GB/T 24992-2010 (English Version) PDF

Standard No.: GB/T 24992-2010
Language: Chinese, Available in English version
Release Date: 2010
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Latest: GB/T 24992-2010

Scope: CAUTION: Personnel using this standard should have practical experience in formal laboratory work. This section does not address all possible security issues. It is the user's responsibility to take appropriate safety and health measures and ensure compliance with the conditions stipulated in the relevant national laws and regulations. This standard specifies the method for the determination of arsenic content in pulp, paper and board. This standard applies to all kinds of pulp, paper and cardboard that can be digested by nitric acid wet method. This standard provides two methods for the determination of arsenic content, namely hydride atomic fluorescence spectrometry and silver salt colorimetry. The detection limit depends on the detection instrument used. This standard uses a double-channel atomic fluorescence spectrometer to measure, and the detection limit is about 0.01mg/kg. The detection limit of the silver salt colorimetric method is 0.5mg/kg.

GB/T 24992-2010 Referenced Document

GB/T 450 Paper and board.Sampling for testing and identification of machine and cross direction,wire side and felt side
GB/T 462 Determination of moisture content of analytical samples of paper, paperboard and pulp*， 2023-09-07 Update
GB/T 6682 Water for analytical laboratory use.Specification and test methods
GB/T 740 Pulps-Sampling for testing