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Calculation of Isotope Ratio

Calculation of Isotope Ratio, Total:67 items.

In the international standard classification, Calculation of Isotope Ratio involves: Analytical chemistry, Textile fibres, Mining and quarrying, Beverages, Radiation protection, Soil quality. Pedology, Farming and forestry, General methods of tests and analysis for food products, Spices and condiments. Food additives, Tobacco, tobacco products and related equipment, Fruits. Vegetables, Sugar. Sugar products. Starch.

American Society for Testing and Materials (ASTM), Calculation of Isotope Ratio

• ASTM E2426-05 Standard Practice for Pulse Counting System Dead Time Determination by Measuring Isotopic Ratios with SIMS
• ASTM E2426-10 Standard Practice for Pulse Counting System Dead Time Determination by Measuring Isotopic Ratios with SIMS

German Institute for Standardization, Calculation of Isotope Ratio

• DIN EN 18054:2024-03 Food authenticity - Determination of C and/or N isotope ratios in food by Elemental Analyser - Isotope Ratio Mass Spectrometry (EA-IRMS); German and English version prEN 18054:2024 / Note: Date of issue 2024-02-16*CD-ROM
• DIN EN 18054:2024 Food authenticity - Determination of C and/or N isotope ratios in food by Elemental Analyser - Isotope Ratio Mass Spectrometry (EA-IRMS); German and English version prEN 18054:2024
• DIN V ENV 12142:1996 Fruit and vegetable juices - Determination of the stable hyydrogen isotope ratio (<(hoch)2>H/<(hoch)1>H) of water from fruit juices - Method using isotope ratio mass spectrometry; German version ENV 12142:1996
• DIN V ENV 12140:1996 Fruit and vegetable juices - Determination of the stable carbon isotope ratio (<(hoch)13>C/<(hoch)12>C) of sugars from fruit juices - Method using isotope ratio mass spectrometry; German version ENV 12140:1996
• DIN V ENV 12141:1996 Fruit and vegetable juices - Determination of the stable oxygen isotope ratio (<(hoch)18>O/<(hoch)16>O) of water from fruit juices - Method using isotope ratio mass spectrometry; German version ENV 12141:1996

Professional Standard - Agriculture, Calculation of Isotope Ratio

• SN/T 5035-2018 Determination of carbon stable isotope ratio of ethanol in alcoholic beverages for export Gas chromatography-stable isotope ratio mass spectrometry

British Standards Institution (BSI), Calculation of Isotope Ratio

• 24/30457296 DC BS EN 18054 Food authenticity. Determination of C and/or N isotope ratios in food by Elemental Analyser. Isotope Ratio Mass Spectrometry (EA-IRMS)
• DD ENV 13070:1998 Fruit and vegetable juices. Determination of the stable carbon isotope ratio (¹³C/¹²C) in the pulp of fruit juices. Method using isotope ratio mass spectrometry
• DD ENV 12141:1997 Method for determination of stable oxygen isotope ratio (¹⁸O/¹⁶O) of water from fruit juices, using isotope ratio mass spectrometry
• DD ENV 12142-1997 Method for determination of stable hydrogen isotope ratio (H/H) of water from fruit juices, using isotope ratio mass spectrometry
• DD ENV 12140:1997 Method for determination of stable carbon isotope ratio (¹³C/¹²C) of sugars from fruit juices, using isotope ratio mass spectrometry
• DD ENV 12142:1997 Method for determination of stable hydrogen isotope ratio (²H/¹H) of water from fruit juices, using isotope ratio mass spectrometry
• BS ISO 20921:2019 Textiles. Determination of stable nitrogen isotope ratio in cotton fibres
• DD ENV 12140-1997 Method for determination of stable carbon isotope ratio (C/C) of sugars from fruit juices, using isotope ratio mass spectrometry
• DD ENV 12141-1997 Method for determination of stable oxygen isotope ratio (O/O) of water from fruit juices, using isotope ratio mass spectrometry

KR-KS, Calculation of Isotope Ratio

• KS K ISO 20921-2023 Textiles — Determination of stable nitrogen isotope ratio in cotton fibres

Professional Standard - Geology, Calculation of Isotope Ratio

• DZ/T 0184.8-1997 Determination of 40Ar-39Ar Isotope Geological Age and Argon Isotope Ratio
• DZ/T 0184.6-1997 Determination of Sm-Nd Isotope Geological Age and Neodymium Isotope Ratio
• DZ/T 0184.4-1997 Rubidium strontium isotope geological age and strontium isotope ratio determination of rocks and minerals

AENOR, Calculation of Isotope Ratio

• UNE-ENV 12140:1997 Fruit and vegetable juices - Determination of the stable carbon isotope ratio (13C/12C) of sugars from fruits juices - Method using isotope ratio mass spectrometry
• UNE-ENV 12142:1997 Fruit and vegetable juices - Determination of the stable hydrogen isotope ratio (2H/1H) of water from fruit juices - Method using isotope ratio mass spectrometry
• UNE-ENV 13070:2001 FRUIT AND VEGETABLE JUICES - DETERMINATION OF THE STABLE CARBON ISOTOPE RATIO (13C/12C) IN THE PULP OF FRUIT JUICES - METHOD USING ISOTOPE RATIO MASS SPECTROMETRY.
• UNE-ENV 12141:1997 Fruit and vegetable juices - Determination of the stable oxygen isotope (18O/16O) of water from fruit juices - Method using isotope ratio mass spectrometry

SCC, Calculation of Isotope Ratio

• NS-ENV 12140:1996 Fruit and vegetable juices — Determination of the stable carbon isotope ratio (13C/12C) of sugars from fruits juices — Method using isotope ratio mass spectrometry
• NS-ENV 12142:1996 Fruit and vegetable juices — Determination of the stable hydrogen isotope ratio (2H/1H) of water from fruit juices — Method using isotope ratio mass spectrometry
• NS-ENV 13070:1998 Fruit and vegetable juices — Determination of the stable carbon isotope ratio (13C/12C) in the pulp of fruit juices — Method using isotope ratio mass spectrometry
• DIN EN 18054 E:2024 Draft Document - Food authenticity - Determination of C and/or N isotope ratios in food by Elemental Analyser - Isotope Ratio Mass Spectrometry (EA-IRMS); German and English version prEN 18054:2024
• NS-ENV 12141:1996 Fruit and vegetable juices — Determination of the stable oxygen isotope (18O/16O) of water from fruit juices — Method using isotope ratio mass spectrometry
• AWWA JAW49827 Journal AWWA — Isotopic Uranium Activity Ratios in California Groundwater
• DANSK DS/ISO 20921:2019 Textiles – Determination of stable nitrogen isotope ratio in cotton fibres

Lithuanian Standards Office , Calculation of Isotope Ratio

• LST L ENV 12140-2000 Fruit and vegetable juices - Determination of the stable carbon isotope ratio (13C/12C) of sugars from fruits juices - Method using isotope ratio mass spectrometry
• LST L ENV 12142-2000 Fruit and vegetable juices - Determination of the stable hydrogen isotope ratio (2H/1H) of water from fruit juices - Method using isotope ratio mass spectrometry
• LST L ENV 13070-2000 Fruit and vegetable juices - Determination of the stable carbon isotope ratio (13C/12C) in the pulp of fruit juices - Method using isotope ratio mass spectrometry
• LST L ENV 12141-2000 Fruit and vegetable juices - Determination of the stable oxygen isotope (18O/16O) of water from fruit juices - Method using isotope ratio mass spectrometry

Danish Standards Foundation, Calculation of Isotope Ratio

• DS/ENV 12142:1997 Fruit and vegetable juices - Determination of the stable hydrogen isotope ratio (2H/1H) of water from fruit juices - Method using isotope ratio mass spectrometry
• DS/ENV 12140:1997 Fruit and vegetable juices - Determination of the stable carbon isotope ratio (13C/12C) of sugars from fruit juices - Method using isotope ratio mass spectrometry
• DS/ENV 12141:1997 Fruit and vegetable juices - Determination of the stable oxygen isotope ratio (18O/16O) of water from fruit juices - Method using isotope ratio mass spectrometry
• DS/ENV 13070:1998 Fruit and vegetable juices - Determination of the stable carbon isotope ratio (13C/12C) in the pulp of fruit juices - Method using isotope ratio mass spectrometry

國家市場監(jiān)督管理總局、中國國家標(biāo)準化管理委員會, Calculation of Isotope Ratio

• GB/T 37848-2019 Determination of strontium isotopic ratios in aqueous solution

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China, Calculation of Isotope Ratio

• 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
• GB/T 18932.1-2002 Method for the determination of C-4 plant sugars in honey--Stable carbon isotope ratio method

Group Standards of the People's Republic of China, Calculation of Isotope Ratio

• T/NAIA 0208-2023 Determination of Stable Isotope Ratio of Carbon and Nitrogen in Lycium Barbarum by Stable Isotope Analyzer Method
• T/CSRP 01-2023 Neutron attenuation ratio test specifications based on isotope neutron sources

European Committee for Standardization (CEN), Calculation of Isotope Ratio

• DD ENV 12 141-1996 Fruit and Vegetable Juices - Determination of the Stable Oxygen Isotope Ratio (18O/16O) of Water from Fruit Juices - Method Using Isotope Ratio Mass Spectrometry
• DD ENV 12 142-1996 Fruit and Vegetable Juices - Determination of the Stable Hydrogen Isotope Ratio (2H/1H) of Water from Fruit Juices - Method Using Isotope Ratio Mass Spectrometry
• DD ENV 12140-1996 Fruit and Vegetable Juices - Determination of the Stable Carbon Isotope Ratio (13C/12C) of Sugars from Fruits Juices - Method Using Isotope Ratio Mass Spectrometry
• DD ENV 13070-1998 Fruit and vegetable juices - Determination of the stable carbon isotope ratio (13C/12C) in the pulp of fruits juices - Method using isotope ratio mass spectrometry
• DD ENV 12142-1996 Fruit and Vegetable Juices - Determination of the Stable Hydrogen Isotope Ratio (2H/1H) of Water from Fruit Juices - Method Using Isotope Ratio Mass Spectrometry
• DD ENV 12141-1996 Fruit and Vegetable Juices - Determination of the Stable Oxygen Isotope Ratio (18O/16O) of Water from Fruit Juices - Method Using Isotope Ratio Mass Spectrometry
• DD ENV 12 140-1996 Fruit and Vegetable Juices - Determination of the Stable Carbon Isotope Ratio (13C/12C) of Sugars from Fruits Juices - Method Using Isotope Ratio Mass Spectrometry

ES-UNE, Calculation of Isotope Ratio

• UNE 34103:2022 Fruit and vegetable juices. Determination of the stable oxygen isotope ratio (18O/16O) of water from fruit juices. Method using isotope ratio mass spectrometry.
• UNE 34102:2022 Fruit and vegetables juices. Determination of the stable carbon isotope ratio (13C/12C) of sugars from fruits juices. Method using isotope ratio mass spectrometry.
• UNE-EN IEC 62793:2022 Fruit and vegetable juices. Determination of the stable carbon isotope ratio (13C/12C) in the pulp of fruit juices. Method using isotope ratio mass spectrometry.
• UNE 34101:2022 Fruit and vegetable juices. Determination of the stable carbon isotope ratio (13C/12C) in the pulp of fruit juices. Method using isotope ratio mass spectrometry.

海關(guān)總署, Calculation of Isotope Ratio

• SN/T 4675.31-2019 Determination of glycerol carbon stable isotope ratio in exported wines by liquid chromatography-stable isotope ratio mass spectrometry

Association Francaise de Normalisation, Calculation of Isotope Ratio

• NF V56-003-2*NF EN 16466-2:2013 Vinegar - Isotopic analysis of acetic acid and water - Part 2: 0C-IRMS analysis of acetic acid

國家煙草專賣局, Calculation of Isotope Ratio

• YC/T 560-2018 Determination of hydrogen stable isotope ratio of nicotine, a characteristic component of tobacco, by gas chromatography-stable isotope ratio mass spectrometry

Professional Standard - Light Industry, Calculation of Isotope Ratio

• QB/T 4852-2015 Determination of the carbon isotope ratio (<上標(biāo)13>C/<上標(biāo)12>C) of CO<下標(biāo)2> in sparkling wines.Method using isotope ratio mass spectrometry
• QB/T 4853-2015 Determination of the oxygen isotope ratio (<上標(biāo)18>O/<上標(biāo)16>O) of water in wines.Method using isotopic equilibrium exchange reaction
• QB/T 4854-2015 Determination of the carbon isotope ratio (<上標(biāo)13>C/<上標(biāo)12>C) of total sugar and pulp in orange juice.Method using isotope ratio mass spectrometry
• QB/T 4855-2015 Determination of the oxygen isotope ratio (<上標(biāo)18>O/<上標(biāo)16>O) of water in fruit juices.Method using isotopic equilibrium exchange reaction

工業(yè)和信息化部, Calculation of Isotope Ratio

• QB/T 5164-2017 Determination method of stable carbon isotope ratio (13C/12C) of ethanol in liquor: gas chromatography-combustion-stable isotope ratio mass spectrometry
• QB/T 5163-2017 Determination method of stable carbon isotope ratio (13C/12C) of acetic acid in vinegar Gas chromatography-combustion-stable isotope ratio mass spectrometry
• QB/T 5299-2018 Method for determination of glycerol stable carbon isotope ratio (13C/12C) in wine liquid chromatography coupled with stable isotope ratio mass spectrometry

國家能源局, Calculation of Isotope Ratio

• SY/T 7359-2017 Method for determination of rare gas isotope ratios

Others:   Isotope Calculations, isotope ratio, Calculation of Isotope Ratio.