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.
Dried milk — Determination of nitrate content — Method by cadmium reduction and spectrometry (Screen...
Describes a method, the principle of which consists in dissolving the dried milk in water, precipitating the fat and proteins, filtering and reducing the nitrate to nitrite in a portion of the filtrate by means of zinc powder and cadmium ion.
Determination of plutonium content in plutonium dioxide (PuO2) of nuclear grade quality — Gravimetri...
The plutonium dioxide has to contain less than 0,5 % of non-volatile impurities. The content of these impurities shall be measured and a correction made to allow for them. The method is used to cross-check accountancy analyses of plutonium dioxide for safeguard purposes. Principle of the method, interferences, reagents, apparatus, procedure and expression of results are described.
Installation Code for Lightning Protection Systems
1. Scope
1.1 This Standard covers the protection from lightning of buildings such as residences, places of public assembly, and buildings of a general industrial nature, including structures with explosive or highly flammable contents. It does not cover th e protection of electrical transmission and distribution systems, and communications systems.
1.2 This Standard also contains a…
Specification of requirements for ripe, dry pods of Ceratonia siliqua Linnaeus, such as odour, taste, freedom from living insects and other pests, damaged carobs (see annex A), extraneous matter, moisture content (see annex B); further sampling, methods of test, packing and marking.
