ASTM D2797/D2797M-21a PDF
Standard Practice for Preparing Coal Samples for Microscopical Analysis by Reflected Light
Standard Practice for Preparing Coal Samples for Microscopical Analysis by Reflected Light
- Статус документа:
- Действующий
- Формат:
- Электронный (PDF)
- Дата публикации:
- 15 сентября 2021 г.
- SKU:
- ASTM D2797/D2797M-21a
Abstract
Significance and Use 4.1 Briquets of granular bituminous coals and anthracite prepared in accordance with the laboratory procedures of this practice will have flat, scratch-free surfaces suitable for examination with a microscope using ref...
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