Testing of carbonaceous materials - Determination of content of dedusting substances in cokes by extraction - Solid materials

Soil quality - Determination of soil microbial diversity - Part 2: Method by phospholipid fatty acid analysis (PLFA) using the simple PLFA extraction method (ISO/TS 29843-2:2021); German version CEN ISO/TS 29843-2:2021

Soil improvers and growing media - Extraction of aqua regia soluble elements

Soil improvers and growing media - Extraction of calcium chloride/DTPA (CAT) soluble nutrients

Foodstuff - Quick Method for the Analysis of Multiple Highly Polar Pesticides and their Metabolites in Foodstuff Involving Extraction with Acidified Methanol and Measurement by LC- or IC-MS/MS (QuPPe-Method); German and English version prEN 18032:2023

Wood-based panels - Determination of melamine applying extraction and high-performance chromatography (HPLC) with ultraviolet detection; German and English version prEN 18079:2024

Foods of animal origin - Multimethod for the determination of pesticide residues using LC-based analysis following acetonitrile extraction/partitioning and clean-up by dispersive SPE; German and English version prEN 18082:2024

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 (ISO 8502-15:2020); German and English version prEN ISO 8502-15:2024

Oilseeds - Determination of oil content by the Randall extraction method

Soil quality - Sampling of soil invertebrates - Part 1: Hand-sorting and extraction of earthworms