NA 041
DIN Standards Committee Heating and Ventilation Technology and their Safety
DIN EN 253 [Withdrawn] references following documents:
| Document number | Edition | Title |
|---|---|---|
| ISO 9329-1 | 1989-07 | Seamless steel tubes for pressure purposes; technical delivery conditions; part 1: unalloyed steels with specified room temperature properties More |
| ISO 9330-1 | 1990-02 | Welded steel tubes for pressure purposes; technical delivery conditions; part 1: unalloyed steel tubes with specified room temperatures properties More |
