HJ 631-2011
Soil. Determination of exchangeable acidity by barium chloride extraction. titration method (English Version)

Standard No.

HJ 631-2011

Language

Chinese, Available in English version

Release Date

2011

Published By

Professional Standard - Environmental Protection

Latest

HJ 631-2011

Scope

This standard specifies the barium oxide extraction-titration method for the determination of exchangeable acidity in soil. This standard is applicable to the determination of exchangeable acidity in acidic soils. When the sample amount is 2.50g and the extraction volume is adjusted to 100ml, the detection limit of this standard method is 0.50mmol/kg, and the lower determination limit is 2.00mmol/kg.

HJ 631-2011 Referenced Document

• HJ 613 Soil.Determination of dry matter and water content.Gravimetric method
• HJ/T 166 Technical specification for soil environmental monitoring

HJ 631-2011 history

• 2011 HJ 631-2011 Soil. Determination of exchangeable acidity by barium chloride extraction. titration method