| National Standards on Environmental Protection |
| Water quality- Determination of vanadium by graphite furnace atomic absorption spectrometric method (HJ 673-2013 replacing GB/T 14673-1993) |
The standard was 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 human health and regulating the monitoring method of vanadium in water. |
| The standard specifies the graphite furnace atomic absorption spectrometric method to determine vanadium in water and wastewater. |
| It applies to determination of vanadium in surface water, groundwater, domestic sewage and industrial wastewater. |
| The previous standard (GB/T 14673-1993) will be abolished upon when the standard is put into effect. |
| Water quality¡ªDetermination of hydrazine and monomethyl hydrazine by p-Dimethylaminobenzaldehyde spectrophotometric method (HJ674-2013 replacing GB/T 15507-1995, GB/T 14375-1993) |
The standard was 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 human health and regulating the monitoring and analysis method of hydrazine and monomethyl hydrazine. |
| The standard provides dimethylaminobenzaldehyde spectrophotometric method to determine hydrazine and monomethyl hydrazine in water. |
| The standard applies to the determination of hydrazine and monomethyl hydrazine in surface water, groundwater, domestic sewage and industrial sewage. |
| The previous standards, water quality-Determination of hydrazine-p-Dimethylaminobenzaldehyde spectrophotometric method (GB/T 15507-1995) and water quality-Determination of monomethyl hydrazine-p-Dimethylaminobenzaldehyde spectrophotometric method (GB/T 14375-1993) will be abolished upon when the standard is put into effect. |
| Determination of nitrogen oxide emissions from stationary sources by acid-base titration method (HJ 675-2013 replacing GB/T 13906-1992) |
The standard was formulated for the purpose of implementing Environmental Protection Law of the People¡¯s Republic of China and Air Pollution Prevention and Control Law, protecting the environment, safeguarding human health and regulating the monitoring method of NOx from the pollution sources of gunpowder and explosive manufacturing companies. |
| The standard provides the determination methods for NO, NO2 and NOx from the nitrogen oxide emissions of gunpowder and explosive manufacturers. |
| Air quality-determination of nitrogen oxides (GB/T 13906-1992) will be abolished upon when the standard is put into effect. |
| Water quality-Determination of phenolic compounds Liquid liquid extraction gas chromatography (HJ 676-2013) |
The standard was 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 human health and regulating the determination method of phenolic compounds in water. |
| The standard provides liquid liquid extraction gas chromatography to determine phenolic compounds in surface water, groundwater, domestic sewage and industrial wastewater. |
| This is the first issuance of the standard. |
| Water quality- Digestion of total metals-Nitric acid digestion method (HJ 677-2013) |
The standard was 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 human health and regulating the pretreatment method of total metals in water. |
| The standard provides the nitric acid digestion method of total metals in water. |
| This is the first issuance of the standard. |
| Water quality-Digestion of total metals-Microwave assisted acid digestion method (HJ 678-2013) |
The standard was 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 human health and regulating the microwave assisted acid digestion method of total metals in water. |
| The standard provides the microwave assisted acid digestion method of total metals in water. |
| This is the first issuance of the standard. |
| Soil and sediment-Determination of acrolein, acrylonitrile, acetonitrile Headspace-Gas chromatography method (HJ 679-2013) |
The standard was formulated for the purpose of implementing Environmental Protection Law of the People¡¯s Republic of China, protecting the environment, safeguarding human health and regulating the determination method of acrolein, acrylonitrile, acetonitrile in soil and sediment. |
| The standard provides the headspace-gas chromatography method to determine acrolein, acrylonitrile, acetonitrile in soil and sediment. |
| This is the first issuance of the standard. |
| Soil and sediment ¡ª Determination of mercury, arsenic, selenium, bismuth, antimony ¡ª Microwave dissolution/Atomic Fluorescence Spectrometry (HJ 680-2013) |
The standard was formulated for the purpose of implementing Environmental Protection Law of the People¡¯s Republic of China, protecting the environment, safeguarding human health and regulating the determination method of mercury, arsenic, selenium, bismuth, antimony in soil and sediment. |
| The standard provides microwave dissolution/atomic fluorescence spectrometry to determine mercury, arsenic, selenium, bismuth, antimony in soil and sediment. |
| This is the first issuance of the standard. |
| The following standards will be abolished upon when the above standards are put into effect: |
| Water quality- Determination of vanadium by graphite furnace atomic absorption spectrometric method (GB/T 14673-1993) |
| Water quality-Determination of hydrazine-p-Dimethylaminobenzaldehyde spectrophotometric method (GB/T 15507-1995) |
| Water quality-Determination of monomethyl hydrazine-p-Dimethylaminobenzaldehyde spectrophotometric method (GB/T 14375-1993) |
| Air quality-determination of nitrogen oxides (GB/T 13906-1992) |
