BS EN ISO 11127-4:2020
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Preparation of steel substrates before application of paints and related products. Test methods for non-metallic blast-cleaning abrasives Assessment of hardness by a glass slide test
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04-11-2020
This document specifies a method of assessing of whether a non-metallic blast-cleaning abrasive has a minimum hardness of 6 on Mohs\' scale.This document is a part of the ISO11127 series dealing with the sampling and testing of non-metallic abrasives for blast-cleaning.The types of non-metallic abrasive and requirements on each are contained in the ISO11126 series.The ISO11126 and ISO11127 series have been drafted as a coherent set of International Standards on non-metallic blast-cleaning abrasives. Information on all parts of both series is given in AnnexA. NOTE The test described in this document is a pass/fail test and is not a method for the accurate determination of hardness.
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