Copper and copper alloys — Code of designation — Part 1: Designation of materials
The material designations shall be based on the chemical composition limits. All material designations shall have the prefix "ISO". International chemical symbols shall be used for the designation of the base element and the major alloying elements, followed by letters indicating the metal grade or by numbers indicating the nominal alloy content. Cast alloys shall have the prefix G.
Steel and cast iron — Determination of manganese content — Spectrophotometric method
The method is applicable to products having manganese contents between 0,001 and 4 % (m/m). Gives principle, reagents, apparatus, sampling, procedure, expression of results and test report.
Steel and cast iron — Determination of sulphur content — Combustion titrimetric method
Describes a method determining sulphur after combustion of the test portion in a current of oxygen. Specifies principle, reagents, apparatus, sampling, procedure, expression of results and test report.
This second edition cancels and replaces the first edition (i.e. ISO 316-1975). Should be read in conjunction with ISO 4297. Specifies principle, reagents, apparatus, sample, procedure and expression of results.
Instant tea — Determination of free-flow and compacted bulk densities
The method for the determination of the free-flow bulk density consists in pouring a sample from a specified funnel into a specified receptacle of known volume, and weighing the contents of the receptacle. The determination of the compacted bulk density consists in determining of the volume of a given mass of the product after a fixed number of taps (usually 100) in a jogging volumeter.
Methyl chloride for industrial use — Determination of impurities — Gas chromatographic methods
Specifies a method, the principle of which is based on the analysis of a vaporzed test portion and determination of the contents of impurities. The calibration factors used for this determination are obtained by analysis of external methyl chloride calibration mixtures containing known quantities of the impurities under consederation.
Pulps — Determination of manganese content — Sodium periodate photometric and flame atomic absorptio...
Specifies two methods based on the ashing of the pulp and the disolution of the ash in hydrochloric acid, both of them being applicable to all kinds of pulp.
