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air lance method [1 record]

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Alphabetical list of terms

Record 1 1990-09-14

English

Subject field(s)
  • Engineering Tests and Reliability
CONT

Seam Testing Methods ... The air lance method uses a jet of air at approximately 50 lb/in.2 pressure coming through an orifice of 3/16 in. diameter. It is directed beneath the upper edge of the overlapped seam to detect unbonded areas .... The method works best on relatively thin flexible geomembranes ....

OBS

Air lance: A device used to test, in the field, the integrity of field seams in plastic sheeting. It consists of a wand or tube through which compressed air is blown.

French

Domaine(s)
  • Fiabilité, contrôle et essais (Ingénierie)
OBS

Lance à air: Appareil utilisé sur le chantier pour vérifier l'étanchéité des joints dans les feuilles de plastique. Il consiste en un tube à travers lequel on souffle de l'air comprimé.

Spanish

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