T/SXCIES 003-2023 Active Group standards

T/SXCIES 003-2023 The method for determining the true density of coal ash slag

Publish Date: 2024-01-17 Implement Date: 2024-02-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: T/SXCIES 003-2023

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: -

ICS Name: \nCoal

Publish Date: 2024-01-17

Implement Date: 2024-02-01

Scope

Main Technical Content: Methods for Determining the True Relative Density of Coal Ash and Slag 1 Scope This document specifies the terms and definitions, immersion method, and gas expansion displacement method for determining the true relative density of coal ash and slag. It applies to coal ash generated during coal combustion and gasification ash generated during coal gasification. 2 Normative Reference Documents The following documents are essential for this document through normative reference. Among them, the referenced documents with a specified date only apply to the version corresponding to that date; the latest version (including all amendments) of the unspecified date referenced documents applies to this document. - GB/T 212: Methods for Industrial Analysis of Coal - GB/T 217: Methods for Determining the True Relative Density of Coal 3 Terms and Definitions The following terms and definitions apply to this document. 3.1 Coal Ash and Slag Coal ash and slag include combustion ash and gasification ash. Combustion ash refers to the ash formed after high-temperature combustion of coal, and gasification ash is the solid residue generated after coal gasification. 3.2 True Relative Density The ratio of the mass of coal ash and slag to the mass of water or gas of the same volume at room temperature, reflecting the true density of coal ash and slag. 4 Immersion Method 4.1 Principle Using sodium dodecyl benzene sulfonate solution as the immersion agent, the coal ash and slag sample is completely immersed and settled in a density bottle, and the gas adsorbed in the pores is removed. The true relative density of the coal ash and slag is calculated based on the mass of water discharged from the sample with the same volume. 4.2 Reagents and Materials 4.2.1 Sodium Dodecyl Benzene Sulfonate (CAS: 25155-30-0, chemical purity). 4.2.2 Sodium Dodecyl Benzene Sulfonate Solution (immersion agent): Chemical purity, 20 g/L. Weigh 20 g of sodium

Development Information

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