GENERAL METHODS OF TEST FOR PIGMENTS AND EXTENDERS. PART 23: DETERMINATION OF DENSITY (USING A CENTRIFUGE TO REMOVE ENTRAINED AIR ). (ISO 787-23:1979).
Edition 1996-06-21

Standard Practice for Process to Remove Retroviruses by Small Virus Retentive Filters
Edition 2022

Optical cable protected buried - Determination of the force to remove the cable from the duct - Test method
Edition 2000-09-30

General methods of test for pigments and extenders - Part 23: Determination of density (using a centrifuge to remove entrained air) (ISO 787-23:1979); German version EN ISO 787-23:1995
Edition 1995-10

High-efficiency filters and filter media for removing particles in air - Part 5: Test method for filter elements (ISO 29463-5:2022); German version EN ISO 29463-5:2022
Edition 2022-10

High-efficiency filters and filter media for removing particles in air - Part 3: Testing flat sheet filter media (ISO 29463-3:2011); German version EN ISO 29463-3:2018
Edition 2019-05

High-efficiency filters and filter media for removing particles in air - Part 2: Aerosol production, measuring equipment and particle-counting statistics (ISO 29463-2:2011); German version EN ISO 29463-2:2018
Edition 2019-05

Testing of lubricants - Testing of resistance of refrigerator oils to ammonia
Edition 1998-09

Integrated Services Digital Network (ISDN) - Digital Subscriber Signalling System No. one (DSS1) protocol - Data link layer - Part 3: Frame relay protocol specification; English version ETS 300402-3:1996
Edition 1997-04