GB/T 482-2008 Translated English of Chinese Standard. (GBT 482-2008, GB/T482-2008, GBT482-2008): Sampling of coal seamsThis Standard specifies the sampling of coal seams. This Standard applies to the sampling of lignite, bituminous, and anthracite coal seams. |
Contents
4 | |
General | 5 |
Sampling apparatus | 6 |
Sampling procedure | 7 |
Sample preparation and check of workable seamsample | 8 |
Test of coal seamsample | 10 |
Appendix A Informative Calculation examples | 12 |
Appendix B Informative Coal seamsample report form | 14 |
Normative Columnar legend | 16 |
Common terms and phrases
A.4 Weighted average according to GB according to regulations analysis test coal Analysis test results anthracite coal ash content ash mass fraction ash of workable bottom plate coal and stone Coal Mine Safety Coal or stone coal sample taken coal samples collected Coal seam structure coal seam thickness coal seam-sample report corresponding coal samples dry base ash Float coal samples GB/T Histogram of coal lignite natural stratification nth coal stratification Number of workable open-pit mines piece of spreading Relative difference representativeness of workable results of stratified Sample preparation Sampling location Sampling spacing seam-sample is prepared seam-sample report form seam-sample The coal seam-samples and test seam-samples are taken 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 stratified seam-thickness ____ Table A.1 taken separately true relative density Weighted average ash workable seam