SY/T 0087.1-2018 Standard for corrosion evaluation of steel pipelines and storage tanks Part 1: Direct evaluation of external corrosion of buried steel pipelines (English Version)
2018SY/T 0087.1-2018 Standard for corrosion evaluation of steel pipelines and storage tanks Part 1: Direct evaluation of external corrosion of buried steel pipelines
2006SY/T 0087.1-2006 Standard of steel pipeline and tank corrosion assessment.Steel pipeline external corrosion direct assessment
1995SY/T 0087-1995 Standard investigation method for corrosion and protection of steel pipelines and tanks