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DIN EN ISO 20813
Molecular biomarker analysis - Methods of analysis for the detection and identification of animal species in foods and food products (nucleic acid-based methods) - General requirements and definitions (ISO 20813:2019); German version EN ISO 20813:2022
Edition
2023-04
DIN EN ISO 20916
In vitro diagnostic medical devices - Clinical performance studies using specimens from human subjects - Good study practice (ISO 20916:2019); German version EN ISO 20916:2024
Edition
2024-07
DIN EN ISO 20976-2
Microbiology of the food chain - Requirements and guidelines for conducting challenge tests of food and feed products - Part 2: Challenge tests to study inactivation potential and kinetic parameters (ISO 20976-2:2022); German version EN ISO 20976-2:2022
Edition
2023-02
DIN EN ISO 21009-2
Cryogenic vessels - Static vacuum insulated vessels - Part 2: Operational requirements (ISO/DIS 21009-2:2023); German and English version prEN ISO 21009-2:2023
Edition
2023-07
DIN EN ISO 21068-1
Chemical analysis of raw materials and refractory products containing silicon-carbide, silicon-nitride, silicon-oxynitride and sialon - Part 1: General information and sample preparation (ISO/DIS 21068-1:2023); German and English version prEN ISO 21068-1:2023
Edition
2023-07
DIN EN ISO 21068-2
Chemical analysis of raw materials and refractory products containing silicon-carbide, silicon-nitride, silicon-oxynitride and sialon - Part 2: Determination of volatile components, total carbon, free carbon, silicon carbide, total and free silicon, free and surface silica (ISO/DIS 21068-2:2023); German and English version prEN ISO 21068-2:2023
Edition
2023-07
DIN EN ISO 21068-3
Chemical analysis of raw materials and refractory products containing silicon-carbide, silicon-nitride, silicon-oxynitride and sialon - Part 3: Determination of nitrogen, oxygen and metallic and oxidic constituents (ISO/DIS 21068-3:2023); German and English version prEN ISO 21068-3:2023
Edition
2023-07
DIN EN ISO 21068-4
Chemical analysis of raw materials and refractory products containing silicon-carbide, silicon-nitride, silicon-oxynitride and sialon - Part 4: XRD methods (ISO/DIS 21068-4:2023); German and English version prEN ISO 21068-4:2023
Edition
2023-07
DIN EN ISO 21083-1
Test method to measure the efficiency of air filtration media against spherical nanomaterials - Part 1: Size range from 20 nm to 500 nm (ISO 21083-1:2018); German version EN ISO 21083-1:2018
Edition
2019-09
DIN EN ISO 21187
Milk - Quantitative determination of microbiological quality - Guidance for establishing and verifying a conversion relationship between results of an alternative method and anchor method results (ISO 21187:2021); German version EN ISO 21187:2021
Edition
2021-06