GB/T 42035-2022 Active National standards

GB/T 42035-2022 Determination of pore size distribution of coal and rock—Nuclear magnetic resonance

Publish Date: 2022-10-12 Implement Date: 2022-10-12 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 42035-2022

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Coal analysis methods

ICS Name: \nCoal

Publish Date: 2022-10-12

Implement Date: 2022-10-12

Pages: 16 pages

Scope

This document specifies the principles, experimental steps, calculation formulas, and data processing for determining the pore size distribution of coal and rocks using nuclear magnetic resonance (NMR) methods. This document is applicable to the determination of pore size distribution in medium- and high-rank coals and sandstones, and may also be used as a reference for low-rank coals and shale.

Development Information

Word Count: 34 Thousand words Pages: 16 pages

Referenced Standards

GB/T 23561.3-2009 Methods for determining the physical and mechanical properties of coal and rock—Part 3:Methods for determining the block density of coal and rock GB/T 29171-2012 Rock capillary pressure measurement GB/T 29172-2012 Practices for core analysis GB 474-1996 Preparation of coal sample GB/T 474-2008 Method for preparation of coal sample GB/T 21650.1-2008 Pore size distribution and porosity of solid materials by mercury porosimetry and gas adsorption—Part 1:Mercury porosimetry SY/T 6490-2014 Laboratory measurement specifications for nuclear magnetic resonance parameters of rock samples GB/T 21650.1-2026 Evaluation of pore size distribution and porosity of solid materials by mercury porosimetry and gas adsorption—Part 1:Mercury porosimetry

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