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By Application: Architectural Laboratory Water Treatment Marine Air Handling |
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plastic flange
Micrometer measurement system Metal cans . Required: cover hook, body hook, width (length, height), tightness (observation for wrinkle), and thickness. Optional: overlap (by calculation) and countersink. Plastic cans with double-seamed metal ends . Required in addition to seam scope examination: thickness and tightness. Compare seam thickness to that calculated from individual thicknesses of plastic flange and neck and metal end, excluding compound. Optional: cover hook, countersink, and width (length, height). Seam scope of projector Metal cans. Required: body hook, overlap, tightness (observation for wrinkle), and thickness by micrometer. Optional: width (length, height), cover hook, and countersink. Plastic cans with double-seamed metal ends . Required: overlap, body hook, countersink, width (length, height). Optional: cover hook. Visual examination for plastic cans with double-seamed metal ends . Required: tightness. Note compression of pressure ridge or flange during overlap measurement. Remove entire cover and examine pressure ridge for continuity. Under 21 CFR 113.60 (a,1,i,c) add the following: pressure ridge for plastic cans with double-seamed ends; impression around complete inside periphery of can body in double seam area.
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