DD 39:1974
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Welding on steel pipelines under pressure
Hardcopy , PDF
01-01-1989
English
07-10-1974
Factors influencing safety including pipe material, thickness and diameter, nature of fluid content, pressure, temperature and flow rate, material for fittings and attachments, welding procedure and overall operational procedure in check-list form.
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