Dentistry - Chairside denture base relining materials - Part 1: Hard type materials (ISO 23401-1:2023)
Edition 2023-11-15

Hard Rubber Sheets
Edition 1975-02

Welding consumables - Welding consumables for hard-facing; German version EN 14700:2022
Edition 2023-02

Space product assurance - Processing and quality assurance requirements for hard brazing of metallic materials for flight hardware; English version EN 16602-70-40:2023
Edition 2023-10

Testing of solid fuels - Determination of Hardgrove grindability index of hard coal
Edition 2001-07

Hard coal - Determination of the crucible swelling number (ISO 501:2012)
Edition 2021-09

Photography - Medical radiographic cassettes/screens/films and hard-copy imaging films - Dimensions and specifications (ISO 4090:2001); German version EN ISO 4090:2004
Edition 2004-08

Water quality - Guidance on marine biological surveys of hard-substrate communities (ISO 19493:2007); German version EN ISO 19493:2007
Edition 2007-09

Flanged steel pipes and fittings with hard or soft rubber linings - Technical delivery conditions
Edition 2002-06

Surface active agents - Determination of stability in hard water; German version EN 12458:1999
Edition 1999-04