ASTM D4422-19 Ungültige

Detailinformationen

Bezeichnung: ASTM D4422-19

Ausgabedatum: 01.01.2019

Seiten: 2

Anmerkung: Ungültige

Land: Amerikanische technische Norm

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Annotation

Keywords:
Crush the laboratory sample to pass a 6.3 mm sieve. If the quantity exceeds 2.3 kg, divide the sample to obtain about 2.3 kg and crush this fraction to pass a 850 µm (No. 20) sieve. Further divide the sample to obtain a portion of approximately 200 g and crush to pass a 250 µm (No. 60) sieve. Divide again to obtain approximately 50 g. This is the analysis sample which is dried to constant weight at 110 °C +- 5 °C., ash, petroleum coke,, ICS Number Code 73.040 (Coals)