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Standard Practice for Preparing Coal Samples for Microscopical Analysis by Reflected Light (Includes all amendments And changes 11/12/2019).
Automaticky přeložený název:
Standardní praxe pro přípravu vzorků uhlí pro mikroskopické analýze odraženým světlem
NORMA vydána dne 1.6.2011
Označení normy: ASTM D2797/D2797M-11a
Poznámka: NEPLATNÁ
Datum vydání normy: 1.6.2011
Kód zboží: NS-21508
Počet stran: 5
Přibližná hmotnost: 15 g (0.03 liber)
Země: Americká technická norma
Kategorie: Technické normy ASTM
Keywords:
Microscopic examination--coal, Anthracite, Light analysis, Reflectance and reflectivity--coal, Reflected light analysis, Specimen preparation (for testing)--coal/coke, 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 D2798) and for microscopical determination of the volume percent of physical components of coal (Test Method D2799). |
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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 either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard. 1.3 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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