Plastics. Polyols for use in the production of polyurethane. Determination of degree of unsaturation by microtitration1 Scope This International Standard specifies a microtitration method to measure the degree of unsaturation in polyether polyols used in the production of polyurethanes. It is based on the reaction of mercuric acetate with double bonds in the polyol. It does not apply to compounds in which the unsaturation is conjugated with carbonyl, carboxyl or nitrile groups. The product being measured must be essentially dry and free of inorganic salts, especially

Periodic benchmarking

BS AU 209-1a on locking systems for passenger cars is useful for:

Magnesia preformed insulation slabs manufacturers

cutting and related processes are covered by ISO 7289

types of coatings and coating mass

d)      In Table 3 the length tolerances for exact length were changed

BS EN IEC 60665 implementation allows users to bring fresh air from outside and into the enclosed space and vent out the air which is inside

BS EN 55016-1-3 gives an overview of the absorbing clamp measurement method including the instrumentation required for this method and the calibration and validation methods for the instrumentation

Who is ISO/IEC 29109-5— Conformance testing methodology for

BS 4427-3 provides you with a spectrometric method for the determination of the iron content of condensed phosphates for industrial use (including foodstuffs)

Support existing sector and other policies

6 Deciding how to do it