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Biological nitrogen

Biological nitrogen, Total:26 items.

In the international standard classification, Biological nitrogen involves: Sugar. Sugar products. Starch, Fuels, Soil quality. Pedology, Water quality, Protection against crime, Cans. Tins. Tubes.

VN-TCVN, Biological nitrogen

• TCVN 5255-2009 Soil quality.Method for the determination of bio-available nitrogen
• TCVN 6653-2000 Soil quality.Biological methods.Determination of nitrogen mineralization and nitrification in soils and the influence of chemicals on these processes
• TCVN 6166-2002 Microbial nitrogen fixing fertilizer

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China, Biological nitrogen

• GB/T 12091-1989 Method for determination of nitrogen content in starches and derived products
• GB/T 30728-2014 Determination of nitrogen in solid biofuels
• GB/T 5458-1997 Liquid nitrogen biological container
• GB/T 5458-2012 Liquid nitrogen biological container

Korean Agency for Technology and Standards (KATS), Biological nitrogen

• KS I ISO 14238:2018 Soil quality ― Biological methods ― Determination of nitrogen mineralization and nitrification in soils and the influence of chemicals on these processes
• KS I ISO 14238:2008 Soil quality-Biological methods-Determination of nitrogen mineralization and nitrification in soils and the influence of chemicals on these processes

KR-KS, Biological nitrogen

• KS I ISO 14238-2018 Soil quality ― Biological methods ― Determination of nitrogen mineralization and nitrification in soils and the influence of chemicals on these processes

Association Francaise de Normalisation, Biological nitrogen

• NF X31-225*NF EN ISO 14238:2014 Soil quality - Biological methods - Determination of nitrogen mineralization and nitrification in soils and the influence of chemicals on these processes
• NF EN ISO 14238:2014 Qualité du sol - Méthodes biologiques - Détermination de la minéralisation de l'azote et de la nitrification dans les sols, et de l'influence des produits chimiques sur ces processus

RU-GOST R, Biological nitrogen

• GOST ISO 14238-2014 Soil quality. Biological methods. Determination of nitrogen mineralization and nitrification in soils and the influence of chemicals on these processes

International Organization for Standardization (ISO), Biological nitrogen

• ISO 14238:2012 Soil quality - Biological methods - Determination of nitrogen mineralization and nitrification in soils and the influence of chemicals on these processes
• ISO 14238:1997 Soil quality - Biological methods - Determination of nitrogen mineralization and nitrification in soils and the influence of chemicals on these processes

German Institute for Standardization, Biological nitrogen

• DIN ISO 14238:2011 Soil quality - Biological methods - Determination of nitrogen mineralization and nitrification in soils and the influence of chemicals on these processes (ISO/DIS 14238:2011)
• DIN EN ISO 14238:2014-03 Soil quality - Biological methods - Determination of nitrogen mineralization and nitrification in soils and the influence of chemicals on these processes (ISO 14238:2012); German version EN ISO 14238:2013
• DIN EN ISO 14238:2014 Soil quality - Biological methods - Determination of nitrogen mineralization and nitrification in soils and the influence of chemicals on these processes (ISO 14238:2012); German version EN ISO 14238:2013

ES-UNE, Biological nitrogen

• UNE-EN ISO 14238:2013 Soil quality - Biological methods - Determination of nitrogen mineralization and nitrification in soils and the influence of chemicals on these processes (ISO 14238:2012) (Endorsed by AENOR in January of 2014.)

British Standards Institution (BSI), Biological nitrogen

• BS 6068-2.40:1991 Water quality. Physical, chemical and biochemical methods. Method for the determination of borate by spectrometry using azomethine-H
• BS EN ISO 14238:2013 Soil quality. Biological methods. Determination of nitrogen mineralization and nitrification in soils and the influence of chemicals on these processes
• BS 6068 Sec.2.40:1991 Water quality. Physical, chemical and biochemical methods. Method for the determination of borate by spectrometry using azomethine-H

Professional Standard - Public Safety Standards, Biological nitrogen

• GA/T 1615-2019 Clozapine Detection in Forensic Science Biological Samples by Gas Chromatography and Gas Chromatography-Mass Spectrometry

European Committee for Standardization (CEN), Biological nitrogen

• EN ISO 14238:2013 Soil quality - Biological methods - Determination of nitrogen mineralization and nitrification in soils and the influence of chemicals on these processes

Danish Standards Foundation, Biological nitrogen

• DS/ISO 14238:1997 Soil quality - Biological methods - Determination of nitrogen mineralization and nitrification in soils and the influence of chemicals on these processes

AENOR, Biological nitrogen

• UNE 77326:2004 Soil quality -- Biological methods -- Determination of nitrogen mineralization and nitrification in soils and the influence of chemicals on these processes

Others:   French nitrogen, biological method, Nitrogen determination, nitrogen method, nitrogen adsorption method, nitrogen bet method, biological total nitrogen, total nitrogen method, nitrogen bet method, Nitrogen method, Nitrogen instrument, enzymatic biological method, Biological total nitrogen method, Biological nitrogen, Biological denitrification, biological method, total nitrogen, Nitrogen method, nitrogen method, Kjeldahl nitrogen method.