SN - NS 3550:1986
Testing tightness of sewers and manholes by means of air
active, Most Current
| Organization: | SN |
| Publication Date: | 1 January 1986 |
| Status: | active |
| ICS Code (External sewage systems): | 93.030 |
Document History
NS 3550:1986
January 1, 1986
Testing tightness of sewers and manholes by means of air
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