Gel permeation chromatography (GPC) - N,N-Dimenthylacetamide (DMAC) as eluent1 Scope This document specifies the determination of the molar mass distribution and the average molar mass values Mn (number average) and Mw (weight average) of polymers that are soluble in DMAC (N,N Dimethylacetamide) by gel permeation chromatography (GPC). NOTE Also known as size exclusion chromatography (SEC). Even though the chromatograms obtained show good repeatability, it is possible that this method cannot be used with certain polymer types

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ISO/TS 21564  on terminology resource map quality measures in healthcare is useful for:

This document specifies methods that yield a binary result and are used for the determination in food or food products (including seeds of food crops) of the presence of molecular biomarkers

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The following subjects are dealt with in EN 1993-3-2:

This British Standard is the UK implementation of EN ISO 22476-4:2012

BS EN ISO 18279:2003 covers only imperfections that can occur in connection with brazing without the effect of any additional service loads

BS 721-1 walks you through aspects such as general Information on worm gear elements