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Standard Practice for Preparing Coal Samples for Microscopical Analysis by Reflected Light
Automaticky přeložený název:
Standardní praxe pro přípravu vzorků uhlí pro analýzu mikroskopického odraženým světlem
NORMA vydána dne 1.10.2007
Označení normy: ASTM D2797-07
Poznámka: NEPLATNÁ
Datum vydání normy: 1.10.2007
Kód zboží: NS-21504
Počet stran: 5
Přibližná hmotnost: 15 g (0.03 liber)
Země: Americká technická norma
Kategorie: Technické normy ASTM
Keywords:
ICS Number Code 73.040 (Coals)
Significance and Use | ||||||||||||
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 reflected light illumination. The polished surfaces of briquettes prepared by this practice will contain particles representative of the original gross sample. Samples prepared by this practice are used for microscopical determination of the reflectance of the organic components in a polished specimen of coal (Test Method D 2798) and for microscopical determination of the volume percent of physical components of coal (Test Method D 2799). |
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1. Scope | ||||||||||||
1.1 This practice covers laboratory procedures for the preparation of granular samples of bituminous coal and anthracite samples for examination with a microscope using reflected light illumination. It does not apply to the preparation of oriented blocks of coal. 1.2 The values stated in SI units shall be considered as standard; and inch-pound units shall be considered as approximate equivalents. This standard does not purport to address the safety concerns associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. |
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2. Referenced Documents | ||||||||||||
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