GB/T 18407.2-2001 Safety qualification for agricultural product—Environmental requirements for origin of non-environmental pollution fruit

GB/T 18407.1-2001 Safety qualification for agricultural product—Environmental requirements for origin of non-environmental pollution vegetable GB/T 18407.3-2001 Safety qualification for agricultural product—Environmental requirements for origin of non-environmental pollution meat and other animal products GB/T 18407.4-2001 Safety qualification for agricultural product—Environmental requirements for origin of non-environmental pollution aquatic products

GB/T 16488 GB/T 17134 GB/T 17136 GB/T 17137 GB/T 17141 环境监测技术规范(大气部分) 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 7468-1987 Water quality—Determination of total mercury—Cold atomic absorption spectropho to metry GB/T 7475-1987 Water quality—Determination of copper, zinc, lead and cadmium—Atomic absorption spectrometry GB/T 7482-1987 Water quality—Determination of fluoride—Visual colorimetry with zirconium alizarinsulfonate GB/T 7485-1987 Water quality—Determination of total arsenic—Silver diethyldithiocarbamate spectrophotometric method GB/T 7486-1987 Water quality—Determination of cyanide Part 1 Determination of total cyanide 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 15262-1994 Ambient air—Determination of sulfur dioxide—Formaldehyde absorbing-pararosaniline spectrophotometry GB/T 15264-1994 Ambient air—Determination of lead—Flame atomic absorption spectrophotometric method GB/T 15432-1995 Ambient air—Determination of total suspended particulates—Gravimetric method GB/T 15433-1995 Ambient air—Determination of the fluoride—Method by lime-paper sampling and fluorine ion-selective electrode analysis GB/T 15436-1995 Ambient air—Determination of nitrogen oxides—Saltzman method