T/NMRJ 018-2024 Active Group standards

T/NMRJ 018-2024 Solid waste determination of cyanide using isonicotinic acid-pyrazinamide spectrophotometry

Publish Date: 2024-12-30 Implement Date: 2024-12-30 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/NMRJ 018-2024

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: Environmental protection

ICS Name: Integrated waste management

Publish Date: 2024-12-30

Implement Date: 2024-12-30

Scope

Scope: This document specifies the spectrophotometric method using hydrazide-pyrazolone for the determination of easily released cyanides and total cyanides in solid waste. This document is applicable to the determination of easily released cyanides and total cyanides in solid waste. The detection limit for easily released cyanides and total cyanides in the leachate of solid waste is 0.005 mg/L, and the determination limit is 0.020 mg/L. Main technical content: This method specifies the spectrophotometric method for the determination of easily released cyanides and total cyanides in solid waste. This standard is applicable to the determination of easily released and total cyanides in solid waste. The technical highlights of this standard involve the preparation method of alkaline solutions for easily released cyanides and total cyanides in solid waste, which is carried out in accordance with relevant regulations, including the determination of extraction media and time conditions. The methodological research is based on the "Water Quality - Determination of Cyanides - Capacity Method and Spectrophotometry" (HJ 484-2009).