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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The method can be applied for the characterization of substrates and coatings

BS EN 3745-504 ensures standardization and uniformity in the testing which makes the performance of these components consistent

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ISO 20776‑1 on broth microdilution for MIC distribution determination is useful for: