Steel and iron — Determination of sulfur content — Infrared absorption method after combustion in an...
The method is applicable to sulphur contents between 0,002 % (m/m) and 0,10 % (m/m). Specifies principle, reagents and material, apparatus, sampling, procedure, expression of results and test report. Annex A gives additional information on the international cooperative tests. Annex B represents the precision date graphically. Annex C deals with induction furnaces and infrared sulfur analysers.
Surface active agents — Sulfated ethoxylated alcohols and alkylphenols — Determination of total acti...
A test portion is boiled under reflux with ethanol in the presence of sodium sulphate. The solution is filtrated, the filtrate evaporated, and the residue weighed. Any sodium chloride present is determined by dissolution of the residue in aqueous acetone and titration with a standard volumetric silver nitrate solution. The mass of the residue is corrected for the sodium chloride content.
Methods of measurement on radio receivers for various classes of emission. Part 3: Receivers for amp...
Applies to radio receivers for the reception of amplitude-modulated sound broadcasting emissions. Deals mainly with measurements using radio-frequency signals applied to the antenna terminals of the receiver, or induced in a magnetic antenna. Is intended to be read in conjuction with IEC 60315-1. The contents of the corrigendum of April 1994 have been included in this copy.
This specification applies to pasteurized or sterilized cow's milk and cream
with various fat contents. It is intended to be used by food services in
procurement of food.
