Testing of materials for semiconductor technology - Determination of impurities in carrier gases and dopant gases - Part 2: Determination of Oxygen impurities in Nitrogen, Argon, Helium, Neon and Hydrogen using a galvanic cell

Proposed limit values for contaminants in biomethane based on health assessment criteria

Protection against pollution of water intended for human consumption in potable water installations and general requirements for devices to prevent pollution by backflow; German version EN 1717:2025

Materials obtained from end of life tyres - Part 1: General definitions related to the methods for determining their dimension(s) and impurities

Ethanol as a blending component for petrol - Determination of higher alcohols, methanol and other impurities - Gas chromatographic method; German and English version prEN 15721:2025

Compost and digestate - Determination of the content of macroscopic impurities and stones; German and English version prEN 16202:2025

Soil improvers and growing media - Methods for the determination of PAH₁₆, macroscopic impurities above 2 mm, the temperature-time profiles, oxygen uptake rate, self-heating factor and residual biogas potential in compost and digestate when used in fertilizing products; German and English version prEN 17730:2026

Fine ceramics (advanced ceramics, advanced technical ceramics) - Methods for chemical analysis of impurities in aluminium oxide powders using inductively coupled plasma-optical emission spectrometry (ISO 3169:2023); German version EN ISO 3169:2025

Preparation of steel substrates before application of paints and related products - Tests for the assessment of surface cleanliness - Part 15: Extraction of soluble contaminants for analysis by acid extraction

Rare earth - Determination of non-rare earth impurities in individual rare earth metals and their oxides - ICP-AES - Part 1: Analysis of Al, Ca, Mg, Fe and Si (ISO 24181-1:2024); German and English version EN ISO 24181-1:2025