264:1993 Chromium ores -- Determination of silicon content
JIS M 8266:1994 Chromium ores -- Method for determination of aluminium content
JIS M 8217:1994 Iron ores -- Methods for determination of sulfur content
JIS M 8230:1994 Iron ores -- Methods for determination of bismuth content
JIS M 8262:1993 Chromium ores -- Determination of chromium content
JIS M 8220:1995 Iron ores -- Methods for determination of aluminium content
JIS M 8237:1995 Manganese ores -- Methods for determination of sulphur content
JIS M 8239:1995 Manganese ores -- Methods for determination of aluminium content
JIS M 8219:1995 Iron ores -- Methods for determination of titanium content
JIS M 8240:1995 Manganese ores -- Methods for determination of calcium content
JIS M 8242:1995 Manganese ores -- Method for determination of copper content
JIS M 8321:1999 Titanium ores -- Methods for determination of niobium
JIS M 8235:2004 Manganese ores -- Determination of silicon content
JIS M 8234:2004 Manganese ores -- Methods for determination of iron content
JIS M 8239:2015 Manganese ores -- Methods for determination of aluminium
JIS M 8240:2015 Manganese ores -- Methods for determination of calcium
JIS M 8234:2016 Manganese ores -- Methods for determination of iron content
JIS M 8237:2016 Manganese ores -- Methods for determination of sulphur content
JIS M 8242:2018 Manganese ores -- Method for determination of copper content
JIS H 0608:1978 Estimation of boron content in silicon
JIS H 1651:1971 Methods for determination of chlorine in zirconium
JIS H 1681:1976 Methods for determination of carbon in tantalum
JIS H 1685:1976 Methods for determination of nitrogen in tantalum
JIS H 1695:1976 Methods for determination of oxygen in tantalum
JIS H 1696:1976 Method for determination of hydrogen in tantalum
JIS H 1697:1976 Method for determination of molybdenum in tantalum
JIS H 1698:1976 Method for determination of fluorine in tantalum
JIS H 1067:1994 Methods for determination of oxygen in copper
JIS H 1615:1997 Method for determination of chlorine in titanium
JIS H 1696:2000 Method for determination of hydrogen in tantalum
JIS H 1067:2002 Methods for determination of oxygen in copper
JIS M 8216:1994 Iron ores -- Method for determination of phosphorus content
JIS M 8214:1995 Iron ores -- Methods for determination of silicon content
JIS M 8215:1995 Iron ores -- Methods for determination of manganese content
JIS M 8207:1995 Iron ores -- Method for determination of sodium content
JIS M 8210:1995 Iron ores -- Methods for determination of cobalt content
JIS M 8127:1994 Ores -- Methods for determination of tin
JIS M 8126:1994 Ores -- Methods for determination of nickel
JIS M 8123:1994 Ores -- Methods for determination of lead
JIS M 8122:1994 Ores -- Methods for determination of sulfur

CZ-CSN, Determination method of potassium content

CSN 65 4816-1982 Minoral Frrtih/ci^. Mothods o( IJotoriiiinutioii of Potassium Contont
CSN 65 4816 Z1-1995 Minerál Fertilizers. Methods of Determination of Potassium Content
CSN 65 2101-1985 Potassium hydroxide technical. Determination of potassium hydroxide content. Total alkalinity and potassium carbonate content. Titrimetrical method
CSN 65 2481-1981 Sodium Chloride (Salt) Methods of Potassium Ferricyanide Content Determination
CSN 46 7092-14-1998 Testing methods for feeding stuffs - Part 14: Determination of potassium content
CSN 65 2471-1981 Sodium Chloride (Salt) Methods of Potasium Jodide Content Determination
CSN 65 2104-1986 Potassium hydroxide for industrial use. Determination of chloride content. Nephelometric method
CSN 65 2102-1985 Potassium hydroxide technical Photocolorimetric method for determination of iron content
CSN 65 2467-1981 Sodíum Chloride (Salt) Method of Potassium Content Determination by Atomic
CSN 68 4150-1987 Detennination of content of substances cducing potassium permenganate
CSN ISO 3698:1993 Potassium hydroxide for industrial use. Determination of calcium and magnesium contents. Flame atomic absorption method
CSN 65 2105-1986 Potassium hydroxide for industrial use. Determination of sulphate content. Nephelometric method
CSN 65 2106-1986 Potassium hydroxide for industrial use. Determination of heavy metals content. Hydrogen sulphide method
CSN 65 2103-1985 Potassium hydroxide technical Complexometric deterraination of the sum of calcium and magnesium contents
CSN 65 4813-1988 Fertilizers. Methods for the determination of water content.

Korean Agency for Technology and Standards (KATS), Determination method of potassium content

KS M ISO 5310:2012 Fertilizers－Determination of potassium content－Titrimetric method
KS M ISO 5310-2006(2011) Fertilizers－Determination of potassium content－Titrimetric method
KS M ISO 5318:2012 Fertilizers－Determination of potassium content－Potassium tetraphenylborate gravimetric method(reference method)
KS M ISO 5318:2007 Fertilizers－Determination of potassium content－Potassium tetraphenylborate gravimetric method(reference method)
KS D ISO 7528:2012 Nickel alloys-Determination of iron content-Titrimetric method with potassium dichromate
KS H 1201-2012 Testing method for moisture contents
KS H 1202-2012 Testing method for total ash
KS H 1203-2012 Testing method for crude lipids content
KS H 1203-2001 Testing method for crude lipids content
KS E ISO 13312:2022 Iron ores — Determination of potassium content — Flame atomic absorption spectrometric method
KS D 2528-2009 Methods for determination of magnesium in titanium
KS D 2529-2011 Methods for determination of carbon in titanium and titanium alloys
KS D 2531-2009 Method for determination of chlorine in titanium
KS D 2533-2009 Determination of oxygen in titanium and its alloy
KS D 2535-2004 Methods for determination of palladium in titanium alloys
KS D 2536-2009 Methods for determination of aluminium in titanium alloys
KS D 2553-2010 Tantalum-Method for atomic absorption spectrometric analysis
KS D 1969-2007 Method for determination of oxygen in copper
KS D 2527-2003 Method for determination of iron in titanium
KS D 2552-2005 Method for determination of silicon in tantalum
KS D 2555-2005 Methods for determination of nitrogen in tantalum
KS D 2560-2005 Determination of hydrogen in tantalum
KS D 2532-2007 Methods for determination of hydrogen in titanium and titanium alloys
KS D 2530-2007 Methods for determination of nitrogen in titanium and titanium alloys
KS D 2526-2012 Methods for determination of manganese in titanium and titanium alloys
KS D 2525-2011 Methods for determination of silicon in titanium and titanium alloys
KS D 2534-2009 Methods for determination of sodium in titanium
KS D 2070-2019 Ferrophosphorus — Methods for determination of phosphorus content
KS D 1822-2022 Steel — Methods for determination of lead content
KS D 1828-2019 Steel — Methods for determination of selenium content
KS D ISO 11427:2006 Determination of silver in silver jewellery alloys－Volumetric (potentiometric) method using potassium bromide
KS F 2490-2006 Standard test method for asphalt content of hot-mix asphalt by ignition method
KS D 0064-2001 Method of measurement for hydrogen evolved from steel welds
KS F 2515-2002 Testing method of chloride content in aggregate
KS D 1688-2004 Methods for determination of cadmium in copper
KS H 1204-2012 Testing method for crude proteins content
KS E 3711-1996 Hardcoa1-Determination of moisture-holdingcapacity
KS D 1991-2007 Method for determination of selenium in copper
KS D 1828-2009 Method for determination of selenium in steel
KS D 1827-2009 Methods for determination of zirconium in steel
KS D 1829-2008 Methods for determination of tellurium in steel

Professional Standard - Agriculture, Determination method of potassium content

230药典三部-2020 Content determination method 3109 Potassium ion determination method
203药典四部-2015 3100 content determination method 3109 potassium ion determination method
191药典四部-2020 3100 content determination method 3109 potassium ion determination method
SN/T 5495-2023 Determination of Iron Content in Iron Dust Slime Potassium Dichromate Titration Method
NY/T 2540-2014 Fertilizers.Determination of potassium content
211药典三部-2015 Content determination method 3109 Potassium ion determination method 56
NY/T 889-2004 Determination of exchangeable potassium and non-exchangeable potassium content in soil
GB 8574-1988 Determination of Potassium Content in Compound Fertilizer Gravimetric Method of Potassium Tetraphenylborate
NY/T 2420-2013 Determination of total potassium in plant.Flame photometry method
247药典三部-2020 Assay method 3126 IgG assay method
NY/T 2273-2012 Soil amendment.Determination of phosphorus and potassium content
220药典四部-2015 3100 assay method 3126 IgG assay method
208药典四部-2020 3100 assay method 3126 IgG assay method
NY/T 1977-2010 Water-suluble fertilizers-Determination of total nitrogen, phosphorus and potassium content
220药典三部-2020 Content Determination Method 0731 Protein Content Determination Method
228药典三部-2015 Assay method 3126 General rules of IgG assay method 63
239药典三部-2020 Content determination method 3118 adipic hydrazide content determination method
212药典四部-2015 3100 content determination method 3118 adipic hydrazide content determination method
200药典四部-2020 3100 content determination method 3118 adipic hydrazide content determination method
201药典三部-2015 Content Determination Method 0731 General Principles of Protein Content Determination Method 50
240药典三部-2020 Assay method 3119 polymer conjugate assay method
NY/T 79-1988 Method for the determination of fat percentage of wool

Association Francaise de Normalisation, Determination method of potassium content

NF U42-111:2013 Potash fertilizers - Determination of potassium content - Flame photometric method
NF U42-111:1960 Potash fertilizers. Determination of potassium content by flame photometry.
NF V04-209:1989 Milk. Determination of potassium dichromate content. Reference method.
NF T20-356:1978 Potassium chloride for industrial or agricultural use. Determination of potassium content.potassium tetraphenylborate gravimetric method.
NF T20-366:1978 Potassium sulphate for industrial or agricultural use. Determination of potassium content.gravimetric method as potassium tetraphenylborate.
NF T20-376:1969 Chemical analysis of potassium hydroxide. Gravimetric determination of potassium.
NF T20-379:1969 Chemical analysis of potassium hydroxide. Volumetric determination of potassium.
NF U42-143*NF EN 15477:2009 Fertilizers - Determination of the water-soluble potassium content.
NF EN 15477:2009 Engrais - Détermination de la teneur en potassium soluble dans l'eau
NF T20-372:1969 Chemical analysis of potassium hydroxide. Determination of potassium (flame photometry method).
NF T20-354:1978 Potassium chloride for industrial use. Determination of chloride content.mercurimetric method.
NF T20-365:1978 Potassium sulphate for industrial use. Determination of chloride content.mercurimetric method.
NF T20-359:1978 Potassium chloride for industrial or agricultural use. Determination of potassium content.sodium tetraphenylborate titrimetric method.
NF V04-355:1986 Dried milk. Determination of sodium and potassium contents. Flame emission spectrometric method.
NF T20-381:1977 Potassium hydroxide for industrial use. Determination of carbonates content. Gas-volumetric method.
NF T90-019:1984 Testing water - Determination of sodium and potassium - Flame emission spectrometry method
NF T90-020:1984 Testing water - Determination of sodium and potassium - Atomic absorption spectrometry method.
NF T20-367:1978 Potassium sulphate for industrial or agricultural use. Determination of potassium content.sodium tetraphenylborate volumetric method.
NF T20-378:1977 Potassium hydroxide for industrial use. Determination of carbon dioxide content. Titrimetric method.
NF T20-352:1978 Potassium chloride for industrial or agricultural use. Determination of potassium content.flame emission spectrophotometric method.
NF T20-362:1978 Potassium sulphate for industrial or agricultural use. Determination of potassium content.flame emission spectrophotometric method.
NF T20-374:1977 Potassium hydroxide for industrial use. Determination of chlorides content. Mercurimetric method.
NF T20-387:1977 Potassium hydroxide for industrial use. Determination of sulphur compounds. Method by reduction and titrimetry.
NF T20-364:1978 Potassium sulphate for industrial use. Determination of sulphate content.baryum sulphate gravimetric method.
NF V04-392-1*NF EN ISO 3727-1:2002 Butter - Determination of moisture, non-fat solids and fat contents - Part 1 : determination of moisture content (reference method).

Indonesia Standards, Determination method of potassium content

SNI 03-4152-1996 Test methods for potassium in light sediment by hydrogen chloride using atomic absorption spectrophotometer apparatus
SNI 01-3201-1992 Oil and fats, Determination of iodyde number (Wijs methode)

RO-ASRO, Determination method of potassium content

STAS SR 8934-9-1997 Sodium chloride. Determination of potasium iodate content. Volumetric method
STAS 12996-1991 Fodders potassium content determination
STAS 11592-1983 WATER 40 Potassium content determination
STAS 3223/1-1980 ORINKING WATER Potassiiim determination
STAS 6182/30-1974 WINE Determination of potassium
STAS SR ISO 9389:1995 Nickel alloys. Determination of cobalt.content. Potentiometric titration method with potassium hexacyanoferrate (III)
STAS SR 8934-28-1997 Sodium chloride - Determination of potasium iodide content - lodometric method
STAS SR 8934-8-1996 Sodium chloride. Determination of potassium. Flame Photometric Method
STAS SR 13363-1996 Sodium chloride. Determination of potassium. Sodium Tetraphenylborate Volumetric Method
STAS 10115-1984 MILK AND MILK PRODUCTS Determination of 40 potassium content
STAS SR 13364-1996 Sodium chloride. Determination of potassium. Flame Atomic Absorption Spectrometric Method
STAS 12311-1985 Agroalimentary products FLOUR Determination of potassium 40 content
STAS 8295-1969
STAS 12703/9-1989 ZIBCONIA Sodium oxide and potassium oxide content determination
STAS 318/9-1988 SPECIAL GLASS Sodium oxide "and potassium oxide content determination
STAS 4242/7-1988 BLAST FURNACE SLAG Determination of sodium oxide and potassium oxide
STAS 9218/10-1973 ZIRGONIUM SILIGATE Determination of sodium oxide and polasiup oxide contents

International Organization for Standardization (ISO), Determination method of potassium content

ISO 5310:1986 Fertilizers; Determination of potassium content; Titrimetric method
ISO 2051:1976 Potassium chloride for industrial use; Determination of potassium content; Potassium tetraphenylborate gravimetric method
ISO 2485:1973 Potassium sulphate for industrial use; Determination of potassium content; Gravimetric method as potassium tetraphenylborate
ISO 2486:1973 Potassium sulphate for industrial use — Determination of potassium content — Sodium tetraphenylborate volumetric method
ISO 2053:1976 Potassium chloride for industrial use; Determination of moisture content; Gravimetric method
ISO 5318:1983 Fertilizers; Determination of potassium content; Potassium tetraphenylborate gravimetric method (Reference method)
ISO 2052:1976 Potassium chloride for industrial use; Determination of potassium content; Sodium tetraphenylborate titrimetric method
ISO 7528:1989 Nickel alloys; determination of iron content; titrimetric method with potassium dichromate
ISO 2488:1973 Potassium sulphate for industrial use; Determination of chloride content; Mercurimetric method
ISO 2050:1976 Potassium chloride for industrial use; Determination of potassium content; Flame emission spectrophotometric method
ISO 2484:1973 Potassium sulphate for industrial use; Determination of potassium content; Flame emission spectrophotometric method
ISO 8070:1987 Dried milk; Determination of sodium and potassium contents; Flame emission spectrometric method
ISO 992:1975 Potassium hydroxide for industrial use; Determination of chlorides content; Mercurimetric method
ISO 17319:2015 Fertilizers and soil conditioners - Determination of water-soluble potassium content - Potassium tetraphenylborate gravimetric method
ISO 991:1976 Potassium hydroxide for industrial use — Determination of carbonates content — Gas-volumetric method
ISO 2900:1973 Potassium hydroxide for industrial use; Determination of carbon dioxide content; Titrimetric method
ISO 993:1976 Potassium hydroxide for industrial use — Determination of sulphate content — Barium sulphate gravimetric method
ISO 2487:1973 Potassium sulphate for industrial use; Determination of sulphate content; Barium sulphate gravimetric method
ISO 11427:1993 Determination of silver in silver jewellery alloys; volumetric (potentiometric) method using potassium bromide
ISO 1655:1975 Raw rubber and rubber latex — Determination of manganese content — Potassium periodate photometric method
ISO 9389:1989 Nickel alloys; determination of cobalt content; potentiometric titration method with potassium hexacyanoferrate(III)
ISO 1994:1976 Hard coal; Determination of oxygen content

NL-NEN, Determination method of potassium content

NEN 6442-1979 Water - Flame photometric determination of sodium and potassium content
NEN 2741-1982 Fruit juices - Determination of potassium content - Flame photometric method
NEN 2841-1982 Fruit juices - Determination of potassium content - Flame photometric method
NEN 6424-1988 Water - Determination of potassium content by atomic absorption spectrometry (flame technique)
NEN 6399-1992 Fruit lemonades - Determination of potassium content - Flame photometric method
NEN 3771-1979 Cheese - Physical and chemical test methods - Determination of the sodium and the potassium content by flame photometry

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China, Determination method of potassium content

GB/T 32786-2016 Pig iron contenting nickel.Determination of iron content.Dichromate titration method
GB/T 8574-2002 Determination of potassium content for compound fertilizers potassium tetraphenylborate gravimetric method
GB/T 8574-2010 Determination of potassium content for compound fertilizers.Potassium tetraphenylborate gravimetric method
GB/T 223.7-2002 Iron powder--Determination of iron content--Potassium dichromate titration method
GB/T 13748.17-2005 Chemical analysis methods of magnesium and magnesium alloys.Determination of kalium content and natrium content.Flame atomic absorption spectrophotometric method
GB/T 6730.8-2016 Iron ores.Determination of iron (Ⅱ) content.Potassium dichromate titrimetric method
GB/T 22661.3-2008 Chemical analysis methods of potassium fluoborate.Part3:Determination of potassium fluoborate content.Sodium hydroxide titration volumetric method
GB/T 8296-1987 Natural rubber latex--Determination of manganese content--Potassium periodate photometric method
GB/T 1507-2006 Manganese Ores. Determination of active oxygen content. Potassium dichromate titrimetric method
GB/T 22662.3-2008 Chemical analysis methods of potassium fluotitanate.Part 3:Determination of potassium fluotitanate content.Ammonium iron sulphate dodecahydrate titration volumetric method
GB/T 17767.3-2010 Determination of organic-inorganic compound fertilizers-Part3 :Total potassium content
GB/T 17832-2008 Silver jewellery alloys.Determination of silver.Volumetic (potentionmetric) method using potassium bromide
GB/T 22662.2-2008 Chemical analysis methods of potassium fluotitanate.Part2:Determination of moisture content.Gravimetric method
GB/T 22661.2-2008 Chemical analysis methods of potassium fluoborate.Part2:Determination of moisture content.Gravimetric method
GB/T 6609.6-2004 Chemical analysis methods and determination of physical performance of alumina Determination of potassium oxide content-Flame photometric method
GB/T 17832-1999 Determination of silver in silver jewellery alloys--Volumetric (potentiometric) method using potassium bromide
GB/T 12658-1990 Paper, board and pulp--Determination of potassium and sodium content
GB/T 22662.8-2008 Chemical analysis methods of potassium fluotitanate.Part8:Determination of chloride content.Mercury nitration volumetric method
GB/T 22661.9-2008 Chemical analysis methods of potassium fluoborate.Part9:Determination of chloride content.Mercury nitration volumetric method
GB/T 6730.21-2016 Iron ores.Determination of manganse content.Potassium periodate spectrophotometric method
GB/T 6730.49-2017 Iron ores.Determination of potassium content.Flame atomic absorption spectrometric method
GB/T 19559-2008 Method of determining coalbed gas content
GB/T 19559-2004 Method of determining coalbed methane content
GB/T 6609.6-2018 Chemical analysis methods and determination of physical performance of alumina.Part 6:Determination of potassium oxide content
GB/T 19421.10-2003 Test methods of crystalline layered sodium disilicate--Potassium fluosilicate volumetric methods for determination of silica dioxide content
GB/T 15402-1994 Fruits,vegetables and derivd products--Determination of sodium and potassium
GB/T 6730.65-2009 Iron ores.Determination of total iron content.Titanium(Ⅲ)chloride reduction potassium dichromate titration methods(routine methods)
GB/T 10304.2-1988 Determination of BaC03 in cathode carbonate by dichromate iodimetry
GB/T 17527-1998 Determination method of pepper essential oils content
GB/T 12006.2-1989 Polyamides--Determination of water content
GB 3999.1-1983 Method for the determination of anthracene content of crude anthracene
GB/T 24207-2009 Determination of the phenol content of washing oil
GB/T 24208-2009 Determination of the naphthalene content of washing oil

YU-JUS, Determination method of potassium content

JUS H.G8.428-1990 Reagents. Potassium iodide. Determination of potassium iodide content. Volumetric method
JUS H.G8.098-1984 Reagents. Potassium chloride. Determination of potassium chloride content. Volumetric method
JUS H.G8.452-1991 Reagents. Potassium sulpbate. Determination of potassium sulphate content. Volumetric method
JUS H.G8.455-1991 Reagents. Potassium sulphate. Determination od chloride content. Turbidim&tric metbod
JUS H.G8.107-1984 Reagents. Potassium chloride. Determination of aluminium content. Colorimetric method
JUS H.G8.106-1984 Reagents. Potassium chloride. Determination of iron content. Colorimetric method
JUS H.G8.436-1990 Reagents. Potassium iodide. Determination of iron content. Colorimetric method
JUS H.G8.485-1991 Reagents. Potassium perraangar.ate. Determination of potassium permanganate content. Volumetric method
JUS H.G8.457-1991 Reagents. Potassium sulpbate. Determination of total nltrogen content. Colorlmetrlc metho?
JUS H.G8.108-1984 Reagents. Potassium chloride. Determination of barium content. Turbidimetric rnethod
JUS H.G8.435-1990 Reaqents. Potassium iodide. Determination of total nitroaen content. Colorimetric method
JUS H.G8.432-1990 Reaaents. Potassium iodide. Determination of sulphate content. Turbidinetric method
JUS H.G8.429-1990 Reagents. Potassium iodide. Determination of substances insoluble in water. Gravimetric method
JUS H.G8.104-1984 Reagents. Potassium chloride. Determination of total nitrogen content. Colorimetric method
JUS H.G8.515-1991 Reagents. Potassium hydroxide. Determination of aluminium content. Colorimetric method
JUS H.P8.034-1992 Potassium metabisulphite,as pesticide - Determination of potassium sulphate content - Gravimetric method
JUS H.G8.439-1990 Reagents. Potassium io?i?e. Determination of barium content. Turbidimetric method
JUS H.G8.176-1983 Reagents. Potassium dicyanoaurate (I). Determination of gold content. Gravimetric method
JUS H.G8.489-1991 Reagents. Potassium permanganate. Determination of total nitrogen content. Colorimetric method
JUS H.G8.514-1991 Reagents. Potassium hydroxide. Determination of total nitrogen content. Colorimetric method
JUS H.G8.456-1991 Reageats. Potassium sulphats. Determination of pbospbate fc.d?ieot. Spectrophotometric metho?
JUS H.G8.509-1991 Reagents. Potassium hydroxide. Determination of potassium hydroxide and carbonate contents. Volumetric method
JUS H.G8.458-1991 Reagents. Potassium sulphate. Determination of beavy metals content (as Ph). Colorimetric method
JUS H.G8.178-1983 Reagents. Potassium dicyanoaurate (I). Determination of lead content. Turbidimetric method
JUS H.G8.487-1991 Reagents. Potassium permanganate. Determination of chlorides content. Turbidimetric raethod
JUS H.G8.488-1991 Reagents. Potassium permanganate. Determination of sulphates content. Turbidimetric method
JUS H.G8.510-1991 Reagents. Potassium hydroxide. Determination of chlorides content. Turbidimetric method
JUS H.G8.511-1991 Reagents. Potassium hydroxide. Determination of phosphates content. Colorimetric method
JUS H.G8.512-1991 Reagents. Potassium hydroxide. Determination of silicate content. Colorimetric method
JUS H.G8.513-1991 Reagents. Potassium hydroxide. Determination of sulphates content. Turbidimetric method
JUS H.G8.434-1990 Reaqents. Potassiuia iodide. Detenaination of phospha.te content. Spectrophotometric method
JUS H.G8.099-1984 Reagents. Potassium chloride. Determ inat ion ofsubstances insoluble in water. Gravimetric method
JUS H.G8.179-1983 Reagents. Potassium dicyanoaurate (I). Determination of copper content. Potentiometric method
JUS H.G8.438-1990 Reaqents. Potassium iodide. Determination of sodium content. Flame emission spectrophotometric methcd
JUS H.G8.103-1984 Reagents. Potassium chloride. Determination of phosphate content. Spectrophotometric method
JUS H.G8.453-1991 Reagents. Potasslum sulphate. Determiuation of substancvs insoluble in watec. Gravimetric metho?
JUS H.Z1.117-1987 Testing of industrial vvaters. Determination content vfsodium and potasium. Flame photometric me- thod
JUS H.G8.431-1990 Reaqents. rotassium iodide. Determination of chloride and bromi?e content (as Cl). Turbi?imetric method
JUS H.G8.088-1983 Reagents.Sodium chloride.Determination of potassium content.Flame emission spectrophotometric method
JUS H.G8.490-1991 Reagents. Potassiuir. permanganate. Determination of lea?, copper an? iron contents. Flame atomic absorption method
JUS H.G8.433-1990 Reagents. Potassium iodide. Determination of iodate and iodine content (as J0_). Colorimetric method
JUS H.G8.105-1984 Reagents. Potassium chloride. Determination of heavy metals content (asPb). Colorimetric method
JUS H.G8.486-1991 Reagents. Potassium permanganate. Determination of substances insoluble in water. Gravimetric metho?
JUS H.G8.182-1983 Reagents. Potassium dicyanoaurate II). Determination of substances insoluble in water. Gravimetric me- thod

BE-NBN, Determination method of potassium content

NBN T 03-222-1980 Potassium chloride for industrial use - Determination of potassium content - Potassium tetraphenylborate gravimetrie method
NBN T 03-207-1980 Potassium sulphate for industrial use - Determination of potassium content - Gravimetrie method as potassium tetraphenylborate
NBN T 03-223-1980 Potassium chloride for industrial use - Determination of potassium content - Sodium tetraphenylborate titrimetric method
NBN T 03-224-1980 Potassium chloride for industrial use - Determination of moisture content - Gravimetric method
NBN T 03-208-1980 Potassium sulphate for industrial use - Determination of potassium content - Sodium tetraphenylborate volumetric method
NBN T 03-240-1980 Sodium and potassium silicates for industrial use - Determination of silica content - Titrimetric method
NBN T 03-235-1980 Sodium and potassium silicates for industrial use - Determination of silica content - Gravimetrie method by insolubilization
NBN T 03-211-1980 Potassium sulphate for ?ndustrial use - Determination of acidity to methyl orange
NBN T 03-197-1980 Potassium hydroxide for industrial use - Determination of chlorides content - Photometric method
NBN T 03-196-1980 Potassium hydroxide for industrial use - Determination of carbon dioxide content - Titrimetric method
NBN T 03-210-1980 Potassium sulphate for industrial use - Determination of chlorides content - Mercurimetric method
NBN T 03-206-1980 Potassium sulphate for industrial use - Determination of potassium content - Flame emission spectrophotometric method
NBN T 03-221-1980 Potassium chloride for industrial use - Determination of potassium content - Flame emission spectrophotometric method
NBN T 03-209-1980 Potassium sulphate for industrial use - Determination of sulphate content - Barium sulphate gravimetrie method
NBN T 03-242-1980 Sodium and potassium silicates for industrial use - Determination of iron content - 1,10-Phenanthroline photometric method
NBN T 03-190-1980 Potassium hydroxide for industrial use - Determination of iron content - 1,10-Phenanthroline photometric method

German Institute for Standardization, Determination method of potassium content

DIN ISO 9964-3:1996 Water quality - Determination of sodium and potassium - Part 3: Determination of sodium and potassium by flame emission spectrometry (ISO 9964-3:1993)
DIN EN 15477:2009 Fertilizers - Determination of the water-soluble potassium content; English version of DIN EN 15477:2009-04
DIN EN 15477:2009-04 Fertilizers - Determination of the water-soluble potassium content; German version EN 15477:2009 / Note: To be replaced by DIN EN 15477 (2015-03).

KR-KS, Determination method of potassium content

KS M ISO 5318-2007 Fertilizers－Determination of potassium content－Potassium tetraphenylborate gravimetric method(reference method)
KS E ISO 13312-2022 Iron ores — Determination of potassium content — Flame atomic absorption spectrometric method

TR-TSE, Determination method of potassium content

TS 2073-1975 POTASSIUM CHLORIDE FOR INDUSTRIAL USE DETERMINATION OF POTASSIUM CONTENT GRAV?METRIC METHOD AS POTASSIUM TETRAPHENYLBORATE
TS 2113-1975 POTASSIUM HYDROXIDE FOR INDUSTRIAL USE DETERMINATION OF CHLORIDES CONTENT PHOTOMETRIC METHOD
TS 2188-1976 POTASSIUM HYDROXIDE FOR INDUSTRIAL USE DETERMINATION OF CHLORIDE CONTENT MERCURIMETRIC METHOD
TS 3654-1981 METHODS FOR THE ANALYSIS OF WATER DETERMINATION OF CHROMIUM CONTENT — Permanganate Oxidation Spectrofotometric Method
TS 2072-1975 POTASSIUM HYDROXIDE FOR INDUSTRIAL USE DETERMINATION OF CARBON DIOXIDE CONTENT TITRIMETRIC METHOD
TS 3335-1979 METHODS FOR THE CHEMICAL ANALYSISOF CERAMIC WHITAWARE CLAYS- DETERMINATION OF POTASSIUM OXIDESODIUM OXIDE CONTENTS

工业和信息化部, Determination method of potassium content

YB/T 4726.11-2021 Determination of ferrous oxide content in iron-containing dust sludge by potassium dichromate titration method
YB/T 4726.13-2022 Determination of potassium and sodium content in iron-containing dust sludge by flame atomic absorption spectrometry
YB/T 4726.12-2021 Determination of manganese oxide content in iron-containing dust sludge Potassium (sodium periodate) spectrophotometry
YB/T 4726.7-2021 Determination of total iron content in iron-containing dust sludge titanium trichloride reduction potassium dichromate titration method
HG/T 5364-2018 Method for determination of copper content in copper-containing sludge
YB/T 4710-2018 Determination of ferrous oxide content in steel slag by potassium dichromate titration method
YS/T 1462.1-2021 Methods for chemical analysis of crude tin Part 1: Determination of tin content Potassium iodate titration method
HG/T 5016-2016 Determination method of fluorine content in fluorine-containing waste gas
YS/T 1550.1-2022 Methods for chemical analysis of beryllium alloys Part 1: Determination of beryllium content Potassium fluoride titration method
YS/T 1345.6-2020 Methods for chemical analysis of high bismuth lead Part 6: Determination of tin content Potassium iodate titration method
HG/T 5811-2020 Method for determination of iron content in iron-containing chemical sludge
YS/T 1329.1-2019 Methods for chemical analysis of copper telluride Part 1: Determination of tellurium content Potassium dichromate titration method
YB/T 4725-2018 Determination of metallic iron content in steel slag by ferric chloride-potassium dichromate titration method

AENOR, Determination method of potassium content

UNE 34208:1981 SODIUM CHLORIDE. DETERMINATION OF POTASIUM CONTENT. TITRIMETRIC METHOD WITH SODIUM.
UNE-EN 15477:2009 Fertilizers - Determination of the water-soluble potassium content
UNE 103204:1993 ORGANIC MATTER CONTENT OF A SOIL BY THE POTASSIUM PERMANGANATE METHOD.

Professional Standard - Aviation, Determination method of potassium content

HB 5422.5-1989 Method for chemical analysis of copper alloy - Potassium iodate volumetric method for determination of tin content
HB 5297.10-2001 Titanium Alloy Chemical Analysis Method Potassium Iodate Volumetric Method Determination of Tin Content
HB 5219.6-1998 Magnesium alloy chemical analysis method Potassium periodate photometric method Determination of manganese content (including zirconium and rare earth)
HB 5422.8-1989 Methods for chemical analysis of copper alloys - Potassium dichromate volumetric method for determination of iron content
HB 5220.5-1995 Method for Chemical Analysis of Superalloys Potassium Iodate Volumetric Method for Determination of Sulfur Content
HB 5219.7-1998 Magnesium Alloy Chemical Analysis Method Potassium Periodate Photometric Determination of Manganese Content (Excluding Zirconium and Rare Earth)
HB 5220.29-1995 Superalloy Chemical Analysis Method Potassium Dichromate Volumetric Method for Determination of Iron Content
HB 5218.4-1995 Aluminum Alloy Chemical Analysis Methods Potassium Periodate Photometric Determination of Manganese Content
HB 5220.25-1995 Chemical Analysis Method of Superalloy Potassium Ferricyanide Potentiometric Titration Determination of Cobalt Content
HB 5220.5-2008 Methods for chemical analysis of superalloys.Part 5:Determination of sulfur content by potassium iodate volumetric method
HB 5297.13-2001 Titanium Alloy Chemical Analysis Method Potassium Periodate Spectrophotometric Determination of Manganese Content
HB 5220.29-2008 Methods for chemical analysis of superalloys. Part 29: Determination of iron content by potassium dichromate volumetric method
HB 5422.7-1989 Method for chemical analysis of copper alloy Potassium iodide-thiourea absorbance photometry for determination of bismuth content
HB 5220.13-1995 Method for chemical analysis of superalloys Potassium periodate absorptiometry for determination of manganese content
HB/Z 5086.6-2000 Analytical method of cyanide electroplating copper solution Potentiometric titration determination of potassium sodium tartrate content
HB/Z 5218.4-2004 Methods for chemical analysis of aluminium alloys-Part 4:Determination of manganese content by potassium periodate spectrophotometric method
HB 7266.3-1996 Analytical methods for chemical composition of aluminum-lithium alloys Determination of potassium and sodium content by atomic absorption spectrometry

Hebei Provincial Standard of the People's Republic of China, Determination method of potassium content

DB13/T 81.17-1992 Determination of Potassium Acid in Fireworks and Firecracker Mixtures
DB13/T 81.15-1992 Determination method of potassium chlorate content in fireworks and firecrackers mixture
DB13/T 81.16-1992 Determination method of potassium perchlorate content in fireworks and firecrackers mixture

European Committee for Standardization (CEN), Determination method of potassium content

EN 15477:2009 Fertilizers - Determination of the water-soluble potassium content
EN ISO 11427:2016 Jewellery - Determination of silver in silver jewellery alloys - Volumetric (potentiometric) method using potassium bromide (ISO 11427:2014)

PL-PKN, Determination method of potassium content

PN C87006-12-1992 Calcium-magnesiiim fertilizers Determination of potassium
PN C84039-07-1987 Potassium hydroxide technical Determination of iron content Photocolorimetric method
PN C84039-06-1987 Potassium hydroxide technical Determination of potassium hydroxide and potassium carbonate content
PN C04591 ArkusZ01-1974 Water and waste water Tests for potassium Determination of potassium by flame photometric method
PN C84039-08-1987 Potassium hydroxide technical Determination of calcium and magnesium content Complexometric methods
PN C84039-09-1988 Potassium hydroxide technical Determination of heavy metals content
PN C84039-10-1988 Potassium hydroxide technical Determination of chlorides content
PN C84039-11-1988 Potassium hydroxide technical Determination of sulphates content
PN C84039-12-1988 Potassium hydroxide technical Determination of chlorates content
PN A88023-1961 Confectionery. Methods for determination of sugar content

Professional Standard - Commodity Inspection, Determination method of potassium content

SN/T 3809-2014 Determination of potassium content in potassium chloride and potassium sulphate.X-ray fluorescence spectrometry
SN/T 0736.7-2010 Test method for import and export fertilizers.Part 7:Determination of potassium content
SN/T 1014.1-2001 Determination of silicon content in ferrosilicon for export.The potassium fluosilicate volumetric analysis

British Standards Institution (BSI), Determination method of potassium content

BS EN 15477:2009 Fertilizers - Determination of the water-soluble potassium content
BS DD CEN/TS 15105:2006 Solid biofuels - Methods for determination of the water soluble content of chloride, sodium and potassium
BS DD CEN/TS 15105:2005 Solid biofuels — Methods for determination of the water soluble content of chloride, sodium and potassium
BS 5551 SubSec.4.3.4:1988 Fertilizers. Chemical analysis. Determination of potassium. Method for determination of potassium content (titrimetric method)
BS ISO 13312:2006 Iron ores - Determination of potassium - Flame atomic absorption spectrometric method
BS ISO 13312:2017 Iron ores. Determination of potassium. Flame atomic absorption spectrometric method
BS EN 1134:1994 Method for determination of sodium, potassium, calcium and magnesium contents of fruit and vegetable juices by atomic absorption spectrometry
BS ISO 17319:2015 Fertilizers and soil conditioners. Determination of water-soluble potassium content. Potassium tetraphenylborate gravimetric method
BS 5551 SubSec.4.3.3:1984 Fertilizers. Chemical analysis. Determination of potassium. Method for determination of water-soluble potassium content (potassium tetraphenylborate gravimetric method: reference method)
BS DD CEN/TS 15477:2006 Fertilizers - Determination of the water-soluble potassium content
BS EN 31427:1994 Determination of silver in silver jewellery alloys - Volumetric (potentiometric) method using potassium bromide
PD ISO/TS 19407:2015 BS EN 15477. Fertilizers. Determination of the water-soluble potassium content
15/30317857 DC BS EN 15477. Fertilizers. Determination of the water-soluble potassium content
BS ISO 9682-2:2007 Iron ores - Determination of manganese content - Periodate spectrophotometric method
BS 6092-9:1981 Methods of sampling and test for sodium and potassium silicates for industrial use. Determination of iron content
BS 6092-5:1981 Methods of sampling and test for sodium and potassium silicates for industrial use. Determination of total alkali content
BS 6981:1988 Method for determination of acid content of wool

CEN - European Committee for Standardization, Determination method of potassium content

PD CEN/TS 15477:2006 Fertilizers - Determination of the water-soluble potassium content
PREN 15477-2015 Fertilizers - Determination of the water-soluble potassium content
PD CEN/TS 15105:2005 Solid biofuels - Methods for determination of the water soluble content of chloride@ sodium and potassium

Danish Standards Foundation, Determination method of potassium content

DS/EN 15477:2009 Fertilizers - Determination of the water-soluble potassium content
DS/ISO 7485:2001 Animal feeding stuffs - Determination of potassium and sodium contents - Methods using flame-emission spectrometry

Lithuanian Standards Office , Determination method of potassium content

LST EN 15477-2009 Fertilizers - Determination of the water-soluble potassium content

Group Standards of the People's Republic of China, Determination method of potassium content

T/CMES 08004-2020 Determination of silicon content in silicon alloys Potassium fluorosilicate titration
T/QAS 018-2020 Determination of Potassium Oxide Content in Potassium Chloride Sodium Tetraphenylborate Quaternary Ammonium Salt Volumetric Method
T/QAS 072-2021 Determination of ammonium ion content in potassium chloride Titration method after distillation
T/GXAS 474-2023 Determination of chloride content in sugarcane juice—potassium sulfocyanate titrimetric method
T/CAQI 289-2022

Military Standard of the People's Republic of China-General Armament Department, Determination method of potassium content

GJB 1047.1A-2020 Test methods for black powder Part 1: Determination of potassium nitrate content Weighing method
GJB 8682.16-2015 Methods for chemical analysis of pyrotechnic powders Part 16: Determination of potassium chlorate content Potassium dichromate method
GJB 1047.2A-2020 Test methods for black powder Part 2: Determination of potassium nitrate content Conductometric method

Military Standard of the People's Republic of China-Commission of Science,Technology and Industry for National Defence, Determination method of potassium content

GJB 5381.16-2005 Methods of chemical analysis for pyrotech. Part 16: Determination of potassium chlorate content. Dichromate titration method

Professional Standard - Ferrous Metallurgy, Determination method of potassium content

YB/T 191.4-2001 Methods for chemical analysis of chromium ores----The potassium dichromate titrimetric method for the determination of total iron content
YB/T 5041-2012 Molybdenum oxide.Determination of sulfur content.Combustion-potassium iodate volumetric method
YB/T 5176-1993 Test method of raw material oil for carbon ink Determination method of potassium and sodium content (flame photometer method)
YB/T 159.3-1999 Methods for chemical analysis of titanium concentrate (rock minerals).The potassium dichromate volumetric method for the determination of ferrous oxide content
YB/T 1593-1999 Chemical analysis method of titanium concentrate (rock ore) Determination of ferrous oxide content by potassium dichromate volumetric method
YB/T 4392.2-2014 Sulphat titanium slag.Determination of metallic iron content.Dichromate titrimetric method
YB/T 159.3-2015 Titanium concentrate(rock minerals).Determination of ferrous oxide content.The potassium dichromate titrimetric method

Qinghai Provincial Standard of the People's Republic of China, Determination method of potassium content

DB63/T 1423-2015 Determination of Potassium Oxide Content in Potassium Nitrate Sodium Tetraphenylborate Quaternary Ammonium Salt Volumetric Method
DB63/T 1318-2014 Determination of Potassium Oxide Content in Potassium Chloride Sodium Tetraphenylborate Quaternary Ammonium Salt Volumetric Method

Professional Standard - Chemical Industry, Determination method of potassium content

HG/T 4552.1-2013 Method for the measurement tin-content in spent tin-stripping solution.Part 1:Potassium iodate titration method
HG/T 5813～5814-2020 Determination method of lead content and zinc content determination method of waste chemicals (2020)
HG/T 2956.4-2001 Ascharite ores - Determination of total iron content - Potassium dichromate volumetric method
HG/T 2956.5-2001 Ascharite ores - Determination of ferrous oxide content - Potassium dichromate volumetric method

Anhui Provincial Standard of the People's Republic of China, Determination method of potassium content

DB34/T 2878-2017 Methods for chemical analysis of copper slag tailings Determination of iron content Potassium dichromate titration method
DB34/T 2580-2015 Copper telluride chemical analysis method Determination of tellurium content Potassium dichromate-ferrous ammonium sulfate volumetric method

中华人民共和国国家质量监督检验检疫总局、中国国家标准化管理委员会, Determination method of potassium content

GB/T 34162-2017 Natural gas—Determination of arsenic content—Potassium permanganate sample method
GB/T 5195.5-2017 Fluorspar—Determination of total sulfur content—Pipe furnace combustion iodic acid potassium titration method

IN-BIS, Determination method of potassium content

IS 12760-1989

ES-UNE, Determination method of potassium content

UNE 103204:2019 Organic matter content of a soil by the potassium permanganate method.

未注明发布机构, Determination method of potassium content

BS EN 1134:1995(1999) Method for Determination of sodium, potassium, calcium and magnesium contents of fruit and vegetable juices by atomic absorption spectrometry

PT-IPQ, Determination method of potassium content

NP 1376-1976

IL-SII, Determination method of potassium content

S.I.249 Pt.216-1964 TESTING OF WATER :DETERMINATION OF SODIUM AND OR PO-TASSIUM CONTENT

国家市场监督管理总局、中国国家标准化管理委员会, Determination method of potassium content

GB/T 17832-2021 Silver jewellery alloys—Determination of silver—Volumetric (potentiometric) method using potassium bromide
GB/T 19559-2021 Method of determining coalbed methane content
GB/T 4333.1-2019 Ferrosilicon—Determination of silicon content—Perchloric acid dehydration gravimetric method and potassium fluosilicate volumetric method

Professional Standard - Machinery, Determination method of potassium content

JB/T 4107.6-1999 Chemical analyse method for electrical contact materials.Determination of iron content in the silver - iron ( Determine iron content by the potassium dichromate method)
JB/T 7948.7-1995 Methods of Chemical Analysis of Soldering Flux Part 7: Determination of Sodium Oxide and Potassium Oxide

Professional Standard - Nuclear Industry, Determination method of potassium content

EJ/T 1235-2008 Determination of uranium content in uranium product.Iron(Ⅱ)reduction/potassium dichromate oxidation titrimetric method

Sichuan Provincial Standard of the People's Republic of China, Determination method of potassium content

DB51/T 2045-2015 Determination method of high-purity vanadium pentoxide potassium oxide and sodium oxide content
DB51/T 842-2008 Determination of Humic Acid Content in Fertilizers - Potassium Dichromate

Professional Standard - Electron, Determination method of potassium content

SJ/T 10924-1996 Methods for determination of silica content in potassium silicate solution for use in electronic industry

工业和信息化部/国家能源局, Determination method of potassium content

JB/T 7948.7-2017 Flux chemical analysis methods Part 7: Determination of sodium oxide and potassium oxide content

VN-TCVN, Determination method of potassium content

TCVN 7255-2003 Tobacco and tobacco products.Determination of total potassium content
TCVN 5384-1991 Crude oil.Determination of sodium and potassium content by atomic absorption spectrophotometry
TCVN 5614-1991 Tea.Method for determination of iron content
TCVN 2173-1987 Tin.Method for the determination of iron content
TCVN 2174-1987 Tin.Method for the determination of aluminium content
TCVN 2175-1987 Tin.Methods for determination of antimony content
TCVN 2176-1987 Tin.Methods for determination of antimony content
TCVN 2177-1987 Tin.Method for the determination of copper content
TCVN 2178-1987 Tin.Method for the determination of zinc content
TCVN 2179-1987 Tin.Method for the determination of bimut content
TCVN 2180-1987 Tin.Method for the determination of lead content
TCVN 2181-1987 Tin.Method for the determination of sulphur content
TCVN 2093-1993 Paints.Method for determination of solid content and binders content
TCVN 3871-1983 Ferromanganese.Method for the determination of sulphur content
TCVN 3872-1983 Ferromanganese.Method for the determination of silicon content
TCVN 3867-1983 Ferrotitanium.Method for the determination of copper content
TCVN 3870-1983 Ferromanganese.Method for the determination of carbon content
TCVN 2744-1986 Pesticides.Method for the determination of water contents
TCVN 5349-1991 Graphite.Method for the determination of moisture content
TCVN 5353-1991 Graphite.Method for the determination of iron content
TCVN 5355-1991 Graphite.Method for the determination of copper content
TCVN 5356-1991 Graphite.Method for the determination of cobalt content
TCVN 5357-1991 Graphite.Method for the determination of nikel content
TCVN 5358-1991 Graphite.Method for the determination of lead content
TCVN 5359-1991 Graphite.Method for the determination of arsenic content
TCVN 3855-1983 Ferrochrome.Method for the determination of carbon content
TCVN 3856-1983 Ferrochrome.Method for the determination of sulphur content
TCVN 3857-1983 Ferrochrome.Methods for the determination of silicon content
TCVN 3858-1983 Ferrochrome.Method for the determination of phosphorus content
TCVN 3859-1983 Ferrochrome.Method for the determination of manganese
TCVN 3862-1983 Ferrotitanium.Methods for the determination of carbon content
TCVN 3863-1983 Ferrotitanium.Method for the determination of sulphur content
TCVN 3864-1983 Ferrotitanium.Method for the determination of silicon content
TCVN 3865-1983 Ferrotitanium.Method for the determination of phosphorus content
TCVN 3866-1983 Ferrotitanium.Method for the determination of aluminium content

Professional Standard - Petroleum, Determination method of potassium content

SY/T 6940-2013 Measurement method of shale gas content
SY/T 5503-2000 The method for measurement of chloride content in rocki
SY/T 5503-2009 Test method of chloride content in rock

国家能源局, Determination method of potassium content

SY/T 6940-2020 Measurement method of shale gas content

ZA-SANS, Determination method of potassium content

SANS 11427:1993 Determination of silver in silver jewellery alloys - Volumetric (potentiometric) method using potassium bromide

ET-QSAE, Determination method of potassium content

ES O.B9.021-1973