GB 7857-1987

Determination of organic matter in forest soil and calculation of carbon-nitrogen ratio

STANDARD published on 1.1.1987

English, Chinese -
electronic design (pdf) (238.80 USD)

The information about the standard:

Designation standards: GB 7857-1987
Note: WITHDRAWN
Publication date standards: 1.1.1987
Country: Chinese technical standard
Category: Technical standards GB