Magnesium and magnesium alloys — Determination of copper content — Oxalyldihydrazide photometric met...
The method is applicable to the determination of copper content between 0,002 and 0,4 % (m/m) in magnesium and magnesium alloys other than alloys containing zirconium. Specifies principle and procedure of the method, reagents, apparatus, sampling, expression of results and test report.
Aluminium and aluminium alloys — Determination of copper content — Oxalyldihydrazide photometric met...
The method is applicable to the determination of copper content between 0,002 and 0,8 % (m/m) in magnesium and magnesium alloys. The method is not completely applicable in the special case of alloys with silicon contents exceeding 1 % (m/m), for which it should be modified as desribed in the annex.
Safety of household and similar electrical appliances - Part 1: General requirements
This second edition of IEC 60335-1 (1976) and its 6 amendments, is applicable only to the IEC 60335-2-57 and 60335-2-63. Is not applicable to the other parts 2.
The contents of the corrigendum of February 1993 have been included in this copy.
First supplement - Dimensions of spindle ends for manually operated electronic components
Contains dimensions and tolerances for spindle ends made to original inch dimensions.
The contents of the corrigendum of September 1979 have been included in this copy.
Ammonium hydrogen carbonate for industrial use (including foodstuffs) — Determination of total carbo...
Specifies the treatment of a test portion with an excess of carbonate-free sodium hydoxide solution. Elimination of ammonia by boiling. Precipitation of carbon dioxide by an excess of barium chloride. Neutralization with hydrochloric acid solution using thymolphthalein as indicator. Addition of an excess of standard volumetric hydrochloric solution and back-titration with standard volumetric…
Wool — Determination of dichloromethane-soluble matter in combed sliver
Wool textiles may contain solvent-extractable oils and fats. The amount of these substances present depends on the stage of manufacture, and its estimation is important for determining the clean wool content of a sample. The method is only applicable to 100 % wool products. It may give misleading results if applied to products in which fibres other than wool are present.
The method is applicable to undyed wool in any form, for example loose fibre, sliver, yarn or fabric. It is also applicable to dyed wool when the amount of dye extracted during the test does not interfere with the determination of the end-point of the titration. The determined value is expressed as a percentage by mass.
Wood — Determination of moisture content for physical and mechanical tests
Specifies a method that determines, by weighing, the loss in mass of the test piece on drying to constant mass. Calculation of the loss in mass as a percentage of test piece mass after drying. Reference is made to ISO 3129.
Wood — Determination of density for physical and mechanical tests
The method described determines the moisture content at the time of test and in the absolutely dry condition as well as the mass ratio in the absolutely dry condition to volume of the test piece with moisture content greater than or equal to the fibre saturation point.
