總氮指水體中所有含氮化合物(包括氨氮、硝酸鹽、有機(jī)氮等)的總量指標(biāo),是衡量水質(zhì)富營養(yǎng)化程度的關(guān)鍵參數(shù),測定方法通常采用凱氏定氮法。
標(biāo)準(zhǔn)號 & 類別 | 標(biāo)準(zhǔn)名稱 | 發(fā)布 |
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ASTM D8001-16e1 試驗(yàn)/規(guī)范 |
通過計(jì)算測定總氮 總凱氏氮素的標(biāo)準(zhǔn)測試方法和水中的總磷 離子色譜法測定的廢水 Standard Test Method for Determination of Total Nitrogen, Total Kjeldahl Nitrogen by Calculation, and Total Phosphorus in Water, Wastewater by Ion Chromatography
離子色譜儀 |
2016-07-15 美國材料與試驗(yàn)協(xié)會 |
ASTM D8083-16 試驗(yàn)方法 |
通過高溫催化燃燒和化學(xué)發(fā)光檢測在水中計(jì)算的總氮和總凱氏定氮(TKN)的標(biāo)準(zhǔn)測試方法 Standard Test Method for Total Nitrogen, and Total Kjeldahl Nitrogen (TKN) by Calculation, in Water by High Temperature Catalytic Combustion and Chemiluminescence Detection
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2016-12-01 美國材料與試驗(yàn)協(xié)會 |
ASTM D8083-16(2023) 試驗(yàn) |
通過高溫催化燃燒和化學(xué)發(fā)光檢測計(jì)算水中總氮和總凱氏氮(TKN)的標(biāo)準(zhǔn)試驗(yàn)方法 Standard Test Method for Total Nitrogen, and Total Kjeldahl Nitrogen (TKN) by Calculation, in Water by High Temperature Catalytic Combustion and Chemiluminescence Detection
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2023-01-01 美國材料與試驗(yàn)協(xié)會 |
ASTM RR-D19-1194 2016 試驗(yàn)/規(guī)范 |
D8083-通過高溫催化燃燒和化學(xué)發(fā)光檢測來計(jì)算水中總氮和總凱氏氮(TKN)的測試方法 D8083-Test Method for Total Nitrogen, and Total Kjeldahl Nitrogen (TKN) by Calculation, in Water by High Temperature Catalytic Combustion and Chemiluminescence Detection
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2016 美國材料與試驗(yàn)協(xié)會 |
BS EN 12260:2003(2008)*BS 6068-2.83:2003 試驗(yàn)/規(guī)范 |
水質(zhì).氮的測定.根據(jù)氧化氮的氧化測定結(jié)合氮(TNb) Water quality - Determination of nitrogen - Determination of bound nitrogen (TNb), following oxidation to nitrogen oxides
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2003-01-01 英國標(biāo)準(zhǔn)學(xué)會 |
BS EN 15561:2023 試驗(yàn) |
Inorganic fertilizers — Determination of total nitrogen in calcium cyanamide containing nitrates
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2023-08-31 英國標(biāo)準(zhǔn)學(xué)會 |
BS EN 16168:2012 試驗(yàn)方法標(biāo)準(zhǔn) |
污泥, 處理過的生物廢棄物和土壤. 利用干式燃燒法進(jìn)行總氮量的測定 Sludge, treated biowaste and soil. Determination of total nitrogen using dry combustion method
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2012-09-30 英國標(biāo)準(zhǔn)學(xué)會 |
DIN EN 15561:2023 |
Inorganic fertilizers - Determination of total nitrogen in calcium cyanamide containing nitrates
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2023-10-01 德國標(biāo)準(zhǔn)化學(xué)會 |
DIN EN 15561:2023-10 |
無機(jī)肥料 含硝酸鹽的氰氨化鈣中總氮的測定;德文版 EN 15561:2023 Inorganic fertilizers - Determination of total nitrogen in calcium cyanamide containing nitrates; German version EN 15561:2023
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2023-10 德國標(biāo)準(zhǔn)化學(xué)會 |
ISO 21793:2020 試驗(yàn) |
水質(zhì) - 催化臭氧羥基自由基氧化后總有機(jī)碳 總氮和總磷的測定 Water quality — Determination of total organic carbon (TOC), dissolved organic carbon (DOC), total bound nitrogen (TNb), dissolved bound nitrogen (DNb), total bound phosphorus (TPb) and dissolved boun
總有機(jī)碳 總磷 |
2020-09-02 國際標(biāo)準(zhǔn)化組織 |
ISO 29541:2025 試驗(yàn)方法標(biāo)準(zhǔn) |
Coal and coke — Determination of total carbon, hydrogen and nitrogen — Instrumental method
總碳 |
2025-02-04 國際標(biāo)準(zhǔn)化組織 |
NF EN 15561:2023 |
Inorganic fertilizers - Determination of total nitrogen in calcium cyanamide containing nitrates
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2023-08-01 法國標(biāo)準(zhǔn)化協(xié)會 |
SS-EN 15560:2023 試驗(yàn)標(biāo)準(zhǔn) |
Inorganic fertilizers - Determination of total nitrogen in calcium cyanamide nitrate free
硫酸 |
2023 瑞典標(biāo)準(zhǔn)研究所 |
SS-EN 15561:2023 |
Inorganic fertilizers - Determination of total nitrogen in calcium cyanamide containing nitrates
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2023 瑞典標(biāo)準(zhǔn)研究所 |
UNI EN 15561:2023 |
Inorganic fertilizers - Determination of total nitrogen in calcium cyanamide containing nitrates
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2023-10-26 00:00:00 意大利統(tǒng)一標(biāo)準(zhǔn)化組織 |
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