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SN EN ISO 21528-2
Microbiology of the food chain - Horizontal method for the detection and enumeration of Enterobacteriaceae - Part 2: Colony-count technique (ISO 21528-2:2017)
Edition
2017-11
SN EN ISO 21530
Dentistry - Materials used for dental equipment surfaces - Determination of resistance to chemical disinfectants (ISO 21530:2004)
Edition
2004-08
SN EN ISO 21531
Dentistry - Graphical symbols for dental instruments (ISO 21531:2009)
Edition
2009-05
SN EN ISO 21533
Dentistry - Reprocessable cartridge syringes for intraligamentary injections (ISO 21533:2018)
Edition
2018-07
SN EN ISO 21534
Non-active surgical implants - Joint replacement implants - Particular requirements (ISO 21534:2007)
Edition
2009-10
SN EN ISO 21535
Non-active surgical implants - Joint replacement implants - Specific requirements for hip-joint replacement implants (ISO 21535:2023)
Edition
2024-08
SN EN ISO 21536
Non-active surgical implants - Joint replacement implants - Specific requirements for knee-joint replacement implants (ISO 21536:2023)
Edition
2024-08
SN EN ISO 21545
Paints and varnishes - Determination of settling (ISO 21545:2018)
Edition
2021-04
SN EN ISO 21546
Paints and varnishes - Determination of the resistance to rubbing using a linear abrasion tester (crockmeter) (ISO 21546:2019)
Edition
2021-04
SN EN ISO 21549-1
Health informatics - Patient healthcard data - Part 1: General structure (ISO 21549-1:2013)
Edition
2013-08
