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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| 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 isotope |
 English PDF |
| GB/T 42488-2023 |
Soil quality - Determination of 15N abundance of inorganic nitrogen in soil - Stable isotope ratio mass spectrometry {译} 土壤质量 土壤中无机态氮15N丰度的测定 稳定同位素比值质谱法 |
China National Standards isotope |
English PDF |
| GB/T 37847-2019 |
General rules for isotope composition analysis by mass spectrometry 同位素组成质谱分析方法通则 |
China National Standards isotope |
English PDF |
| GB/T 37750-2019 |
Stable isotope applied terminology and product naming rules 稳定同位素应用术语及产品命名规则 |
China National Standards isotope |
English PDF |
| GB/T 13163.4-2014 |
Radiation protection instrumentation―Radon and radon decay product measuring instruments―Part 4: Equipment for the production of reference atmospheres containing radon isotopes and their decay products (STAR) 辐射防护仪器 氡及氡子体测量仪 第4部分：含氡同位素及其子体参考大气的产生设备（氡环境试验系统） |
China National Standards isotope |
English PDF |
| GB/T 28643-2012 |
Determination of PCDD/Fs and dioxin-like PCBs in feeds - isotope dilution HRGC/HRMS 饲料中二噁英及二噁英类多氯联苯的测定 同位素稀释-高分辨气相色谱/高分辨质谱法 |
China National Standards isotope |
English PDF |
| GB/T 14503-2008 |
General principle of nomenclature and classification of radioisotope products 放射性同位素产品的分类和命名原则 |
China National Standards isotope |
English PDF |
| GB/T 20622-2006 |
Stable isotope 15N Inorganic labelled compound 稳定性同位素15N无机标记化合物 |
China National Standards isotope |
English PDF |
| GB/T 18932.1-2002 |
Method for the determination of C-4 plant sugars in honey--Stable carbon isotope ratio method 蜂蜜中碳-4植物糖含量测定方法 稳定碳同位素比率法 |
China National Standards isotope |
English PDF |
| GB/T 17672-1999 |
Determinations for isotopes of lead，strontium and neodymium in rock samples 岩石中铅、锶、钕同位素测定方法 |
China National Standards isotope |
English PDF |
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