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Repeatability of Plastometer and Dilatometer Tests of Coal.

Authors
Wu-WRK
Source
NTIS: PB 192 305 :27 pages
Link
NIOSHTIC No.
10009032
Abstract
This Bureau of Mines report presents a statistical study of the repeatabilities of coal-plasticity parameters obtained in the tests with the gieseler plastometer and the audibert-arnu and hoffman dilatometers. Repeatability is expressed in terms of one or two standard deviations for the differences between duplicates. The statistical method employed here is summarized. Results are tabulated for the temperature and nontemperature parameters of the three tests.
Publication Date
19700101
Document Type
IH; Report of Investigation;
Fiscal Year
1970
NTIS Accession No.
PB-192305
NTIS Price
A03
Identifying No.
RI 7394
Source Name
NTIS: PB 192 305
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