Home / Standards / GB/T 42488-2023 GB/T 42488-2023 Active Soil quality—Determination of nitrogen-15 abundance of inorganic nitrogen in soil—Stable isotope ratio mass spectrometry 土壤质量 土壤中无机态氮15N丰度的测定 稳定同位素比值质谱法 Standard Type GBT ICS 13.080.01 CCS B10 Status 现行 Issue Date 2023-03-17 Implementation 2023-10-01 Responsible Dept 农业农村部 Drafting Unit N/A