GB/T 36869-2018 Safety threshold values of cadmium, lead, chromium, mercury and arsenic in soil for rice production

GB/T 17141-1997 GB/T 22105.1-2008 Soil quality—Analysis of total mercury,arsenic and lead contents—Atomic fluorescence spectrometry—Part 1:Analysis of total mercury contents in soils GB/T 22105.2-2008 Soil quality—Analysis of total mercury,arsenic and lead contents—Atomic fluorescence spectrometry—Part 2:Analysis of total arsenic contents in soils GB/T 18834-2002 Soil quality—Vocabulary NY/T 395-2000 Procedural regulations regarding the environment quality monitoring of soil HJ 491-2009 Determination of Total Chromium in Soil by Flame Atomic Absorption Spectrometry NY/T 395-2012 NY/T 395-2012 Technical specifications for monitoring and evaluating the environmental quality of farmland soil NY/T 1121.6-2006 Soil testing Part 6: Determination of soil organic matter NY/T 1377-2007 The determination of pH in soil \nNY/T 395-2025 Technical Specifications for Monitoring the Environmental Quality of Farmland Soil