Download or read book GB T 19494 2 2023 Translated English of Chinese Standard GB T 19494 2 2023 GBT19494 2 2023 written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2024-02-16 with total page 43 pages. Available in PDF, EPUB and Kindle. Book excerpt: This document specifies the precision of coal sample preparation, specimen composition, division, reduction, mixing and air-drying, as well as the preparation of various coal samples, coal sample for back-check and the design requirements for sample preparation equipment. This document is applicable to lignite, bituminous coal and anthracite coal.

Download or read book GB T 19494 1 2023 Translated English of Chinese Standard GB T 19494 1 2023 GBT19494 1 2023 written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2024-05-15 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: This document specifies the general requirements and precision of mechanized coal sampling, the establishment of sampling schemes, the moving coal flow sampling method and stationary coal sampling method, as well as packaging and marking of coal samples, and sampling reports. This document is applicable to lignite, bituminous coal and anthracite coal.