G10 无机化工原料综合 标准查询与下载

BS 5688-27:1986 工业用原硼酸(硼酸),三氧化二硼(氧化硼),四硼酸二钠,高硼酸钠与粗硼酸钠的试验方法.粗硼酸钠中二氧化硅总含量和可溶于碱的二氧化硅含量的测定

Spectrometric method.

Methods of test for orthoboric acid (boric acid), diboron trioxide (boric oxide), disodium tetraborates, sodium perborates and crude sodium borates for industrial use - Determination of total and alkali-soluble silica contents of crude sodium borates

BS 5688-28:1986 工业用原硼酸(硼酸),三氧化二硼(氧化硼),四硼酸二钠,高硼酸钠与粗硼酸钠的试验方法.粗硼酸钠中钙与镁总含量和可溶于碱的钙与镁含量的测定(火焰原子吸收光谱测定法)

This International Standard specifies a flame atomic absorption spectrometric method for the determination of the total and alkali-soluble calcium and magnesium contents of crude sodium borates for industrial use. The method is applicable to products in which the calcium con-tent, expressed as calcium, is not lower than 0,02 % (m/m) and not greater than 1,0 % (m/m) and in which the magnesium content, expressed as magnesium, is not lower than 0,01 % (m/m) and not greater than 0,2 % (m/m).

Methods of test for orthoboric acid (boric acid), diboron trioxide (boric oxide), disodium tetraborates, sodium perborates and crude sodium borates for industrial use - Determination of total and alkali-soluble calcium and magnesium contents of crude sodi

NAVY MIL-B-24155 B-1986 去除锅垢化合物

This specification covers a dual packaged compound to be used as a scale remover on medium and high pressure boilers.

BOILER SCALE REMOVING COMPOUND

ISO 7110:1985 工业(包括食品)用碳酸氢铵 铅含量的测定 火焰原子吸收法

Ammonium bicarbonate (Ammonium hydrogen- carbonate) for industrial use (including foodstuffs); Detetrmination of lead content; Flame atomic absorption method

ISO 7104:1985 工业用无水液氨 水含量的测定 气相色谱法

Liquefied anhydrous ammonia for industrial use; Determination of water content; Gas chromatographic method

ISO 7106:1985 工业用无水液氨 油含量的测定 重量法和红外光谱法

A test portion is evaporated at ambient temperature and the oil contained in the residue is extracted with carbon tetrachloride. The oil contained in the residue is determined either gravimetrically by evaporation of the organic solvent and weighing of the residue or by spectrometric measurement of the absorbance of the organic phase at a wavelength of approximately 3.42 m. The gravimetric method is applicable to products having an oil content equal to or greater than 10 mg/kg. The infra-red spectrometric method, being more sensitive, is applicable to products having an oil content greater than 1 mg/kg.

Liquefied anhydrous ammonia for industrial use; Determination of oil content; Gravimetric and infra-red spectrometric methods

ISO 7105:1985 工业用无水液氨 水含量的测定 卡尔·费休法

A test portion is evaporated in the presence of ethanediol and the water content of the residue is determined by the Karl Fischer method with direct electrometric measurement. The method is applicable to products having water contents equal to or greater than 50 mg/kg. For water contents greater than 1000 mg/kg it is preferable to dilute the evaporation residue with anhydrous methanol in accordance with ISO 4276 and titrate an aliquot portion of the diluted solution.

Liquefied anhydrous ammonia for industrial use; Determination of water content; Karl Fischer method

ISO 7109:1985 工业用氨水 105℃蒸发残渣的测定 重量法

A test portion is evaporated in a tared platinum dish and the residue is weighed after drying at 105 2 鳦. The method is applicable to solutions containing not more than 35 % (m/m) ammonia.

Ammonia solution for industrial use; Determination of residue after evaporation at 105 degrees C; Gravimetric method

ISO 7108:1985 工业用氨水 氨含量的测定 滴定法

A test portion is introduced into a solution of boric acid and the solution obtained is titrated with a standard volumetric solution of sulfuric acid in the presence of methyl red as indicator. The method is applicable to solutions containing not more than 35 % (m/m) of ammonia.

Ammonia solution for industrial use; Determination of ammonia content; Titrimetric method

ISO 6920:1984 工业用粗硼酸钠 总的及可溶于碱液的钙和镁含量的测定 滴定法

Crude sodium borates for industrial use; Determination of total and alkali-soluble calcium and magnesium contents; Titrimetric method

ISO 6918:1984 工业用粗硼酸钠 总的及可溶于碱液的钙镁含量的测定 火焰原子吸收光谱法

Crude sodium borates for industrial use; Determination of total and alkali-soluble calcium and magnesium contents; Flame atomic absorption spectrometric method

NAVY DOD-M-82730-1984 4，4-亚甲基双(2，6-二叔丁基苯酚).

This specification covers the minimum requirements for the procurement of a low yolatile, temperature stable antioxidant, 4,4*-methylenebis(2,6-di-tert-butylphenol) (see 6. I ) .

4, 4-METHYLENEBIS (2,6-DI-TERT-BUTYLPHENOL)

ISO 5935:1984 工业用粗硼酸钠 二氧化硅总含量及可溶于碱的二氧化硅含量测定 硅钼酸盐光谱法

Crude sodium borates for industrial use; Determination of total and alkali-soluble silica contents; Molybdosilicate spectrometric method

HG/T 2964-1984 工业硫氢化钠中硫氢化钠和硫化钠含量的测定

Sodium hydrosulphide for industrial use-Determination of the content of sodium hydrosulphide ane sulphide

ISO 7058:1983 工业用磷酸 高溶性硫酸盐含量的测定 还原后滴定法

Phosphoric acid for industrial use; Determination of higher soluble sulfate contents; Titrimetric method after reduction

ISO 7099:1983 工业(包括食品)用磷酸 硫化氢含量的测定 滴定法

Phosphoric acid for industrial use (including foodstuffs); Determination of hydrogen sulfide content; Titrimetric method

NAVY DOD-D-82727-1983 二丁基二锡

This specification covers the minimum requirements for . One grade of dibutyltin dilaurate.

DIBUTYLTIN DILAURATE

ISO 7100:1983 工业(包括食品)用磷酸 钒含量的测定 磷钨钒酸盐光谱法

Phosphoric acid for industrial use (including foodstuffs); Determination of vanadium content; Phosphotungsten vanadate spectrometric method

ISO 6677:1983 工业用六氟硅酸 有效氟含量的测定 蒸馏后电位滴定法

Hexafluorosilicic acid for industrial use; Determination of available fluorine content; Potentiometric method after distillation

ARMY MIL-S-230 C-1983 工业硅粉

This specification covers two grades and four classes oftechnical grade powdered silicon.

SILICON, POWDERED, TECHNICAL