Status
All Active Abolish Replaced Incoming Convert to industry standard
Category
Number Year
Name

GB/T 23561.4-2009 《Methods for determining the physical and mechanical properties of coal and rock - Part 4: Methods for calculating the porosity of coal and rock》 Related products

This standard applies to the calculation of porosity of coal and rock, including the determination of total porosity and effective porosity. The standard specifies the terms, definitions and methods for the calculation of porosity of coal and rock, and is suitable for specimens that do not collapse and are stable in volume. Through accurate measurement of porosity, it provides necessary technical support for coal mining and geological engineering, ensuring the safety of engineering activities and the accuracy of material characteristic analysis.

This summary is not the original standard text and is for reference only. For accurate information, please obtain it through official channels.
Status Active
CCS D04
ICS 73.010
Release Date 2009-04-08 00:00:00
Implementation Date 2009-12-01 00:00:00
Sort Filter
No information related to was found
Extended reading