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
BHD
97.54
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
BH GSO 150-2:2015
GSO 150-2:2013
Bahraini Standard
Expiration dates for food products - Part 2 :
Voluntary expiration dates
GSO 9:2022
Gulf Technical Regulation
Labeling of prepackaged food stuffs
BH GSO 9:2023
GSO 9:2022
Bahraini Technical Regulation
Labeling of prepackaged food stuffs
Recently Published
ISO 8932-2:2026
International Standard
Meteorology — Radiosonde — Part 2: Laboratory test method for errors in radiosonde humidity sensor calibration
ISO 4967:2026
International Standard
Steel — Determination of the non-metallic inclusion content — Micrographic method
ISO/IEC/IEEE 23612:2026
International Standard
Software and systems engineering — Incident management
ISO 1938-1:2026
International Standard
Geometrical product specifications (GPS) — Dimensional measuring equipment — Part 1: Plain limit gauges of linear size