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GB/T 7774-2007Vacuum technology -- Turbomolecular pumps -- Measurement of performance characteristics (English PDF)

真空技术涡轮分子泵性能参数的测量

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Issued by

Standardization Administration of China

Level / Type

National · Recommended

Issue date

December 2, 2007

Implementation date

June 1, 2008

Scope

GB/T 7774-2007 is the English-translated version of 真空技术涡轮分子泵性能参数的测量.

GB/T 7774-2007 — This standard specifies the method for measuring the turbo molecular pump performance parameters, it applies to all sizes and all types of turbo-molecular pump. include. a) with mechanical or magnetic bearings; b) with or without additional traction levels.

Note. Due to the turbo molecular pump before the pump needs to support the following curve as a volumetric flow rate - curved supplementary inlet pressure to fully determine its performance. --- Flow curves; --- Compression ratio curve; --- Inlet pressure curve. Including all relevant regional and various gases.

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Document preview — GB/T 7774-2007

National Standard of the People's Republic of China

ICS: 23.160
Classification: J 78
Replacing: GB/T 7774-1987

Issued by: Standardization Administration of China

What this standard covers1
Document data2

What this standard covers

This standard specifies the methods of measurement turbo molecular pump performance parameters. It applies to all sizes and all types of turbo- molecular pump. Comprising: a) with mechanical or magnetic bearings, additional traction stage b) with or without.

Document data

International classification (ICS): 23.160.

Chinese classification (CCS): J78.

Estimated length of the Chinese original: 14,156 words.

Adopted international standard: ISO 5302-2003, IDT.

Supersedes the earlier edition GB/T 7774-1987.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 9 pages — is available in the English PDF.

Referenced standards

Normative references

ISO 3529

Cited by

JB/T 12585-2016Vacuum technology - Magnetically levitated turbomolecular pumps

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