SY/T 0420-1997 PDF English
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Basic data
| Standard ID | SY/T 0420-1997 (SY/T0420-1997) |
| Description (Translated English) | Technology standard of petroleum asphalt coating for buried steel pipeline |
| Sector / Industry | Oil & Gas Industry Standard (Recommended) |
| Classification of Chinese Standard | P94 |
| Classification of International Standard | 23.040.10; 75.140; 25.220 |
| Word Count Estimation | 32,398 |
| Date of Issue | 12/28/1997 |
| Date of Implementation | 6/1/1998 |
| Older Standard (superseded by this standard) | SYJ 4020-1988; SYJ 8-1984 |
| Quoted Standard | TJ 36; GB 7692; GB 7693; GBJ 235; GB 494; GB/T 4509-1094; GB/T 4508-1984; GB/T 4507-1984; GB/T 11148-1989; GB/T 267-1988; GB/T 260-1977; JC 176-1980; GB/T 1040-1992; GB/T 8923; SY 0063 |
| Regulation (derived from) | China National Petroleum Corporation documents [97] China-Oil-Tech-Supervision No. 698 |
| Summary | This standard applies to the transmission medium temperature does not exceed 80 �� buried steel pipeline designed outer coating of asphalt, prefabricated construction and acceptance. Asphalt external corrosion pipe should be laid in the water or marsh and reed zone. |