GB/T 40272-2021
Paper,board,pulps and cellulose nanomaterials—Determination of acid-soluble magnesium,calcium,manganese,iron,copper,sodium and potassium (English Version)

Standard No.

GB/T 40272-2021

Language

Chinese, Available in English version

Release Date

2021

Published By

国家市场监督管理总局、中国国家标准化管理委员会

Latest

GB/T 40272-2021

Scope

This standard specifies the determination of acid-soluble magnesium, calcium, manganese, iron, copper, Sodium and Potassium methods. This standard applies to paper, paperboard, pulp and cellulose nanomaterials. The detection limit of magnesium in this standard is 0.4 mg/kg; the detection limit of calcium is 0.2 mg/kg; the detection limit of manganese is 0.

GB/T 40272-2021 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
• ISO 1762:2001 Paper, board and pulps - Determination of residue (ash) on ignition at 525 °C

GB/T 40272-2021 history

• 2021 GB/T 40272-2021 Paper,board,pulps and cellulose nanomaterials—Determination of acid-soluble magnesium,calcium,manganese,iron,copper,sodium and potassium