T/CGA 030-2022 Active Group standards

T/CGA 030-2022 Gold industry cyanide chemical analysis methods for determination of thiocyanate spectrophotometric method

Publish Date: 2022-01-18 Implement Date: 2022-03-01 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/CGA 030-2022

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: \nMining industry

ICS Name: Non-ferrous metals comprehensive

Publish Date: 2022-01-18

Implement Date: 2022-03-01

Scope

Scope: This document specifies the method for determining thiocyanate in cyanide slag in the gold industry. This document is applicable to the determination of thiocyanate in cyanide slag in the gold industry. For the determination scope of this document, when the sample weight is 1 g and the colorimetric sampling volume is 40 mL, the detection limit of thiocyanate is 17.6 mg/kg, the lower limit of determination is 70.4 mg/kg, and the upper limit of determination is 2,500 mg/kg; Main technical content: The main technical content of this standard specifies and requires the sampling quantity of the two methods, the removal of interfering elements, the volume of the dispensing solution, the addition quantity of reagents, the amount of colorimetric reagents, and the precision and accuracy of the method, etc.