GB/T 482-2008: Translated English of Chinese Standard. (GBT 482-2008, GB/T482-2008, GBT482-2008): Sampling of coal seams
https://www.chinesestandard.net, Feb 9, 2020 - Technology & Engineering - 16 pages
This Standard specifies the sampling of coal seams. This Standard applies to the sampling of lignite, bituminous, and anthracite coal seams.
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Sample preparation and check of workable seamsample
Test of coal seamsample
Appendix A Informative Calculation examples
Appendix B Informative Coal seamsample report form
Normative Columnar legend
Common terms and phrases
according to GB according to regulations Analysis test results Appendix ash content ash mass fraction ash of workable bottom plate Calculation coal and stone Coal Mine Safety Coal or stone coal quality coal sample taken coal samples collected coal seam thickness coal seam-sample report determine documents dry base ash Example fourth GB/T Histogram of coal label least less leveled lignite measurement natural stratification nth coal stratification Number of workable plate of sampling reference Relative difference representativeness of workable requirements results of stratified roadway Sample preparation Sampler Sampling location seam-sample report form seam-samples and test seam-samples are taken seam-samples include seam-thickness and dry spreading cloth Standard stone band stope face stratification and stone stratification coal stratification of coal stratification or stone stratified seam stratified seam-sample stratified seam-thickness ____ Table A.1 taken according taken separately third true relative density Weighted average ash workable seam workable seam-sample