ISO 21940-21:2022
International Standard
Current Edition
·
Approved on
07 November 2022
Mechanical vibration — Rotor balancing — Part 21: Description and evaluation of balancing machines
ISO 21940-21:2022 Files
English
62 Pages
Current Edition
OMR
97.02
ISO 21940-21:2022 Scope
This document sets out the requirements for evaluating hard and soft bearing balancing machines that support and rotate:
a) rotors with rigid behaviour at balancing speed (as described in ISO21940-11);
b) rotors with shaft elastic behaviour and balanced in accordance with low speed balancing procedures (as described in ISO21940-12).
Best Sellers
GSO 150-2:2013
Gulf Standard
Expiration dates for food products - Part 2 :
Voluntary expiration dates
OS GSO 150-2:2013
GSO 150-2:2013
Omani Standard
Expiration dates for food products - Part 2 :
Voluntary expiration dates
OS GSO 9:2022
GSO 9:2022
Omani Standard
Labeling of prepackaged food stuffs
GSO 9:2022
Gulf Technical Regulation
Labeling of prepackaged food stuffs
Recently Published
ISO 10295-1:2026
International Standard
Fire tests for building elements and components — Fire testing of service installations — Part 1: Penetration seals
ISO 7554-2:2026
International Standard
Surgical instruments — Terms, measuring methods and test methods — Part 2: Methods for determination of basic measures
ISO 7554-3:2026
International Standard
Surgical instruments — Terms, measuring methods and test methods — Part 3: Test methods
ISO 23693-3:2026
International Standard
Determination of the resistance to gas explosions of passive fire protection materials — Part 3: Tubular and I-section substrates subject to elastic deformation only