German Standard Methods for Examination of Water, Waste Water and Sludge; Summary Action and Material Characteristic Parameters (Group H); Determination of the Chemical Oxygen Demand (COD) in the Range over 15 mg/l (H41)
Edition 1980-12

Protection of metallic materials against corrosion - Guidance on the assessment of corrosion likelihood in closed water circulation systems; German version EN 14868:2005
Edition 2005-11

Plastics - Biodegradable mulch films for use in agriculture and horticulture - Requirements and test methods; German version EN 17033:2018
Edition 2018-03

Determination of the ultimate aerobic biodegradability of plastic materials in an aqueous medium - Method by measuring the oxygen demand in a closed respirometer (ISO 14851:2019); German version EN ISO 14851:2019
Edition 2019-07

Fine ceramics (advanced ceramics, advanced technical ceramics) - Test method for air-purification performance of semiconducting photocatalytic materials - Part 1: Removal of nitric oxide (ISO 22197-1:2016)
Edition 2018-12

Packaging - Requirements and test scheme for carrier bags suitable for treatment in well-managed home composting installations; German version EN 17427:2022
Edition 2022-08

Packaging - Evaluation of the disintegration of packaging materials in practical oriented tests under defined composting conditions; German version EN 14045:2003
Edition 2003-06

Plastics - Determination of aerobic biodegradation of non-floating plastic materials in a seawater/sandy sediment interface - Method by measuring the oxygen demand in closed respirometer (ISO 18830:2016); German version EN ISO 18830:2017
Edition 2018-02

Chemicals used for treatment of water intended for human consumption - Silver salts for intermittent use; German version EN 15030:2012+A1:2015
Edition 2015-05

Chemicals used for treatment of water intended for human consumption - Sodium hypochlorite; German version EN 901:2013
Edition 2013-12