LY/T 1678-2014 Environmental general requirements for production area of edible forest product

LY/T 1678-2006 Environmental general requirements for forest food production area

GB/T 17141 GB/T 6920-1986 Water quality—Determination of pH value—Glass electrode method GB/T 7467-1987 Water quality—Determination of chromium (Ⅵ)—1,5 Diphenylcarbohydrazide spectrophotometric method GB/T 7475-1987 Water quality—Determination of copper, zinc, lead and cadmium—Atomic absorption spectrometry GB/T 7484-1987 Water quality—Determination of fluoride—Ion selective electrode method GB/T 7485-1987 Water quality—Determination of total arsenic—Silver diethyldithiocarbamate spectrophotometric method GB/T 8170-1987 Rules for rounding off of numberical values GB/T 8170-2008 Rules of rounding off for numerical values & expression and judgement of limiting values GB/T 11896-1989 Water quality—Determination of chloride—Silver nitrate titration method GB/T 14550-2003 Method of gas chromatographic for determination of BHC and DDT in soil GB/T 15432-1995 Ambient air—Determination of total suspended particulates—Gravimetric method 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 NY/T 395-2000 Procedural regulations regarding the environment quality monitoring of soil NY/T 396-2000 Procedural regulations regarding the environment quality monitoring of water for agricultural use NY/T 397-2000 Procedural regulations regarding the environment quality monitoring of air in agricultural regions HJ 479-2009 Environmental air: Determination of nitrogen oxides (nitric oxide and nitrogen dioxide) using naphthalene-2,3-disulfonic acid-ethylenediamine method HJ 482-2009 Determination of SO2 in Ambient Air: Formaldehyde Absorption-Phenolphthalein Spectrophotometry HJ 484-2009 Water quality determination of cyanide: Capillary method and spectrophotometry HJ 491-2009 Determination of Total Chromium in Soil by Flame Atomic Absorption Spectrometry HJ 491-2019 Soil and sediment determination of copper, zinc, lead, nickel, and chromium using flame atomic absorption spectrophotometry HJ 597-2011 Water quality determination of total mercury by cold-atom absorption spectrophotometry HJ 637-2012 Water quality determination of oil and animal/vegetable fats by infrared spectrophotometry HJ 637-2018 Water quality determination of oil and animal/vegetable fats by infrared spectrophotometry NY/T 395-2012 NY/T 395-2012 Technical specifications for monitoring and evaluating the environmental quality of farmland soil GB/T 17138-1997 Soil quality--Determination of copper，zinc--Flame atomic absorption spectrophotometry NY/T 395-2025