This standard specifies the routine inspection items, inspection cycle and quality standards that must be met for transformer oil. This standard is applicable to the quality supervision of various grades of mineral transformer oil filled in electrical equipment during operation.
GB/T 7595-2000 history
2017GB/T 7595-2017 Quality of transformer oils in service
2008GB/T 7595-2008 Quality of transformer oils in service
2000GB/T 7595-2000 Quality criteria of transformer oils in service