Projekta Nr.ISO 7404-3:2025
Nosaukums<p class="MsoBodyText"><span lang="EN-GB">This document specifies a method for determining the proportions of the maceral groups (and the minerals, if desired) in coals. It is concerned only with determinations made on polished particulate blocks using incident white light. For lower-rank coals, the additional use of the fluorescence mode is necessary to identify liptinites.</span></p>
Reģistrācijas numurs (WIID)87002
Darbības sfēra<p class="MsoBodyText"><span lang="EN-GB">This document specifies a method for determining the proportions of the maceral groups (and the minerals, if desired) in coals. It is concerned only with determinations made on polished particulate blocks using incident white light. For lower-rank coals, the additional use of the fluorescence mode is necessary to identify liptinites.</span></p>
StatussStandarts spēkā
ICS grupa73.040