TERMIUM Plus^®

Record 1,  Textual support,  English

Record number: 1, Textual support number: 1 CONT

Seam Testing Methods ... The pressurized dual seam [testing] method was mentioned earlier in connection with the double-wedge thermal seam method. The air channel that results between the double seam is inflated to approximately 30 lb/in² for 100 to 200 ft. If no drop in pressure occurs, the seam is acceptable; ...  1, record 1, English, - pressurized%20dual%20seam%20method

Record number: 1, Textual support number: 1 OBS

The hot wedge or hot knife method consists of an electrically heated resistance element in the shape of a blade that is passed between the two sheets to be sealed. As it melts the surfaces, roller pressure is applied. An interesting variation is the dual-hot-wedge method, which forms two parallel seams with an unbonded space between them. This space is subsequently pressurized with air and any lowering of pressure signifies a leak in the seam  1, record 1, English, - pressurized%20dual%20seam%20method

Record 1,  Textual support,  French

Record number: 1, Textual support number: 1 OBS

Contrôle d'étanchéité de soudure sur [géo]membrane bitumineuse au moyen d'une cloche à vide.  2, record 1, French, - m%C3%A9thode%20de%20contr%C3%B4le%20d%27%C3%A9tanch%C3%A9it%C3%A9%20de%20double%20soudure%20sous%20pression

Record number: 1, Textual support number: 2 OBS

Double soudure: Modalité d'assemblage comportant la réalisation simultanée de deux joints parallèles, effectués en soudure automatique et séparés par une zone non soudée. Ce canal central sert généralement à faire des tests d'étanchéité du joint, sous pression.  2, record 1, French, - m%C3%A9thode%20de%20contr%C3%B4le%20d%27%C3%A9tanch%C3%A9it%C3%A9%20de%20double%20soudure%20sous%20pression

Record 1,  Textual support,  Spanish