Information technology - Information Resource Dictionary System (IRDS)
framework
The international community has decided to make this standard available only in
the English language version. It has been adopted as a National Standard of
Canada on this basis.
This National Standard of Canada is equivalent to International Standard
ISO/IEC 10027:1990.
1 Scope
This International Standard describes the framework for a number of
International Standards that specify a…
Lead sulfide concentrates — Determination of lead content — Back titration of EDTA after precipitati...
Specifies a lead sulfate precipitation EDTA titrimetric method for the determination of lead content in lead sulfide concentrates. Applicable to all lead sulfide concentrates with lead content in the range from 10 % (m/m) to 80 % (m/m).
Broadcast video tape recorders - Methods of measurement - Part 3: Electrical measurements for analog...
Describes the methods of measurement, test signals and procedures which may apply to characteristics of video recording/playback machines mainly intended for professional use. The contents of the corrigendum of April 1995 have been included in this copy.
Polyester fibre woven tapes - Part 3: Specifications for individual materials - Sheet 1: Tapes woven...
Applies to tapes woven on conventional or shuttleless looms from continuous filament polyester fibres. This sheet gives specific requirements for the number of warp ends, the number of picks, the shrinkage (length and width) and the tensile strength of two types of tape. The contents of the corrigendum of January 1998 have been included in this copy.
Environmental testing - Part 2-44: Tests - Guidance on test T: Soldering
Provides background information and recommendations for writers of specifications containing references to IEC 60068-2-20, IEC 60068-2-54 and IEC 60068-2-58.
The contents of the corrigendum of August 1995 have been included in this copy.
Modified starch — Determination of acetyl content — Enzymatic method
Applies to modified starch, both granular and soluble in cold water. The methods specified enable to measure total and free acetyl contents; bound acetyl content is calculated as the difference of the two values. Total content is determined by heating the sample with dilute hydrochloric acid and converting the acetate with adenosine-5-triphosphate (ATP) and coenzyme A (CoA) to acetyl-CoA. The…
Plastics — Polyamides — Accelerated conditioning of test specimens
The method described is based on storing the test specimens in an atmosphere of (70 ± 1) °C and (62 ± 1) % relative humidity (psychrometric temperature difference of (10 ± 0,3) °C), until moisture absorption by the specimen has reached at least 95 % of its equilibrium level. It is applicable to polyamides and copolyamides in grades containing fillers and other additives, but not to grades…
Tea and instant tea in solid form — Determination of caffeine content — Method using high-performanc...
The method specified is based on extracting the caffeine from a test portion with water at 90 °C in the presence of magnesium oxide, filtration followed by determination of the caffeine content by HPLC with UV detection. Applies to teas and instant teas with a caffeine content of greater than 0,3 % (m/m).
