Textiles — Universal system for designating linear density (Tex System)
Gives the principles and recommended units of the Tex System for the expression of linear density and includes conversion tables for calculation the Tex values of numbers or counts in other systems together with a statement of the procedure for the implementation of the Tex System in trade and industry. The Tex System is applicable to all kinds of textile fibres, intermediate products (e.g. tops…
Essential oils — Determination of freezing point
The determination consists in slow and progressive cooling of the essential oil and observation of the variations in temperature as the oil passes from the liquid to the solid state. The apparatur for determination of freezing point consists of a wide-mouthed container of about 500 ml capacity, provided with a bored cork or rubber stopper into which a stout-walled test tube is inserted. Another…
Information processing — Unpunched paper tape — Specification
Defines characteristics of paper tape to be used for data interchange, when the tape is in the unpunched condition. To be used in conformance with ISO/R 1974 and 2144.
Building materials — Determination of calorific potential
Specifies a test method. In order to obtain a complete combustion when the characteristic to be determined is relatively low it may be necessary to add a very combustible substance, to use an envelope made of a very combustible material or to use any other method that ensures complete combustion without compromising the precision of the test.