National Environmental Protection Standards

Water quality-Determination of polycyclic aromatic hydrocarbons by liquid- liquid extraction and solid-phase extraction -High performance liquid chromatography（HJ 478-2009）

This standard is formulated for the purpose of implementing Environmental Protection Law of the People's Republic of China and Law on Prevention and Control of Water Pollution, protecting the environment, safeguarding people's health, and setting standards for determining polycyclic aromatic hydrocabons in water.

This standard stipulates the liquid-liquid extraction and solid-phase extraction of sixteen kinds of polycyclic aromatic hydrocarbons from water by high performance liquid chromatography.

This standard shall apply to the determination of sixteen kinds of polycyclic aromatic hydrocarbons in drinking water, ground water, surface water, seawater, industrial wastewater and domestic wastewater.

This standard is the amendment to Water quality-Determination of specified six polynuclear aromatic hydrocarbons-High performance liquid chromatography (GB 13198-91).

Water quality-Determination of specified six polynuclear aromatic hydrocarbons-High performance liquid chromatography (GB 13198-91), which was approved and released by the former National Environmental Protection Agency on August 31, 1991, shall be abolished as of the day this standard goes to effect.

Ambient air-Determination of nitrogen oxides-N-(1-naphthyl)ethylene diamine dihydrochloride spectrophotometric method（HJ 479-2009）

This standard is formulated for the purpose of implementing Environmental Protection Law of the People's Republic of China and Law on Prevention and Control of Water Pollution, protecting the environment, safeguarding people's health, and setting standards for determining nitrogen oxides in the ambient air.

This standard stipulates the methods to determine nitrogen oxides (nitrogen monoxide and nitrogen dioxide) in the ambient air. 

This standard shall apply to the determination of nitrogen oxides, nitrogen dioxide, and nitrogen monoxide in the ambient air.

This standard is the combination of and amendment to Air quality-Determination of nitrogen oxides in ambient air-Griess-saltzman method (GB 8969-88) and Ambient air-Determination of nitrogen oxides-Saltzman method (GB/T 15436-1995).

Air quality-Determination of nitrogen oxides in ambient air-Griess-saltzman method (GB 8969-88), which was approved and released by the former National Environmental Protection Agency on March 26, 1988 and Ambient air-Determination of nitrogen oxides-Saltzman method (GB/T 15436-1995), which was approved and released by the former National Envronmental Protection Agency on March 25, 1995, shall be abolished as of the day this standard goes to effect. 

 
　
Ambient air-Determination of the fluoride-Method by filter sampling and fluorine ion-selective electrode analysis
（HJ 480-2009）

This standard is formulated for the purpose of implementing Environmental Protection Law of the People's Republic of China and Law on Prevention and Control of Water Pollution, protecting the environment, safeguarding people's health, and setting standards for determining fluoride in the ambient air by filter sampling and fluorine ion-selective electrode analysis.

This standard stipulates the method to determine fluoride in the ambient air by filter sampling and fluorine ion-selective electrode analysis.

This standard shall apply to the determination of hourly level and daily average level of fluoride in the ambient air. 

This standard is the amendment to Ambient air-Determination of the fluoride-Method by lime-paper sampling and fluoride ion-selective electrode analysis (GB/T 15434-1995). 　

Ambient air-Determination of the fluoride-Method by lime-paper sampling and fluoride ion-selective electrode analysis (GB/T 15434-1995), which was approved and released by the former National Environmental Protection Agency on March 25, 1995, shall be abolished as of the day this standard goes to effect.

Ambient air-Determination of the fluoride-Method by lime-paper sampling and fluorine ion-selective electrode analysis（HJ 481-2009）

This standard is formulated for the purpose of implementing Environmental Protection Law of the People's Republic of China and Law on Prevention and Control of Water Pollution, protecting the environment, safeguarding people's health, and setting standards for determining fluoride in the ambient air by lime-paper sampling and flurine ion-selective electrode analysis.

This standard stipulates the method to determine fluoride in the ambient air by lime-paper sampling and flurine ion-selective electrode analysis.

This standard shall apply to the determination of the long-term average pollution level of fluoride in the ambient air.

This standard is the amendment to Ambient air-Determination of the fluoride-Method by lime-paper sampling and fluoride ion-selective electrode analysis (GB/T 15433-1995).

Ambient air-Determination of the fluoride-Method by lime-paper sampling and fluoride ion-selective electrode analysis (GB/T 15433-1995), which was approved and released by the former National Environmental Protection Agency on March 25, 1995, shall be abolished as of the day this standard goes to effect.

Ambient air-Determination of sulfur dioxide-Formaldehyde absorbing-pararosaniline spectrophotometry（HJ 482-2009）

This standard is formulated for the purpose of implementing Environmental Protection Law of the People's Republic of China and Law on Prevention and Control of Water Pollution, protecting the environment, safeguarding people's health, and setting standards for determining sulfur dioxide in the ambient air by formaldehyde absorbing-pararosaniline spectrophotometry.

This standard stipulates the method to determine sulfur dioxide in the ambient air by formaldehyde absorbing-pararosaniline spectrophotometry.

This standard shall apply to the determination of sulfur dioxide in the ambient air.

This standard is the amendment to Ambient air-Determination of sulfur dioxide-Formaldehyde absorbing-pararosaniline spectrophotometry (GB/T 15262-94).

Ambient air-Determination of sulfur dioxide-Formaldehyde absorbing-pararosaniline spectrophotometry (GB/T 15262-94), which was approved and released by the former National Environmental Protection Agency on October 26, 1994, shall be abolished as of the day this standard goes to effect.　 

Ambient air-Determination of sulfur dioxide in ambient air-Tetrachloromercurate(TCM)-Pararosaniline method（HJ 483-2009）

This standard is formulated for the purpose of implementing Environmental Protection Law of the People's Republic of China and Law on Prevention and Control of Water Pollution, protecting the environment, safeguarding people's health, and setting standards for determining sulfur dioxide in the ambient air by tetrachloromercurate (TCM)-parasosaniline method.

This standard stipulates the determination of sulfure dioxide in the ambient air by etrachloromercurate (TCM)-parasosaniline method.

This standard shall apply to the determination of sulfur dioxide in the ambient air.

This standard is the amendment to Air quality-Determination of sulfur dioxide in ambient air-Tetrachlomercurate (TCM)- pararosaniline method (GB 8970-88).

Air quality-Determination of sulfur dioxide in ambient air-Tetrachlomercurate (TCM)- pararosaniline method (GB 8970-88), which was approved and released by the former National Environmental Protection Agency on March 26, 1988, shall be abolished as of the day this standard goes to effect.

Water quality-Determination of Cyanide- Volumetric and Spectrophotometry method（HJ 484-2009）

This standard is formulated for the purpose of implementing Environmental Protection Law of the People's Republic of China and Law on Prevention and Control of Water Pollution, protecting the environment, safeguarding people's health, and setting standards for determining cyanide in water.

This standard stipulates the collection and preparation of cyanide samples from surface water, domestic wastewater, and industrial wastewater as well as the volumetric and spectrophotometry analysis of these samples.

This standard shall apply to the determination of cyanide in the surface water, domestic wastewater and industrial wastewater.

Water quality-Determination of cyanide Paet 1 Determination of total cyanide (GB 7486-87) and Water quality-Determination of cyanide Paet 2 Determination of cyanide (GB 7487-87), which was approved and released by the former National Environmental Protection Agency on March 14, 1987, shall be abolished as of the day this standard goes to effect.

Water quality-Determination of copper-Sodium diethydlthiocabamate spectrophotometric method（HJ 485-2009）

This standard is formulated for the purpose of implementing Environmental Protection Law of the People's Republic of China and Law on Prevention and Control of Water Pollution, protecting the environment, safeguarding people's health, and setting standards for determining copper in water by sodium diethydlthiocabamate spectrophotometric method. 

This standard stipulates the determation of soluable copper and total copper in water by sodium diethydlthiocabamate spectrophotometric method. 

This standard shall apply to the determination of total copper and soluable copper in surface water, ground water, domestic wastewater and industrial wastewater.

This standard is the amendment to Water quality-Determination of copper-Sodlum dtethyldithiocabamate spectro-photometric method (GB 7474-87). 

Water quality-Determination of copper-Sodlum dtethyldithiocabamate spectro-photometric method (GB 7474-87), which was approved and released by the former National Environmental Protection Agency on August 31, 1991, shall be abolished as of the day this standard goes to effect.

Water quality-Determination of copper-2,9-Dimethy-1,10-phenanthroline spectrophotometric method（HJ 486-2009）

This standard is formulated for the purpose of implementing Environmental Protection Law of the People's Republic of China and Law on Prevention and Control of Water Pollution, protecting the environment, safeguarding people's health, and setting standards for determining copper in water by 2,9-Dimethy-1,10-phenanthroline spectrophotometric method. 

This standard stipulates the determation of soluable copper and total copper in water by 2,9-Dimethy-1,10-phenanthroline spectrophotometric method.

This standard is the amendment to Water quality-Determination of copper-2,9 Dimethy 1,10-phenanthrofine spectrophotometric method (GB 7473-87). 

Water quality-Determination of copper-2,9 Dimethy 1,10-phenanthrofine spectrophotometric method (GB 7473-87), which was approved and released by the former National Environmental Protection Agency on March 14, 1987, shall be abolished as of the day this standard goes to effect.

Water quality-Determination of fluoride–Visual colorimetry with zirconium alizarinsulfonate（HJ 487-2009）

This standard is formulated for the purpose of implementing Environmental Protection Law of the People's Republic of China and Law on Prevention and Control of Water Pollution, protecting the environment, safeguarding people's health, and setting standards for determining fluoride in water and wastewater by visual colorimetry with zirconium alizarinsulfonate.

This standard stipulates the determination of fuoride in in drinking water, surface water, ground water and industrial wastewater by visual colorimetry with zirconium alizarinsulfonate. 

This standard shall apply to the determination of fluoride in drinking water, surface water, ground water and industrial wastewater.

Water quality-Determination of fluoride-Visual colorimetry with zirconium alizarinsuifonate (GB 7482-87), which was approved and released by the former National Environmental Protection Agency on March 14, 1987, shall be abolished as of the day this standard goes to effect.

Water quality-Determination of Fluoride-Fluorine reagents spectrophotometry（HJ 488-2009）

This standard is formulated for the purpose of implementing Environmental Protection Law of the People's Republic of China and Law on Prevention and Control of Water Pollution, protecting the environment, safeguarding people's health, and setting standards for determining fluoride in water by fluorine reagents spectrophotometry.

This standard stipulates the method to determine fluoride (measured in F) in surface water, ground water and industrial wastewater by fluorine reagents spectrophotometry.

This standard shall apply to the determination of fluoride in surface water, ground water and industrial wastewater.

Water quality-Determination of fluoride-Fluor reagent spectrophotometric method (GB 7483-87), which was approved and released by the former National Environmental Protection Agency on March 14, 1987, shall be abolished as of the day this standard goes to effect.

Water quality-Determination of silver- Spectrophotometric method with 3,5-Br2-PADAP（HJ 489-2009）

This standard is formulated for the purpose of implementing Environmental Protection Law of the People's Republic of China and Law on Prevention and Control of Water Pollution, protecting the environment, safeguarding people's health, and setting standards for determining silver in water and wastewater by spectrophotometric method with 3,5-Br2-PADAP.

This standard stipulates the determination of silver in water and wastewater by spectrophotometric method with 3,5-Br2-PADAP.

This standard shall apply to the determination of silver in surface water polluted by silver and in industrial wastewater from industries involved in production of photo sensitive materials, printing of films, silver plating and smelting.

Water quality-Determination of silver-Spectrophotometric method with 3,5-Br2-PADAP (GB 11909-89), which was approved and released by the former National Environmental Protection Agency on December 25, 1989, shall be abolished as of the day this standard goes to effect.　 

Water quality-Determination of silver- Spectrophotometry with cation 2B（HJ 490-2009）

This standard is formulated for the purpose of implementing Environmental Protection Law of the People's Republic of China and Law on Prevention and Control of Water Pollution, protecting the environment, safeguarding people's health, and setting standards for determining silver in water and wastewater by spectrophotometry with cation 2B.

This standard stipulates the determination of silver in water and wastewater.

This standard shall apply to the determination of silver in surface water polluted by silver and in industrial wastewater from industries involved in production of photo sensitive materials, printing of films, silver plating and smelting.

Water quality-Determination of silver-Spectrophotometry with cadion 2B (GB 11908-89), which was approved and released by the former National Environmental Protection Agency on December 25, 1989, shall be abolished as of the day this standard goes to effect.

Soil quality-Determination of total chromium-Flame atomic absorption pectrometry（HJ 491-2009）

This standard is formulated for the purpose of implementing Environmental Protection Law of the People's Republic of China and Law on Prevention and Control of Water Pollution, protecting the environment, safeguarding people's health, and setting standards for determining total chromium in soil.　 

This standard stipulates the method to determine total chromium in soil by flame atomic absorption pectrometry.

This standard shall apply to the determination of total chromium in soil.　

Soil quality-Determination of total chromium-Flame atomic absorption spectrophotometry (GB/T 17137-1997), which was approved and released by the former National Environmental Protection Agency on July 30, 1997, shall be abolished as of the day this standard goes to effect.

Air quality-Vocabulary（HJ 492-2009）

This standard is formulated for the purpose of implementing Environmental Protection Law of the People's Republic of China, protecting the environment, safeguarding people's health, and determining the air quality vocabulary. 

This vocabulary stipulates the definition of terms about air quality, inlcuding those about the sampling and measurement of gases, steam and particles.

Air Quality Vocabulary (GB 6919-86), which was approved and released by the former National Environmental Protection Agency on October 10, 1986, shall be abolished as of the day this vocabulary goes to effect.

Water quality sampling-technical regulation of the preservation and handling of samples（HJ 493-2009）

This standard is formulated for the purpose of implementing Environmental Protection Law of the People's Republic of China and Law on Prevention and Control of Water Pollution, protecting the environment, safeguarding people's health, and setting standards for the preservation and handling of samples for water quality.　

This standard stipulates the measures for preservation of water quality samples during the processes from preparation of sample containers to addition of preservation agents, as well as measures for the design of labels for samples, the transport, reception and the qquality guarantee of samples.

This standard shall apply to natural water, domestic wastewater and industrial wastewater. The sample preservation technologies and handling procedures provided in this standard shall be applicable to the occasions when the samples (snap sample or mixed sample) cannot be analyzed on the spot and have to be sent to the laboratory.

Water quality sampling-Technical regulation of the preservation and handling of samples (GB 12999-91), which was approved and released by the former National Environmental Protection Agency on January 25, 1991, shall be abolished as of the day this standard goes to effect. 

Water quality-Guidance on sampling techniques（HJ 494-2009）

This standard is formulated for the purpose of implementing Environmental Protection Law of the People's Republic of China and Law on Prevention and Control of Water Pollution, and enhancing the regulation and guidance of water quality sampling.

This standard stipulates the technological guidance for sampling of sediment deposition and sludge for quality insurance control and analysis of water quality characteristics and shall apply to the sediment diposition, ground water and sewage water in open rivers, enclosed pipes, reservoirs and lakes. 

This standard is the basic and principle guidance of the sampling technoloiges and does not include detailed sampling procedures.

Water quality－Guidance on sampling techniques (GB 12998-91), which was approved and released by the former National Environmental Protection Agency on January 25, 1991, shall be abolished as of the day this standard goes to effect.

Water quality-Technical regulation on the design of sampling programmes（HJ 495-2009）

This standard is formulated for the purpose of implementing Environmental Protection Law of the People's Republic of China and Law on Prevention and Control of Water Pollution, and enhancing the regulation and guidance of water quality sampling.　　

This standard stipulates the principles for the quality control of sampling of all kinds of waters including wastewater and the sediment diposition and sludge at their bottoms, the chracteristics of their qualities, the sampling specifications, and the sampling programes for identification of pollutants.

This standard shall apply to the design of sampling programmes for all kinds of waters including the sediment diposition and sludge at their bottoms.

Water quality-Technical regulation on the design of sampling programmes (GB 12997-91), which was approved and released by the former National Environmental Protection Agency on January 25, 1991, shall be abolished as of the day this standard goes to effect. 

The following standards shall be abolished as of the day the above standards go to effect:

Water quality-Determination of specified six polynuclear aromatic hydrocarbons-High performance liquid chromatography (GB 13198-91)

 Air quality—Determination of nitrogen oxides in ambient air-Griess-saltzman method (GB 8969-88)

Ambient air-Determination of nitrogen oxides-Saltzman method (GB/T 15436-1995).

 Ambient air-Determination of the fluoride-Method by lime-paper sampling and fluoride ion-selective electrode analysis (GB/T 15434-1995)

Ambient air-Determination of the fluoride-Method by lime-paper sampling and fluoride ion-selective electrode analysis (GB/T 15433-1995)

Ambient air-Determination of sulfur dioxide-Formaldehyde absorbing-pararosaniline spectrophotometry (GB/T 15262-94)

Air quality--Determination of sulfur dioxide in ambient air-Tetrachlomercurate (TCM)- pararosaniline method (GB 8970-88)

Water quality-Determination of cyanide Paet 1 Determination of total cyanide (GB 7486-87)

Water quality-Determination of cyanide Paet 2 Determination of cyanide (GB 7487-87)

Water quality-Determination of copper-Sodlum dtethyldithiocabamate spectro-photometric method (GB 7474-87)

Water quality-Determination of copper-2,9 Dimethy 1,10-phenanthrofine spectrophotometric method (GB 7473-87)

Water quality-Determination of fluoride-Visual colorimetry with zirconium alizarinsuifonate (GB 7482-87)

Water quality-Determination of copper-2,9 Dimethy 1,10-phenanthrofine spectrophotometric method (GB 7473-87)

Water quality-Determination of silver-Spectrophotometric method with 3,5-Br2-PADAP (GB 11909-89)

Water quality-Determination of silver-Spectrophotometry with cadion 2B (GB 11908-89)

Soil quality-Determination of total chromium-Flame atomic absorption spectrophotometry (GB/T 17137-1997)

Air Quality Vocabulary (GB 6919-86)

Water quality sampling-Technical regulation of the preservation and handling of samples (GB 12999-91)

Water quality－Guidance on sampling techniques (GB 12998-91)

Water quality-Technical regulation on the design of sampling programmes（GB 12997-91）