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This part of ISO 5667 provides guidance on procedures for the preservation
This method assesses the properties of textile fabrics in response to flame contact under controlled conditions
for a given period of time
it is important to note that website standards are never static
that allows debugging
Methods for the petrographic analysis of coals - Method of determining microlithotype, carbominerite and minerite composition has-digital This part of ISO 56671 Scope This document specifies a method, using a graticule with 20 crossline intersections, for determining the proportions of microlithotypes, carbominerite and minerite in coals. It applies only to determinations made on polished particulate blocks using reflected white light (about 400 nm to 700 nm). Additional blue, blue violet or UV light excitation (365 nm to 440 nm) for better identification of liptinite in fluorescence may be used especially
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