International Standard
ISO 21360-5:2023
Vacuum technology — Standard methods for measuring vacuum-pump performance — Part 5: Non-evaporable getter (NEG) vacuum pumps
Reference number
ISO 21360-5:2023
Edition 1
International Standard
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ISO 21360-5:2023
Published (Edition 1, 2023)

ISO 21360-5:2023

ISO 21360-5:2023
CHF 151
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This document specifies methods for the measurement of pumping characteristics of non-evaporable getters (NEGs). It is applicable to all sizes and all types of NEGs, including those:

    with the shape of pill, disk, ring, strip, module, cartridge;

    with pump structures;

    and NEG coatings on inner surface of pipes and vacuum chamber.

A significant difference of pumping characteristics of the NEG and other vacuum pumps is that the pumping speed of the NEG depends on the sorption quantity. Furthermore, especially in the case of NEG coating, the sticking probability rather than the pumping speed is often the index of the pumping performance. Therefore, this document specifies the methods for measuring the pumping speed, the sorption quantity, and the sticking probability of NEGs.

WARNING    It is assumed that the user is familiar with the handling of combustible gases and poisonous ones and with ultra-high vacuum technology.

General information

  •  : Published
     : 2023-11
    : International Standard published [60.60]
  •  : 1
     : 27
  • ISO/TC 112
  • RSS updates

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