Cookies
Potřebujeme váš souhlas k využití jednotlivých dat, aby se vám mimo jiné mohly ukazovat informace týkající se vašich zájmů. Souhlas udělíte kliknutím na tlačítko „OK“.
ASTM D4596-09(2015)
Standard Practice for Collection of Channel Samples of Coal in a Mine
Automaticky přeložený název:
Standardní praktiky pro shromažďování vzorků Channel uhlí v dole
NORMA vydána dne 1.9.2015
Informace o normě:
Označení normy: ASTM D4596-09(2015)
Poznámka: NEPLATNÁ
Datum vydání normy: 1.9.2015
Kód zboží: NS-615805
Počet stran: 3
Přibližná hmotnost: 9 g (0.02 liber)
Země: Americká technická norma
Kategorie: Technické normy ASTM
Kategorie - podobné normy:
Anotace textu normy ASTM D4596-09(2015) :
Keywords:
channel, coal, mine, rank, sample collection, sampling,, ICS Number Code 73.040 (Coals)
Doplňující informace
| Significance and Use | ||||||||||
|
4.1 A properly collected face channel sample that includes the total coal bed interval provides a sample that is a representative cross section of the coal bed at the point of sampling. Channel samples are taken for subsequent testing needed for evaluation of coal quality and characterization for commercial evaluations, for planning of mining operations to maintain coal quality, for the determination of coal rank in accordance with Classification D388, and for geologic coal resource studies. Note 1: Because of the potential for lateral variability, a
sample may not represent the quality of the coal bed at another
sample point. The reliability of the data generated from channel
samples is dependent on the number and spacing of the sample points
and the variability of the coal characteristics in a given
area.
Note 2: Sampling of the mine product for these purposes is
unsatisfactory because of contamination of the product with
out-of-seam material, selective mining of parts of a seam,
inability to obtain samples from one or more specific locations in
the mine, or other incompatibility of the purpose of sampling with
the mining practice. Conversely, channel samples should not be used
for evaluation of the quality of commercial shipments of the mine
product, which should be sampled in accordance with Methods
D2234/D2234M.
|
||||||||||
| 1. Scope | ||||||||||
|
1.1 This practice describes procedures for collecting a coal sample from a channel extending from top to bottom in the face of a coal seam in a mine. 1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.3 This standard does not purport to address all of the safety concerns, if any, 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. For specific precautionary information, see Note 2. |
||||||||||
| 2. Referenced Documents | ||||||||||
|
Doporučujeme:
