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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 42955-2023 |
Determination of total nitrogen content in fertilizers Dumas combustion method {译} 肥料中总氮含量的测定 杜马斯燃烧法 |
China National Standards Determination total nitrogen |
 English PDF |
| GB/T 42490-2023 |
Soil quality Determination of organic carbon content and carbon isotope ratio, total nitrogen content and nitrogen isotope ratio in soil and biological samples Stable isotope ratio mass spectrometry {译} 土壤质量 土壤与生物样品中有机碳含量与碳同位素比值、全氮含量与氮同位素比值的测定 稳定同位素比值质谱法 |
China National Standards Determination total nitrogen |
English PDF |
| GB/T 41965-2022 |
Photography Flushing Waste Liquid Determination of Total Content of Ammonia Nitrogen (Micro-diffusion Kjeldahl Nitrogen Method) {译} 摄影 冲洗废液 氨态氮总含量的测定 (微扩散凯氏氮法) |
China National Standards Determination total nitrogen |
English PDF |
| GB/T 40723-2021 |
Rubber—Determination the contents of total sulfur and total nitrogen — Automatic analyser method 橡胶 总硫、总氮含量的测定 自动分析仪法 |
China National Standards Determination total nitrogen |
English PDF |
| GB/T 609-2018 |
Chemical reagent—General method for the determination of total nitrogen 化学试剂 总氮量测定通用方法 |
China National Standards Determination total nitrogen |
English PDF |
| GB/T 32141-2015 |
Determination of the total volatile basic nitrogen in feed 饲料中挥发性盐基氮的测定 |
China National Standards Determination total nitrogen |
English PDF |
| GB/T 10722-2014 |
Carbon black—Determination of total and external surface area―Nitrogen adsorption test method 炭黑 总表面积和外表面积的测定 氮吸附法 |
China National Standards Determination total nitrogen |
English PDF |
| GB/T 30733-2014 |
Determination of total carbon, hydrogen and nitrogen content in coal―Instrumental method 煤中碳氢氮的测定 仪器法 |
China National Standards Determination total nitrogen |
English PDF |
| GB/T 8572-2010 |
Determination of total nitrogen content for compound fertilizers titrimetric method after distillation 复混肥料中总氮含量的测定 蒸馏后滴定法 |
China National Standards Determination total nitrogen |
English PDF |
| GB/T 24318-2009 |
Determination of total nitrogen content in animal feeding stuffs by combustion according to the dumas principle and calculation of the crude protein content 杜马斯燃烧法测定饲料原料中总氮含量及粗蛋白质的计算 |
China National Standards Determination total nitrogen |
English PDF |
| GB/T 23952-2009 |
Inorganic chemicals for industrial use - General method for the determination of total nitrogen content - Distillation-acid-base titrations method 无机化工产品中总氮含量测定的通用方法 蒸馏-酸碱滴定法 |
China National Standards Determination total nitrogen |
English PDF |
| GB/T 23835.12-2009 |
Lithium perchlorate anhydrous - Part 12: Determination of total nitrogen content 无水高氯酸锂 第12部分：总氮含量测定 |
China National Standards Determination total nitrogen |
English PDF |
| GB/T 23772-2009 |
Inorganic chemicals for industrial use - General method for the determination of total nitrogen content - Nessler’s reagent colorimetric method 无机化工产品中总氮含量测定的通用方法 蒸馏-纳氏试剂比色法 |
China National Standards Determination total nitrogen |
English PDF |
| GB/T 9823-2008 |
Inspection of grain and oils - Determination of total nitrogen content 粮油检验 植物油料饼粕总含氮量的测定 |
China National Standards Determination total nitrogen |
English PDF |
| GB/T 2441.1-2008 |
Determination of urea - Part 1：Total nitrogen content 尿素的测定方法 第1部分：总氮含量 |
China National Standards Determination total nitrogen |
English PDF |
| GB/T 17767.1-2008 |
Determination of organic-inorganic compound fertilizers - Part 1: Total nitrogen content 有机-无机复混肥料的测定方法 第1部分：总氮含量 |
China National Standards Determination total nitrogen |
English PDF |
| GB/T 10511-2008 |
Determination of total nitrogen content for nitrophosphate - Titrimetric method after distillation 硝酸磷肥中总氮含量的测定 蒸馏后滴定法 |
China National Standards Determination total nitrogen |
English PDF |
| GB/T 10209.1-2008 |
Determination of monoammonium phosphate and diammonium phoshpate - Part 1: Total nitrogen content 磷酸一铵、磷酸二铵的测定方法 第1部分：总氮含量 |
China National Standards Determination total nitrogen |
English PDF |
| GB/T 609-2006 |
Chemical reagent - General method for the determination of total nitrogen 化学试剂 总氮量测定通用方法 |
China National Standards Determination total nitrogen |
English PDF |
| GB/T 11894-1989 |
Water quality--Determination of total nitrogen--Alkaline potassium persulfate digestion-UV spectro photo metric method 水质 总氮的测定 碱性过硫酸钾消解紫外分光光度法 |
China National Standards Determination total nitrogen |
English PDF |
| GB/T 9170-1988 |
Lubricating oils and fueloils--Determination of total nitrogen--Modified Kjeldahl method 润滑油及燃料油中总氮含量测定法(改进的克氏法) |
China National Standards Determination total nitrogen |
English PDF |
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