MT 172-1987 English PDF

US$159.00 · In stock
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MT 172-1987: Expansion of rock stress determination method

MT 172: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
MT 172-1987	159	Add to Cart	2 days	Expansion of rock stress determination method
MT/T 172-1987	79	Add to Cart	3 days	(Rock expansion stress measurement method)	Valid

Similar standards

GB/T 15224.3   GB/T 15224.1   GB/T 5751   MT/T 561   MT/T 596   MT/T 560   

Basic data

Standard ID: MT 172-1987 (MT172-1987)
Description (Translated English): Expansion of rock stress determination method
Sector / Industry: Coal Industry Standard
Classification of Chinese Standard: D20
Word Count Estimation: 3,394
Date of Issue: 11/18/1987
Date of Implementation: 12/10/1987
Summary: This standard applies to the determination of rock expansion stress. Arising after rock physical and chemical reaction with water volume increases with time phenomenon, at this time the specimen to maintain a constant volume of the pressure that is needed for the expansion stress.

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