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BS EN 20-1
Wood preservatives. Determination of the protective effectiveness against Lyctus brunneus (Stephens). Application by surface treatment (laboratory method)
Edition
2023-12-08
BS EN 20-2
Wood preservatives. Determination of the protective effectiveness against <i>Lyctus brunneus</i> (Stephens). Application by impregnation (Laboratory method)
Edition
2023-12-08
BS C 20
Specification for aircraft gaseous oxygen replenishment connection (inch dimensions)
Edition
1986-08-29
UNE-EN 20-1
Wood preservatives - Determination of the protective effectiveness against Lyctus Brunneus (Stephens) - Part 1: Application by surface treatment (laboratory method) (Endorsed by Asociación Española de Normalización in January of 2024.)
Edition
2024-01-01
UNE-EN 20-2
Wood preservatives - Determination of the protective effectiveness against Lyctus brunneus (Stephens) - Part 2: Application by impregnation (Laboratory method) (Endorsed by Asociación Española de Normalización in January of 2024.)
Edition
2024-01-01
UNE-TBR 20
EUROPEAN DIGITAL CELLULAR TELECOMMUNICATIONS SYSTEM (PHASE 2). ATTACHMENT REQUIREMENTS FOR GLOBAL SYSTEM FOR MOBILE COMMUNICATIONS (GSM) MOBILE STATIONS. TELEPHONY.
Edition
1999-09-21
UNE-TBR 20 Ed 1
European digital cellular telecommunications system (Phase 2);Attachment requirements for Global System for Mobile communications (GSM) mobile stations;Telephony (Endorsed by Asociación Española de Normalización in February of 2022.)
Edition
2022-02-01
UNE-TBR 20 Ed 2
European digital cellular telecommunications system (Phase 2);Attachment requirements for Global System for Mobile communications (GSM) mobile stations;Telephony (Endorsed by Asociación Española de Normalización in February of 2022.)
Edition
2022-02-01
ASME V&V 20
Standard for Verification and Validation in Computational Fluid Dynamics and Heat Transfer
Edition
2009
ASTM A 20/A 20M
Standard Specification for General Requirements for Steel Plates for Pressure Vessels
Edition
2020
