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NA 172

DIN Standards Committee Principles of Environmental Protection

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Projects of NA 172

Number: 84

DIN EN 18034 2020-08-03 Algae and algae products or intermediates - Methods of sampling and analysis - Determination of chlorophyll a content; German and English version prEN 18034:2023 More  Comment 
ISO/CD TR 59031 2020-05-20 Circular economy - Performance-based approach - Analysis of cases studies More  Comment 
DIN EN 16325 2019-12-23 Guarantees of Origin related to energy - Guarantees of Origin for Electricity, gaseous hydrocarbons, Hydrogen, and heating & cooling; German and English version prEN 16325:2022 More  Comment 

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