Microbiology of the food chain - Method validation - Part 4: Protocol for method validation in a single laboratory (ISO 16140-4:2020); German version EN ISO 16140-4:2020
Edition 2020-12

Ladders on ships - Part 4: Holder
Edition 2009-07

Respiratory protective devices - Methods of test - Part 4: Flame test; German version EN 13274-4:2020
Edition 2020-12

Round steel link chains - Buoy chains for mooring of buoys - Part 1: Round steel link chains, grade 4
Edition 2008-01

Milk and milk products - Determination of nitrogen content - Part 4: Determination of protein and non-protein nitrogen content and true protein content calculation (Reference method) (ISO 8968-4:2016); German version EN ISO 8968-4:2016
Edition 2016-09

Packaging for terminally sterilized medical devices - Part 4: Paper bags - Requirements and test methods; German version EN 868-4:2017
Edition 2017-05

Methods of test for masonry - Part 4: Determination of shear strength including damp proof course; German version EN 1052-4:2000
Edition 2000-09

Data sheet specification of fibre optic products - Part 4: Fibre optic bundles; Text in German and English
Edition 2021-09

Fertilizers, liming materials and inhibitors - Sampling and sample preparation - Part 4: Sampling for microbial presence; German version EN 1482-4:2024
Edition 2024-06

Electronic data interchange for administration, commerce and transport (EDIFACT) - Application level syntax rules (Syntax version number: 4, Syntax release number: 1) - Part 4: Syntax and service report message for batch EDI (message type - CONTRL) (ISO 9735-4:2002)
Edition 2004-01