GB/T 21221-2007 Replaced National standards

GB/T 21221-2007 Insulating liquids—Specifications for unused insulating liquids based on synthetic aromatic hydrocarbons

GB/T 21221-2007 Insulating liquids—Specifications for unused insulating liquids based on synthetic aromatic hydrocarbons

Publish Date: 2007-12-03 Implement Date: 2008-05-20 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 21221-2007

Standard Type: National standards

Standard Status: Replaced

is_force_gb: no

CCS Name: Electrician's insulating materials and their products

ICS Name: Other insulating materials

Publish Date: 2007-12-03

Implement Date: 2008-05-20

Pages: 13 pages

Scope

This standard specifies the specifications and test methods for several types of unused synthetic aromatic hydrocarbon insulating fluids used as insulating fluids for electrical equipment.

Development Information

Word Count: 25 Thousand words Pages: 13 pages

Superseded by the following standards

GB/T 21221-2022 Insulating liquids—Specifications for unused liquids based on synthetic aromatic hydrocarbons

Referenced Standards

GB/T 261-1983 Petroleum products—Determination of flash point—Closed cup method GB/T 265-1988 Petroleum products—Determination of kinematic viscosity and calculation of dynamic viscosity GB/T 3535-1983 Petroleum oils—Determination of pour point GB/T 5654-2007 Insulating liquids—Measurement of relative permittivity,dielectric dissipation factor and d.c.resistivity GB/T 10065-2007 Gassing of insulating liquids under electrical stress and ionization GB/T 11133-1989 Liquid petroleum products—Determination of water—Karl fischer reagent method GB/T 11142-1989 SH/T 0205-1992 ISO 5662:1978 IEC 60475:1974 IEC 61039:1990 IEC 60156:1995 GB/T 1884-2000 Crude petroleum and liquid petroleum products—Laboratory determination of density—Hydrometer method

Adopt standards

IEC 60867:1993

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GB/T 4207-2003 Replaced

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GB/T 10064-2006 Replaced

GB/T 10064-2006 Methods of test for the determination of the insulation resistance of solid insulating materials

Publish Date: 2006-02-15