This standard applies to the design, material inspection, construction and acceptance of anti-corrosion projects for buried steel pipelines using coal tar enamel external anti-corrosion layers.
SY/T 0379-1998 history
2013SY/T 0379-2013 Standard of coal tar enamel external protective coating for buried steel pipeline
1999SY/T 0379-1998 Standard of coal tar enamel external protective coating for buried steel pipeline