RS ISO 8791-1: 1986 PAPER AND BOARD — DETERMINATION OF ROUGHNESS/SMOOTHNESS (AIR LEAK METHODS) — PART 1: GENERAL METHOD
3,000.00
293
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Rwanda Standards
RS ISO 21138-2: 2020 PLASTICS PIPING SYSTEMS FOR NON-PRESSURE
UNDERGROUND DRAINAGE AND SEWERAGE —
STRUCTURED-WALL PIPING SYSTEMS OF
UNPLASTICIZED POLY(VINYL CHLORIDE) (PVC-U),
POLYPROPYLENE (PP) AND POLYETHYLENE (PE) —
PART 2: PIPES AND FITTINGS WITH SMOOTH EXTERNAL
SUR
