ASTM D STANDARD SPECIFICATION FOR JOINTS FOR PLASTIC PRESSURE PIPES USING FLEXIBLE. ELASTOMERIC SEALS. ASTM F Purchase your copy of ASTM D – 98() as a PDF download or hard copy directly from the official BSI Shop. All BSI British Standards. This specification covers the two types of joints, mechanical joint and push-on- joint, required for plastic pipe pressure systems with a wall thickness equal to or.

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