Chemical analysis of light metals and their alloys -- Statistical interpretation of inter-laboratory trials
适用范围：This Technical Report constitutes an attempt to explain the numerical results of a statistical examination in the simplest possible way and to show how statistical results can be used in laboratory pra...
发布日期：1981-06-01 实施日期：1981-06-01
Chemical analysis of lead and lead oxides. Colorimetric determination of iron.
实施日期：1957-04-01
Chemical analysis of lead. Determination of silver and gold.
实施日期：1958-06-01
Aluminium and aluminium alloys -- Determination of magnesium -- Atomic absorption spectrophotometric method
适用范围：The method is applicable to products having magnesium contents between 0,01 and 5 % (m/m). Specifies principle, reagents, apparatus, sampling, procedure, expression of results and test report.
发布日期：1977-05-01 实施日期：1977-05-01
Phosphoric acid for industrial use (including foodstuffs) -- Determination of calcium content -- Flame atomic absorption method
适用范围：Applicable to products having a Ca content of more than 50 mg/kg. Soluble SiO2 present in the solution at levels lower than 5 g/ml does not interfere. The principle consists in addition, to a hydrochlo...
发布日期：1976-12-01 实施日期：1976-12-01
Fruit juice and vegetable juice. Determination of the zinc, copper and iron contents. Flame atomic absorption spectrometric method.
实施日期：1982-06-01
Water quality. Determination of ammonium. Part 1:Manual spectrometric method first edition
发布日期：1984-01-01 实施日期：1984-01-01
Reagents for chemical analysis. General test methods. Specifications.
Unalloyed copper containing not less than 99,90 % of copper -- Determination of copper content -- Electrolytic method
适用范围：The method is applicable to unalloyed coppers not containing elements providing insoluble residues in the electrolytic solution. Annex A gives test portions of test sample and of copper precipitate. An...
发布日期：1976-11-01 实施日期：1976-11-01
Fruit, vegetable and derived products. Determination of the arsenic content.
Chemical analysis of manganese ores. Spectrophotometric determination of cobalt.
实施日期：1966-01-01
Phosphoric acid and sodium phosphates for industrial use (including foodstuffs) -- Determination of fluorine content -- Alizarin complexone and lanthanum nitrate photometric method
适用范围：Applicable to products the F content of which is equal to or more than 0.5 mg/kg. Specifies the separation of the element from a test portion by steam distillation in a phosphoric acid medium. Formatio...
发布日期：1976-08-01 实施日期：1976-08-01
Iron ores. Spectrophotometric determination of vanadium.
实施日期：1984-10-01
Chemical analysis of lead. Spectrophotometric determination of bismuth.
实施日期：1975-02-01
Cryolite, natural and artificial, and aluminium fluoride for industrial use -- Determination of sulphur content -- X-ray fluorescence spectrometric method
适用范围：Covers a method, the orinciple of which consists in preparing tablets from a mixture of the test portion and a binder and measuring the intensity of the K line emitted by the sulphur. The measured inte...
发布日期：1979-07-01 实施日期：1979-07-01
Ethanol for industrial use -- Methods of test -- Part 3: Estimation of content of carbonyl compounds present in small amounts -- Photometric method
适用范围：The method is applicable to products having carbonyl compounds contents between 0.00025 % (m/m) and 0.01 % (m/m). The principle is based on reaction in acid medium of the carbonyl compounds in a test p...
发布日期：1981-12-01 实施日期：1981-12-01
Steel and iron -- Determination of total silicon content -- Reduced molybdosilicate spectrophotometric method -- Part 2: Silicon contents between 0,01 and 0,05 %
适用范围：Corresponds part 1 (excluding the silicium contents). Specifies principle, reagents, apparatus, sampling, procedure, expression of results and test report. An annex gives additional information on the ...
发布日期：1988-11-01 实施日期：1988-11-01
Nitrogen dioxyde content of the atmosphere (griess saltzman reaction).
Natural mineral phosphates and fertilizers. Spectrophotometric determination of phosphoric anhydride (molybdenum blue method).
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