美利体育登录入口官网

炼油行业对全国地表水营养负荷的贡献

Petroleum Refining Industry Contribution to Nationwide Surface Water Nutrient Loadings

用改进的凯氏法测定润滑油和燃料油中总氮含量的标准试验方法

Standard Test Method for Total Nitrogen in Lubricating Oils and Fuel Oils by Modified Kjeldahl Method

通过计算测定总氮 总凯氏氮素的标准测试方法和水中的总磷 离子色谱法测定的废水

Standard Test Method for Determination of Total Nitrogen, Total Kjeldahl Nitrogen by Calculation, and Total Phosphorus in Water, Wastewater by Ion Chromatography

通过计算测定总氮 总凯氏氮素的标准测试方法和水中的总磷 离子色谱法测定的废水

Standard Test Method for Determination of Total Nitrogen, Total Kjeldahl Nitrogen by Calculation, and Total Phosphorus in Water, Wastewater by Ion Chromatography

通过高温催化燃烧和化学发光美利体育登录入口官网在水中计算的总氮和总凯氏定氮（TKN）的标准测试方法

Standard Test Method for Total Nitrogen, and Total Kjeldahl Nitrogen (TKN) by Calculation, in Water by High Temperature Catalytic Combustion and Chemiluminescence Detection

通过高温催化燃烧和化学发光美利体育登录入口官网计算水中总氮和总凯氏氮（TKN）的标准试验方法

Standard Test Method for Total Nitrogen, and Total Kjeldahl Nitrogen (TKN) by Calculation, in Water by High Temperature Catalytic Combustion and Chemiluminescence Detection

粉末表征的非筛分方法相关的标准术语

Standard Test Method for Total Nitrogen in Organic Materials by Modified Kjeldahl Method

D8083-通过高温催化燃烧和化学发光美利体育登录入口官网来计算水中总氮和总凯氏氮（TKN）的测试方法

D8083-Test Method for Total Nitrogen, and Total Kjeldahl Nitrogen (TKN) by Calculation, in Water by High Temperature Catalytic Combustion and Chemiluminescence Detection

水质.氮的测定.根据氧化氮的氧化测定结合氮(TNb)

Water quality - Determination of nitrogen - Determination of bound nitrogen (TNb), following oxidation to nitrogen oxides

和碳化硅耐熔制品结合的氮化物的化学分析.化学方法

Chemical analysis of nitride bonded silicon carbide refractories - Chemical methods

肥料.尿素中总氮的测定

Fertilizers - Determination of total nitrogen in urea

肥料.无硝酸盐的氰胺化钙中总氮含量的测定

Fertilizers - Determination of total nitrogen in calcium cyanamide nitrate free

肥料.含硝酸盐的氰胺化钙中总氮含量的测定

Fertilizers - Determination of total nitrogen in calcium cyanamide containing nitrates

无机肥料 含硝酸盐的氰氨化钙中总氮的测定

Inorganic fertilizers — Determination of total nitrogen in calcium cyanamide containing nitrates

污泥, 处理过的生物废弃物和土壤. 利用干式燃烧法进行总氮量的测定

Sludge, treated biowaste and soil. Determination of total nitrogen using dry combustion method

水质 氮的测定.过二硫酸盐氧化消解法

Water quality. Determination of nitrogen.. Method using oxidative digestion with peroxodisulfate

水质 氮的测定 第1部分：过二硫酸盐氧化消解法

Water quality — Determination of nitrogen — Part 1 : Method using oxidative digestion with peroxodisulfate

肥料和土壤调理剂 燃烧法测定总氮

Fertilizers and soil conditioners. Determination of total nitrogen by combustion

有机化工产品的总氮测定方法

Determination method of total nitrogen in organic chemical products

杜洛克猪

Duroc

河口海湾总氮、总磷水质评价指南

Guidelines for the Water Quality Assessment of Total Nitrogen and Total Phosphorus in Estuarine Bays

地理标志产品且末红枣

Geographical Indication Product Qiemu Jujube

电缆铅封涡流美利体育登录入口官网技术规范

Cable Lead Seal Eddy Current Testing Specifications

沥青路面乳化沥青厂拌冷再生施工技术规范

Technical Specifications for Cold Recycled Asphalt Pavement Using Emulsified Asphalt in Plant-Mix Method

极端降雨事件判定

Criteria for extreme rainfall events

地震预警信息发布规范

Specification for the Issuance of Earthquake Early Warning Information

固体矿物燃料的测试 总碳、氢和氮的测定 仪器方法

Testing of solid mineral fuels - Determination of total carbon, hydrogen and nitrogen - Instrumental methods

氮化物结合碳化硅耐火材料的化学分析.第1部分:化学法

Chemical analysis of nitride bonded silicon carbide refractories - Part 1: Chemical methods English version of DIN EN 12698-1:2007-06

氮化物结合碳化硅耐火材料的化学分析第1部分：化学方法

Chemical analysis of nitride bonded silicon carbide refractories - Part 1: Chemical methods; German version EN 12698-1:2007

肥料 尿素中总氮的测定

Fertilizers - Determination of total nitrogen in urea; English version of DIN EN 15478:2009-04

肥料尿素中总氮的测定

Fertilizers - Determination of total nitrogen in urea; German version EN 15478:2009

肥料 游离硝酸钙氰胺中总氮的测定

Fertilizers - Determination of total nitrogen in calcium cyanamide nitrate free; English version of DIN EN 15560:2009-06

肥料 不含氰氨化钙中总氮的测定德文版 EN 15560:2009

Fertilizers - Determination of total nitrogen in calcium cyanamide nitrate free; German version EN 15560:2009 / Note: To be replaced by DIN EN 15560 (2021-12).

化肥.游离硝酸氰氨化钙中总氮的测定

Fertilizers - Determination of total nitrogen in calcium cyanamide nitrate free; German and English version prEN 15560:2021

肥料 不含氰氨化钙中总氮的测定德语和英语版本 prEN 15560:2021

Fertilizers - Determination of total nitrogen in calcium cyanamide nitrate free; German and English version prEN 15560:2021 / Note: Date of issue 2021-11-05*Intended as replacement for DIN EN 15560 (2009-06).

肥料 含有硝酸盐的氢氨化钙中总氮的测定

Fertilizers - Determination of total nitrogen in calcium cyanamide containing nitrates; English version of DIN EN 15561:2009-06

肥料 含硝酸盐的氰氨化钙中总氮的测定

Fertilizers - Determination of total nitrogen in calcium cyanamide containing nitrates; German version EN 15561:2009 / Note: To be replaced by DIN EN 15561 (2021-12).

肥料 含硝酸盐的氰氨化钙中总氮的测定

Fertilizers - Determination of total nitrogen in calcium cyanamide containing nitrates; German and English version prEN 15561:2021

肥料 含硝酸盐的氰氨化钙中总氮的测定

Fertilizers - Determination of total nitrogen in calcium cyanamide containing nitrates; German and English version prEN 15561:2021 / Note: Date of issue 2021-11-05*Intended as replacement for DIN EN 15561 (2009-06).

无机肥料 含硝酸盐的氰氨化钙中总氮的测定

Inorganic fertilizers - Determination of total nitrogen in calcium cyanamide containing nitrates

无机肥料 含硝酸盐的氰氨化钙中总氮的测定；德文版 EN 15561:2023

Inorganic fertilizers - Determination of total nitrogen in calcium cyanamide containing nitrates; German version EN 15561:2023

肥料.用两种不同的方法对含氮磷钾的肥料,如氮,氨和尿素氨,总氮含量的测定.德文版本EN 15750-2009

Fertilizers - Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods; German version EN 15750:2009

肥料 用两种不同的方法测定仅含氮氮、氨氮和尿素氮的肥料中的总氮

Fertilizers - Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods; German version EN 15750:2009

污泥,处理的生物废弃物和土壤.使用干式燃烧法测定总氮量.德文版本EN 16168-2012

Sludge, treated biowaste and soil - Determination of total nitrogen using dry combustion method; German version EN 16168:2012

污泥、处理过的生物废物和土壤 干燃烧法测定总氮

Sludge, treated biowaste and soil - Determination of total nitrogen using dry combustion method; German version EN 16168:2012

水质.氮的测定.第1部分:过硫酸盐消解法测定氮含量

Water quality - Determination of nitrogen - Part 1: Method using oxidative digestion with peroxodisulfate (ISO 11905-1:1997); German version EN ISO 11905-1:1998

食品.根据杜马原则通过燃烧对总氮含量的测定和粗蛋白含量的计算.第2部分:谷物,豆类和碾磨谷物产品(ISO 16634-2-2016).德文版本EN ISO 16634-2-2016

Food products - Determination of the total nitrogen content by combustion according to the Dumas principle and calculation of the crude protein content - Part 2: Cereals, pulses and milled cereal products (ISO 16634-2:2016); German version EN ISO 16634-2:

土质.氮总含量测定.改良基尔达斯法

Soil quality - Determination of total nitrogen - Modified Kjeldahl method (ISO 11261:1995)

土壤质量.用干燃烧法测定总氮含量(元素分析)

Soil quality - Determination of total nitrogen content by dry combustion ("elemental analysis") (ISO 13878:1998)

和碳化硅耐熔制品结合的氮化物的化学分析.第1部分:化学方法

Chemical analysis of nitride bonded silicon carbide refractories - Part 1: Chemical methods

乳及乳制品.按格尔达尔法测定总氮的质量含量的方法与蛋白质质量含量的测定

Milk and milk products. Determination of mass part of total nitrogen by Kjeldahl method and determination of mass part of protein

矿物肥料.复合肥料的总氮含量的测定方法（用铬和有机氮的矿化亚还原硝酸盐的蒸馏法）

Mineral fertilizers. Method for determination of total mass fraction of nitrogen in compound fertilizers (distillation method using the chromium reduction of nitrate nitrogen and mineralization of organic nitrogen)

酿造产品 鉴别 凯氏定氮法测定总氮质量浓度

Brewing products. Identification. Determination of mass concentration of total nitrogen by Kjeldahl method

肥料. 无硝酸盐的氰胺化钙中总氮含量的测定

Fertilizers. Determination of total nitrogen in calcium cyanamide nitrate free

肥料. 含硝酸盐的氰胺化钙中总氮含量的测定

Fertilizers. Determination of total nitrogen in calcium cyanamide containing nitrates

肥料. 采用两种不同的方法测定含有仅作为硝态氮, 氨态氮和脲氮的氮的肥料中的总氮含量

Fertilizers. Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods

土壤 总氮的测定方法

Soils. Methods for determination of total nitrogen

氰氨化钙

Calcium cyanamide

肥料级磷酸脲

Fertilizer grade urea phosphate

水质.总氮的测定.碱性过硫酸钾消解紫外分光光度法

Water quality.Determination of total nitrogen.Alkaline potassium persulfate digestion UV spectrophotometric method

水质 总氮的测定 连续流动-盐酸萘乙二胺分光光度法

Water quality.Determination of total nitrogen by continuous flow analysis (CFA) and N-(1-naphthyl)ethylene diamine dihydrochloride spectrophotometry

水质.总氮的测气相分子吸收光谱法.

Water quality Determination of tota-nitrogen Gas-phase molecular absorption spectrometry

肥料 硝硫铵

Fertilizantes. Nitrosulfato de amonio.

土壤质量 总氮的测定 改进的基氏定氮法

Soil quality - Determination of total nitrogen - Modified Kjeldahl method

水质 氮的测定 第1部分:过硫酸盐消解法

Water quality - Determination of nitrogen - Part 1: Method using oxidative digestion with peroxodisulfate

水质 - 催化臭氧羟基自由基氧化后总有机碳 总氮和总磷的测定

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

水质.经紫外线(UV)消化吸收后的总氮量测定.利用流分析(CFA和FIA)和光谱美利体育登录入口官网法

Water quality - Determination of total nitrogen after UV digestion - Method using flow analysis (CFA and FIA) and spectrometric detection

固体矿物燃料.总碳,氢,氮含量的测定.仪器测定法

Solid mineral fuels - Determination of total carbon, hydrogen and nitrogen content - Instrumental method

煤和焦炭 测定总碳、氢和氮的方法 仪器分析法

Coal and coke — Determination of total carbon, hydrogen and nitrogen — Instrumental method

利用流分析进行水质美利体育登录入口官网的方法.第3部分:总氮

Testing methods for water quality by flow analysis -- Part 3: Total nitrogen

肥料 尿素中总氮的测定

Fertilizers - Determination of total nitrogen in urea

无机肥料 含硝酸盐氰胺化钙中总氮的测定

Inorganic fertilizers - Determination of total nitrogen in calcium cyanamide containing nitrates

肥料 通过两种不同方法测定仅含硝酸态氮、铵态氮和尿素态氮的肥料中的总氮量

Fertilizers - Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods

无机肥料 含硝酸盐的氰氨化钙中总氮的测定

Inorganic fertilizers - Determination of total nitrogen in calcium cyanamide containing nitrates

有机-无机复混肥料

Organic-inorganic compound fertilizer

水溶肥料 总氮、磷、钾含量的测定

Water-suluble fertilizers-Determination of total nitrogen, phosphorus and potassium content

谷类、豆类粗蛋白质含量的测定.杜马斯燃烧法

Determination of the crude protein content in cereal and pules seeds by combustion according to the dumas principle

肥料总氮含量的测定

Fertilizers.Determination of total nitrogen content

进出口食品和饲料中总氮及粗蛋白的美利体育登录入口官网方法.杜马斯燃烧法

Determination of the hotel nitrogen content and calculation of the crude protein content in food and feed for import and export.Combustion according to the Dumas principle

氮化结合碳化硅耐火材料的化学分析 第一部分：化学方法

Chemical analysis of nitride bonded silicon carbide refractories - Part 1: Chemical methods

尿素中总氮含量的测定

Fertilizers - Determination of total nitrogen in urea

无机肥料 硝酸氰氨化钙中总氮的测定

Inorganic fertilizers - Determination of total nitrogen in calcium cyanamide nitrate free

氰胺钙中硝酸盐含量的无机肥料总氮测定

Inorganic fertilizers - Determination of total nitrogen in calcium cyanamide containing nitrates

肥料 用两种不同的方法测定仅含硝氮、氨氮和尿素氮的肥料中的总氮

Fertilizers - Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods

土壤质量总氮测定改进的凯氏定氮法

Soil quality - Determination of total nitrogen - Modified Kjeldahl method

肥料 尿素中总氮的测定

Fertilizers - Determination of total nitrogen in urea

肥料 游离硝酸氰氨化钙中总氮的测定

Fertilizers - Determination of total nitrogen in calcium cyanamide nitrate free

肥料 含硝酸盐的氰氨化钙中总氮的测定

Fertilizers - Determination of total nitrogen in calcium cyanamide containing nitrates

无机肥料 含硝酸盐的氰氨化钙中总氮的测定

Inorganic fertilizers - Determination of total nitrogen in calcium cyanamide containing nitrates

污泥、处理过的生物废物和土壤 使用干燃烧法测定总氮

Sludge, treated biowaste and soil - Determination of total nitrogen using dry combustion method (Endorsed by AENOR in October of 2012.)

水质 氮的测定 第1部分：使用过二硫酸盐进行氧化消化的方法 （ISO 11905-1:1997）

WATER QUALITY. DETERMINATION OF NITROGEN. PART 1: METHOD USING OXIDATIVE DIGESTION WITH PEROXODISULFATE. (ISO 11905-1:1997).

无机肥料 含硝酸盐的氰氨化钙中总氮的测定

Inorganic fertilizers - Determination of total nitrogen in calcium cyanamide containing nitrates

液化石油气中结合氮含量的测定

Combined Nitrogen in LPG including Propylene by Chemiluminescence

化学发光法测定轻质芳烃中的痕量氮

TRACE NITROGEN IN LIGHT AROMATIC HYDROCARBONS BY CHEMILUMINESCENCE

烟草及烟草制品 总氮的测定连续流动法

Tobacco and tobacco products----Determination of total nitrogen----Continuous flow method

烟草及烟草制品总氮的测定-克达尔法

Tobacco and tobacco products-Determination of total nitrogen-Kjeldahl method