This standard specifies on-site measurement methods for cathodic protection parameters of onshore buried steel pipelines. This standard is suitable for on-site measurement of cathodic protection parameters of onshore buried steel oil, gas and water pipelines.
GB/T 21246-2020 history
2020GB/T 21246-2020 Measurement method for cathodic protection parameters of buried steel pipelines
2007GB/T 21246-2007 Measurement method for cathodic protection parameters of buried steel pipelines