International Organization for Standardization (ISO)
Latest
ISO 27892:2010
Scope
This International Standard specifies a method for the measurement of rapid shutdown torque (destructive
torque) of turbomolecular pumps in which gas momentum is produced by axial flow type blades and/or helical
channels. The main forces leading to failure of turbomolecular pumps are torques around the rotational axis.
Other insignificant forces and moments that can occur lie outside the scope of this International Standard.
There are two kinds of failure: rapid shutdown by whole burst and softer crash of rotor. This International
Standard applies to both. The same measurement method can be used for turbomolecular pumps and
molecular drag pumps.
ISO 27892:2010 Referenced Document
ISO 3529-2 Vacuum technology — Vocabulary — Part 2: Vacuum pumps and related terms*, 2020-02-25 Update