Classification of environmental conditions. Part 3: Classification of groups of environmental parame...
Classifies groups of environmental parameters and their severities to which a product is subjected when installed aboard a ship. Ships where products may be permanently or temporarily installed include ships propelled by mechanical means and ships not propelled by mechanical means. The contents of the corrigendum of September 1987 have been included in this copy.
Water for analytical laboratory use — Specification and test methods
Specifies the requirements for three grades for the analysis of inorganic chemicals. Not applicable to organic trace analysis, analysis of surface-active agents and biological or medical analysis. The material shall be a clear, colourless liquid as assessed by inspection. Classifies according to the content: free from dissolved or colloidal ionic and organic contaminants, very low inorganic,…
Iron ores — Determination of fluorine content — Ion-selective electrode method
The method ist applicable to a concentration range of 0,005 to 1,0 % (m/m) of fluorine in natural iron ores, and iron ore concentrates and agglomerates including sinter products. Specifies principle, reagents, apparatus, sampling and samples, procedure, expression of results, and test report. ISO 4693 includes three annexes.
International Electrotechnical Vocabulary (IEV) - Part 604: Generation, transmission and distributio...
The contents of the corrigendum of July 1987 have been included in this copy. It has the status of a horizontal standard in accordance with IEC Guide 108.
Guide for test procedure for the measurement of loss tangent of coils and bars for machine windings
Applies to a method of measuring dielectric loss properties of the insulation system of the slot portions of new coils or bars for rotating electrical machines having rated voltage UN of 5 kV and above.
The contents of the corrigendum of July 1987 have been included in this copy.
Petroleum products and hydrocarbons — Determination of sulfur content — Wickbold combustion method
The procedure specified may be applied to products having contents in the range 1 to 1O OOO mg/kg and is particularly suitable for distillates with less than 3OO mg/kg. Test samples which are viscous, highly aromatic, or of high content may be first diluted with a sulfur-free solvent. The procedure can be used for natural and refinery gases, also for substances supplied to the burner in the…
Dried milk — Determination of sodium and potassium contents — Flame emission spectrometric method
Covers all types of dried milk. The sampling shall be made as specified in ISO 707. A table gives information as to preparating and composition of 7 different sodium and potassium reference solutions.
Caseins and caseinates — Determination of nitrate and nitrite contents — Method by cadmium reduction...
The principle of determination consists in dispersing the casein or caseinate in warm water, precipitating the fat and proteins, filtering and reducing the nitrate to nitrite in a portion of the filtrate by means of copperized cadmium. A figure shows the apparatus for nitrate reduction.
