Announcement on the release of two national environmental protection standards, such as "Measurement of Exchangeable Acidity of Soils, Chloride Extraction and Titration", is to implement the "Environmental Protection Law of the People's Republic of China", protect the environment, protect human health, and regulate environmental monitoring. Approved two standards such as the "measurement of exchangeable acidity of the soil, cesium chloride extraction-titration method" and other standards for the national environmental protection standards, and released.
The standard name and number are as follows:
I. Determination of Soil Exchangeable Acidity Chlorium Chloride Extraction-titration (HJ 631-2011);
Second, the determination of total phosphorus in the soil alkali-molybdenum cerium anti-spectrophotometry (HJ 632-2011).
The above standards have been implemented since March 1, 2012 and published by China Environmental Science Press. The standard content can be found on the MEP website (bz.mep.gov.cn).
Special announcement.
December 6th, 2011
The standard name and number are as follows:
I. Determination of Soil Exchangeable Acidity Chlorium Chloride Extraction-titration (HJ 631-2011);
Second, the determination of total phosphorus in the soil alkali-molybdenum cerium anti-spectrophotometry (HJ 632-2011).
The above standards have been implemented since March 1, 2012 and published by China Environmental Science Press. The standard content can be found on the MEP website (bz.mep.gov.cn).
Special announcement.
December 6th, 2011
3D Line Laser Marking Machine, 3d Line fiber laser marking machine, 3d Line fiber laser marker
Feiquan Laser Technology Wuxi Co., Ltd. , https://www.feiquan-laser.com