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for total nitrogen analysisUV
for total nitrogen analysisUV, Total:149 items.
In the international standard classification, for total nitrogen analysisUV involves: Water quality, Analytical chemistry, Vocabularies, Soil quality. Pedology, Burners. Boilers, Rubber, ENVIRONMENT. HEALTH PROTECTION. SAFETY, Fertilizers, Optics and optical measurements, Education, Equipment for the chemical industry, Linear and angular measurements, Industrial automation systems, Environmental protection, Products of the chemical industry, General methods of tests and analysis for food products, Inorganic chemicals, Raw materials for rubber and plastics, Ceramics, Fuels, Coals, Metalliferous minerals, Power stations in general, Spices and condiments. Food additives, Products of the textile industry, Air quality, Ferrous metals, Refractories, Natural gas, Non-ferrous metals, Petroleum products in general.
Danish Standards Foundation, for total nitrogen analysisUV
- DS/ISO 29441:2010 Water quality - Determination of total nitrogen after UV digestion - Method using flow analysis (CFA and FIA) and spectrometric detection
- DS/EN 16344:2013 Cosmetics - Analysis of cosmetic products - Screening for UV-filters in cosmetic products and quantitative determination of 10 UV-filters by HPLC.
- DS/EN ISO 13395:1997 Water quality - Determination of nitrite nitrogen and nitrate nitrogen and the sum of both by flow analysis (CFA and FIA) and spectrometric detection
国家市场监督管理总局、中国国家标准化管理委员会, for total nitrogen analysisUV
- GB/T 37186-2018 Gas analysis—Determination of sulfur dioxide and nitrogen oxides—Ultraviolet differential optical absorption spectroscopy
- GB/T 40723-2021 Rubber—Determination the contents of total sulfur and total nitrogen — Automatic analyser method
- GB/T 41072-2021 Surface chemical analysis—Electron spectroscopies—Guidelines for ultraviolet photoelectron spectroscopy analysis
- GB/T 11060.8-2020 Natural gas—Determination of sulfur compounds—Part 8：Determination of total sulfur content by ultraviolet fluorescence method
General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China, for total nitrogen analysisUV
- GB/T 11894-1989 Water quality--Determination of total nitrogen--Alkaline potassium persulfate digestion-UV spectro photometric method
- GB/T 32737-2016 Determination of nitrate nitrogen in soil - Ultraviolet spectrophotometry method
- GB/T 14422-1993 Analysis of water used in boiler and cooling system. Determination of benzotriazole. Ultraviolet spectrophotometry
- GB/T 25481-2010 On-line ultraviolet/visible spectrum analyzer
- GB/T 13971-1992 Specification of ultra-violet gas analyzers
- GB/T 13971-2013 Specification of ultraviolet gas analyzers
- GB/T 34796-2017(英文版) Quantification and purity analysis of nucleic acid concentration in solution—Ultraviolet spectrophotometry
- GB/T 12153-1989 Analysis of water used in boiler and cooling system--Determination for mineral oil--Ultraviolet spectrophotometry
- GB/T 6730.24-1986 Methods for chemical analysis of iron ores--The arsenazo 3 photometric method for the determination of rare earth elements content
- GB 223.49-1985 Methods for chemical analysis of iron,steel and alloy--The extraction separation-chlorophosphonazo mA photometric method for the determination of rare earth elements
- GB/T 3257.15-1999 Methods for chemical analysis of bauxite--Determination the total content of rare earth oxide--Tribromo-arsenazo photometric method
- GB/T 14423-1993 Analysis of water used in boiler and cooling system. 2-Mercaptobenzothiazole. Ultraviolet spectrophotometry
- GB/T 223.49-1994 Methods for chemical analysis of iron,steel and alloy. Extraction separation-chlorophosphonazo mA spectrophotometric method for the determination of the total rare tarth content
- GB/T 11060.8-2012 Natural gas.Determination of sulfur compound.Part 8:Determination of total sulfur content by ultraviolet fluorescence method
- GB/T 6987.24-2001 Aluminium and aluminium alloys--Determination of the cerium subgroup of rare earth elements content--Tribromoarsenazo spectrophotometric method
- GB/T 4325.23-2013 Methods for chemical analysis of molybdenum.Part 23:Determination of oxygen and nitrogen contents.Inert gas fusion-infrared absorption and thermal conductivity method
- GB/T 6912.1-1986 Methods for analysis of water for boiler and for cooling--The determination of nitrates and nitrites--Ultraviolet spectrophotometry for nitrates
- GB/T 6912.2-1986 Methods for analysis of water for boiler and for cooling--The determination of nitrates and nitrites--Ultraviolet spectrophotometry for nitrites
- GB/T 6912.1-2006 Methods for analysis of water for boiler and for cooling. Determination of nitrates and nitrites. Part 1: Ultraviolet spectrophotometry for nitrates
Professional Standard - Environmental Protection, for total nitrogen analysisUV
- HJ 636-2012 Water quality.Determination of total nitrogen.Alkaline potassium persulfate digestion UV spectrophotometric method
- HJ/T 102-2003 The technical requirement for water quality automatic analyzer of total nitrogen
- HJ/T 346-2007 Water quality. Determination of nitrate-nitrogen. Ultraviolet spectrophotometry
- HJ/T 42-1999 Stationary source emission.Determination of nitrogen oxide.Ultraviolet spectrophotometric method
National Metrological Verification Regulations of the People's Republic of China, for total nitrogen analysisUV
- JJG 1094-2013 Water Quality On-line Analyzers of Total Phosphorus and Total Nitrogen
International Organization for Standardization (ISO), for total nitrogen analysisUV
- ISO 29441:2010 Water quality - Determination of total nitrogen after UV digestion - Method using flow analysis (CFA and FIA) and spectrometric detection
- ISO 4735:2002 Oils of citrus - Determination of CD value by ultraviolet spectrometric analysis
- ISO 15672:2000 Rubber and rubber additives - Determination of total nitrogen content using an automatic analyser
- ISO 4735:1981 Oils of citrus; Determination of CD value by ultraviolet spectrophotometric analysis
- ISO 21820:2021 Fine ceramics (advanced ceramics, advanced technical ceramics) - Ultraviolet photoluminescence image test method for analysing polytypes of boron- and nitrogen-doped SiC crystals
- ISO 13395:1996 Water quality - Determination of nitrite nitrogen and nitrate nitrogen and the sum of both by flow analysis (CFA and FIA) and spectrometric detection
- ISO 22066:2020 Water quality — Determination of total cyanide — Method using segmented flow injection, in-line ultraviolet digestion analysis by gas diffusion and amperometric detection
- ISO/DIS 21068-2 Chemical analysis of raw materials and refractory products containing silicon-carbide, silicon-nitride, silicon-oxynitride and sialon — Part 2: Determination of volatile components, total carbon, free carbon, silicon carbide, total and free silicon, free
- ISO 5666-2:1983 Water quality; Determination of total mercury by flameless atomic absorption spectrometry; Part 2: Method after pretreatment with ultraviolet radiation
National Metrological Technical Specifications of the People's Republic of China, for total nitrogen analysisUV
Professional Standard - Water Conservancy, for total nitrogen analysisUV
- SL 84-1994 Determination of nitrogen (nitrate)(Ultraviolet spectrophtometric method)
Professional Standard - Agriculture, for total nitrogen analysisUV
- NY/T 1116-2006 Fertilizers-Determination of nitrate nitrogen content.UItraviolet spectro-photometric method
NO-SN, for total nitrogen analysisUV
- NS 4745-1991 Water analysis - Determination of the sum of nitrite nitrogen and nitrate nitrogen
- NS 4743-1993 Water analysis. Determination of total nitrogen after oxidation with peroxodisulphate
Group Standards of the People's Republic of China, for total nitrogen analysisUV
- T/GDCKCJH 048-2021 Performance requirements and test methods for ultraviolet analyzer
- T/QAS 082.3-2022 Chemical Analysis of Rock Salt and Glauber's Salt Part 3: Determination of Nitrate by Ultraviolet Spectrophotometry
- T/CPCIF 0187-2022 Rapid analysis method of diesel engines NOx reduction agent- aqueous urea solution（AUS 32)—Near infrared spectrometry
Professional Standard - Railway, for total nitrogen analysisUV
- TB/T 2544.3-1995 Quick Analysis Method for Corrosion Inhibitor in Cooling Water of Railway Diesel Locomotive Determination of Benzotriazole by UV Spectrophotometry
- TB/T 2544.2-1995 Quick Analysis Method for Corrosion Inhibitor in Cooling Water of Railway Diesel Locomotive Determination of Nitrite Ultraviolet Spectrophotometry
中华人民共和国环境保护部, for total nitrogen analysisUV
- GB 11894-1989 Water quality-Determination of total nitrogen-Alkaline potassium persulfate digestion-UV spectrophotometric method
AT-ON, for total nitrogen analysisUV
- ONORM L 1095-2002 Chemical analyses of soils - Determination of total nitrogen by dry combustion
Professional Standard - Commodity Inspection, for total nitrogen analysisUV
- SN/T 3097-2012 Determination of total nitrogen in fertelezers.Combustion
Professional Standard - Education, for total nitrogen analysisUV
- JY/T 0570-2020 General rules for ultraviolet and visible absorption spectrometry
Association Francaise de Normalisation, for total nitrogen analysisUV
- NF ISO 4735:2002 Huiles essentielles de Citrus - Détermination de la valeur CD par analyse spectrométrique dans l'ultraviolet
- NF T75-122*NF ISO 4735:2002 Oils of Citrus - Determination of CD value by ultraviolet spectrometric analysis.
- NF X31-418*NF ISO 13878:1998 Soil quality. Determination of total nitrogen content by dry combustion ("elemental analysis").
- NF T20-295:1968 CHEMICAL ANALYSIS OF SULPHURIC ACID AND OLEUM. DETERMINATION OF TOTAL NITROGEN.
- NF ISO 13878:1998 Qualité du sol - Détermination de la teneur totale en azote par combustion sèche ("analyse élémentaire")
- NF EN 16344:2013 Cosmétiques - Analyse des préparations cosmétiques - Détection des filtres UV dans les produits cosmétiques et détermination quantitative de 10 filtres UV par CLHP
- NF EN ISO 13395:1996 Qualité de l'eau - Détermination de l'azote nitreux et de l'azote nitrique et de la somme des deux par analyse en flux (CFA et FIA) et détection spectrométrique
- NF T75-122:1982 ESSENTIAL OILS. OILS OF CITRUS. DETERMINATION OF CD VALUE BY ULTRAVIOLET SPECTROPHOTOMETRIC ANALYSIS.
- NF T90-012*NF EN ISO 13395:1996 Water quality - Determination of nitrite nitrogen and nitrate nitrogen and the sum of both by flow analysis (CFA and FIA) and spectrometric detection.
- NF X31-408*NF ISO 11264:2008 Soil quality - Determination of herbicides - Method using HPLC with UV-detection
- XP CEN/TS 17784-1:2022 Engrais organo-minéraux - Identification des agents complexants - Partie 1 : méthode utilisant la spectrophotométrie UV-Vis et la gravimétrie
- NF M07-073:2001 Petroleum products - Determination of the content of total aromatic hydrocarbons in saturated fractions - Ultra-Violet absorbance spectrometric method for low contents.
- NF EN 16956:2017 Cosmétiques - Méthodes analytiques - Méthode CLHP couplée à la détection UV pour l'identification et l'analyse de l'hydroquinone, de ses éthers et des corticostéroïdes dans les produits cosmétiques éclaircissants de la peau
VN-TCVN, for total nitrogen analysisUV
- TCVN 6645-2000 Soil quality.Determination of total nitrogen content by dry combustion ("elemental analysis")
AENOR, for total nitrogen analysisUV
- UNE 34080:1974 ANALYSIS METHODS FOR CHOCOLATES. DETERMINATION OF TOTAL NITROGEN. (PROTEINS).
- UNE 77325:2003 Soil quality. Determination of total nitrogen content by dry combustion ("elemental analysis").
- UNE-EN 16344:2014 Cosmetics - Analysis of cosmetic products - Screening for UV-filters in cosmetic products and quantitative determination of 10 UV-filters by HPLC.
- UNE-EN ISO 13395:1997 WATER QUALITY. DETERMINATION OF NITRITE NITROGEN AND NITRATE NITROGEN AND THE SUM OF BOTH BY FLOW ANALYSIS (CFA AND FIA) AND SPECTROMETRIC DETECTION. (ISO 13395:1996).
工业和信息化部, for total nitrogen analysisUV
- HG/T 5642-2019 Ultraviolet method H2S and SO2 ratio analyzer for sulfur recovery unit
- YS/T 1525-2022 Chemical analysis methods for nickel-platinum alloys, determination of oxygen and nitrogen content, pulse-infrared absorption method and thermal conductivity detection method
Korean Agency for Technology and Standards (KATS), for total nitrogen analysisUV
- KS H ISO 4735:2011 Oils of Citrus-Determination of CD value by ultraviolet spectrometric analysis
- KS H ISO 4735:2014 Oils of Citrus－Determination of CD value by ultraviolet spectrometric analysis
- KS I ISO 13878:2009 Soil quality－Determination of total nitrogen content by dry combustion(“elemental analysis”)
- KS M ISO 15672:2007 Rubber and rubber additives－Determination of total nitrogen content using an automatic analyser
- KS M ISO 15672-2007(2017) Rubber and rubber additives－Determination of total nitrogen content using an automatic analyser
- KS M ISO 15672-2007(2022) Rubber and rubber additives－Determination of total nitrogen content using an automatic analyser
- KS I ISO 13395-2008(2018) Water quality－Determination of nitrite nitrogen and nitrate nitrogen and the sum of both by flow analysis (CFA and FIA) and spectrometric detection
- KS I ISO 13395:2008 Water quality-Determination of nitrite nitrogen and nitrate nitrogen and the sum of both by flow analysis (CFA and FIA) and spectrometric detection
- KS I ISO 21258:2012 Stationary source emissions-Determination of the mass concentration of dinitrogen monoxide(N2O)-Reference method:Non-dispersive infrared method
NL-NEN, for total nitrogen analysisUV
- NEN 6646-1990 Water - Photometric determination of the content of ammonium nitrogen and of the sum of the contents of ammoniacal and organically bound nitrogen according to Kjeldahl by continuous flow analysis
American Society for Testing and Materials (ASTM), for total nitrogen analysisUV
- ASTM E169-04(2009) Standard Practices for General Techniques of Ultraviolet-Visible Quantitative Analysis
- ASTM E169-63(1977) Standard Recommended Practices for General Techniques Of Ultraviolet Quantitative Analysis
- ASTM D7511-12(2017)e1 Standard Test Method for Total Cyanide by Segmented Flow Injection Analysis, In-Line Ultraviolet Digestion and Amperometric Detection
- ASTM D7511-09e1 Standard Test Method for Total Cyanide by Segmented Flow Injection Analysis, In-Line Ultraviolet Digestion and Amperometric Detection
- ASTM D7511-09 Standard Test Method for Total Cyanide by Segmented Flow Injection Analysis, In-Line Ultraviolet Digestion and Amperometric Detection
- ASTM E169-04 Standard Practices for General Techniques of Ultraviolet-Visible Quantitative Analysis
- ASTM E169-16(2022) Standard Practices for General Techniques of Ultraviolet-Visible Quantitative Analysis
- ASTM D7511-09e2 Standard Test Method for Total Cyanide by Segmented Flow Injection Analysis, In-Line Ultraviolet Digestion and Amperometric Detection
- ASTM D7511-12 Standard Test Method for Total Cyanide by Segmented Flow Injection Analysis, In-Line Ultraviolet Digestion and Amperometric Detection
- ASTM E169-63(1981)e1 Standard Recommended Practice for General Techniques of Ultraviolet Quantitative Analysis
- ASTM E169-16 Standard Practices for General Techniques of Ultraviolet-Visible Quantitative Analysis
- ASTM E169-99 Standard Practices for General Techniques of Ultraviolet-Visible Quantitative Analysis
- ASTM E169-04(2014) Standard Practices for General Techniques of Ultraviolet-Visible Quantitative Analysis
British Standards Institution (BSI), for total nitrogen analysisUV
- BS 5551-4.1.3:1986 Fertilizers. Chemical analysis. Determination of nitrogen. Method for determination of total nitrogen content (titrimetric method after distillation)
- BS ISO 22066:2020 Water quality. Determination of total cyanide. Method using segmented flow injection, in-line ultraviolet digestion analysis by gas diffusion and amperometric detection
- BS ISO 21820:2021 Fine ceramics (advanced ceramics, advanced technical ceramics). Ultraviolet photoluminescence image test method for analysing polytypes of boron- and nitrogen-doped SiC crystals
- 20/30349837 DC BS ISO 21820. Fine ceramics (advanced ceramics, advanced technical ceramics). Ultraviolet photoluminescence image test method for analyzing polytypes of boron and nitrogen doped SiC crystals
- DD ISO/TS 12902:2002 Solid mineral fuels. Determination of total carbon, hydrogen and nitrogen. Instrumental methods
- BS ISO 15672:2000 Rubber and rubber additives - Determination of total nitrogen content using an automatic analyser
- BS EN ISO 13395:1996 Water quality - Determination of nitrite nitrogen and nitrate nitrogen and the sum of both by flow analysis (CFA and FIA) and spectrometric detection
- 19/30355969 DC BS ISO 22066. Water quality. Determination of available total cyanide. Method using segmented flow injection, in-line ultraviolet digestion analysis by gas diffusion and amperometric detection
- PD CEN/TS 17784-1:2022 Organo-mineral fertilizers. Identification of complexing agents.. Method using UV-Vis spectrophotometry and gravimetry
- 23/30446956 DC BS EN ISO 21068-2. Chemical analysis of raw materials and refractory products containing silicon carbide, silicon nitride, silicon oxynitride and sialon - Part 2. Determination of volatile components, total carbon, free carbon, silicon carbide,…
Ningxia Provincial Standard of the People's Republic of China, for total nitrogen analysisUV
- DB64/T 1515-2017 Determination of Total Glucosides in Sheep Placenta Capsules by Ultraviolet Spectrophotometry
Japanese Industrial Standards Committee (JISC), for total nitrogen analysisUV
- JIS K 0170-3:2011 Testing methods for water quality by flow analysis -- Part 3: Total nitrogen
- JIS K 0170-3:2019 Testing methods for water quality by flow analysis -- Part 3: Total nitrogen
- JIS K 2180-5:2013 Dimethylether (DME) for fuels -- Part 5: Determination of total sulfur -- Ultraviolet fluorescence method
- JIS D 1030:1998 Automobiles -- Analytical procedure for measurement of carbon monoxide, carbon dioxide, total hydrocarbons and oxides of nitrogen in exhaust gas
German Institute for Standardization, for total nitrogen analysisUV
- DIN ISO 13878:1998 Soil quality - Determination of total nitrogen content by dry combustion ("elemental analysis") (ISO 13878:1998)
- DIN EN 16344:2013-11 Cosmetics - Analysis of cosmetic products - Screening for UV-filters in cosmetic products and quantitative determination of 10 UV-filters by HPLC; German version EN 16344:2013
- DIN EN ISO 13395:1996-12 Water quality - Determination of nitrite nitrogen and nitrate nitrogen and the sum of both by flow analysis (CFA and FIA) and spectrometric detection (ISO 13395:1996); German version EN ISO 13395:1996
- DIN CEN/TS 17784-1:2022-07 Organo-mineral fertilizers - Identification of complexing agents - Part 1: Method using UV-Vis spectrophotometry and gravimetry; German version CEN/TS 17784-1:2022
- DIN EN ISO 21068-2:2023-07 Chemical analysis of raw materials and refractory products containing silicon-carbide, silicon-nitride, silicon-oxynitride and sialon - Part 2: Determination of volatile components, total carbon, free carbon, silicon carbide, total and free silicon, fr...
CZ-CSN, for total nitrogen analysisUV
SE-SIS, for total nitrogen analysisUV
Standard Association of Australia （SAA）, for total nitrogen analysisUV
Professional Standard - Geology, for total nitrogen analysisUV
- DZ/T 0064.59-2021 Methods of Analytical Groundwater Quality Part 59: Determination of Nitrate by Ultraviolet Spectrophotometry
未注明发布机构, for total nitrogen analysisUV
- BS EN ISO 13395:1996(1998) Water quality — Determination of nitrite nitrogen and nitrate nitrogen and the sum of both by flow analysis (CFA and FIA) and spectrometric detection
- BS 684-1.15:1990(1999)*ISO 4656:1989 Methods of analysis of Fats and fatty oils — Part 1 : Physical methods — Section 1.15 Determination of ultraviolet absorbance
US-CFR-file, for total nitrogen analysisUV
- CFR 40-1065.272-2014 Protection of Environment. Part1065:Engine-testing procedures. Section1065.272:Nondispersive ultraviolet analyzer.
Professional Standard - Electricity, for total nitrogen analysisUV
- DL/T 502.28-2006 Analytical methods of steam and water in power plants Part 28: Determination of organic matter (Ultraviolet spectrophotometry)
中华全国供销合作总社, for total nitrogen analysisUV
- GH/T 1290-2020 Determination of the total content of Zanthoxylum amide in Zanthoxylum bungeanum and Zanthoxylum bungeanum processing products by UV spectrophotometry
Professional Standard - Aviation, for total nitrogen analysisUV
- HB 5218.14-1995 Aluminum Alloy Chemical Analysis Method Tribromoarsine Spectrophotometric Determination of Total Rare Earth in Cerium Group
- HB 5297.24-2001 Determination of Oxygen and Nitrogen Content by Pulse Heating Infrared Thermal Conductivity Method for Chemical Analysis of Titanium Alloy
- HB/Z 5218.14-2004 Methods for chemical analysis of aluminium alloys-Part 14:Determination of the cerium subgroup of rare earth elements content by tribromoarsenazo spectrophtometric method
- HB 5220.49-2008 Methods for chemical analysis of superalloys. Part 49: Determination of oxygen, nitrogen content by impulse heating-infrared, thermal conductivity method
- HB 5220.39-1995 Chemical Analysis Method of Superalloys PMBP Direct Extraction-ArsenazoⅢ Absorbance Spectrophotometry Determination of Total Rare Earth
- HB 5220.39-2008 Methods for chemical analysis of superalloys. Part 39: Determination of total rare earth content by PMBP direct extraction-arsenazo Ⅲ photometric method
国家质量监督检验检疫总局, for total nitrogen analysisUV
- SN/T 4668-2016 Qualitative Analysis of Imported and Exported Textile Fibers by UV Diffuse Reflectance Spectrometry of Natural Colored Cotton
European Committee for Standardization (CEN), for total nitrogen analysisUV
- EN ISO 13395:1996 Water Quality - Determination of Nitrite Nitrogen and Nitrate Nitrogen and the Sum of Both by Flow Analysis (CFA and FIA) and Spectrometric Detection
- prEN 25666-2-1992 Water quality; determination of total mercury by flameless atomic absorption spectrometry; part 2: method after pretreatment with ultraviolet radiation (ISO 5666-2:1983)
Lithuanian Standards Office , for total nitrogen analysisUV
- LST EN ISO 13395:2000 Water quality - Determination of nitrite nitrogen and nitrate nitrogen and the sum of both by flow analysis (CFA and FIA) and spectrometric detection (ISO 13395:1996)
ZA-SANS, for total nitrogen analysisUV
- SANS 13395:1996 Water quality - Determination of nitrite nitrogen and nitrate nitrogen and the sum of both by flow analysis (CFA and FIA) and spectrometric detection
Indonesia Standards, for total nitrogen analysisUV
- SNI 06-2505-1991 Water, Test methods for total organic carbon content by infrared KOT analyzers
Professional Standard - Non-ferrous Metal, for total nitrogen analysisUV
- YS/T 575.14-2006 Chemical analysis method of bauxite ore-tribromoarsine spectrophotometric determination of total rare earth oxides
- YS/T 575.14-2007 Methods for chemical analysis of bauxite.Part 14:Determination the total content of rare earth oxide.Tribromo-arsenazo photometric method
- YS/T 861.2-2013 Methods for chemical analysis of niobium-titanium alloy.Part 2:Determination of oxygen and nitrogen content.Inert gas fusion infrared/thermal conductivity method
RO-ASRO, for total nitrogen analysisUV
- STAS 11327/1-1989 RUBBER STOPPERS FOR BLOOD BOTTLES AND PARENTERAL USE PREPARATIONS General specifications for physical and chemical analysis carrying out
Professional Standard - Petroleum, for total nitrogen analysisUV
- SY/T 6009.9-2003 Test method of samples of geochemical exploration for oil and gas Part 9:Determination of the gross amount of aromatic hydrocarbons and their ramifications Ultraviolet spectroscopy
ES-UNE, for total nitrogen analysisUV
- UNE-CEN/TS 17784-1:2022 Organo-mineral fertilizers - Identification of complexing agents - Part 1: Method using UV-Vis spectrophotometry and gravimetry (Endorsed by Asociación Española de Normalización in May of 2022.)
水利部, for total nitrogen analysisUV
- SL/T 788-2019 Determination of total nitrogen, volatile phenols, sulfides, anionic surfactants and hexavalent chromium in water quality continuous flow analysis-spectrophotometry
Professional Standard - Rare Earth, for total nitrogen analysisUV
- XB/T 617.7-2014 Chemical analysis methods for neodymium iron boron alloy.Part 7:Determination of oxygen and nitrogen contents.Impulse-infrared and impulse-thermal conductance absorption 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, for total nitrogen analysisUV
- GB/T 13747.22-2017 Methods for chemical analysis of zirconium and zirconium alloys—Part 22：Determination of oxygen and nitrogen contents—Inert gas fusion-infrared absorption and thermal conductivity method