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NA 032-02-01-02 AK
Gas pipelines in the transport system - Indicating labels
DIN EN 12255-14
Wastewater treatment plants - Part 14: Disinfection; German version EN 12255-14:2023
prEN 13038 rev
Soil improvers and growing media - Determination of electrical conductivity
DIN EN 13038 rev
Soil improvers and growing media - Determination of electrical conductivity
DIN EN ISO 17228 rev
Leather - Tests for colour fastness - Change in colour with accelerated ageing
prEN ISO 17228 rev
Leather - Tests for colour fastness - Change in colour with accelerated ageing
DIN EN 17291
Fans - Procedures and methods to determine and evaluate the energy efficiency of non-residential unidirectional ventilation units; German and English version prEN 17291:2018
DIN EN ISO 13977
Workplace exposure - Measurement of dermal exposure - Principles and methods
prEN ISO 13977-1
Workplace atmospheres - Assessment of dermal exposure - Part 1: Framework for Dermal exposure assessment