The test can be used to determine whether cold slug or unfused areas are present, to determine the amount of moulded-in stress produced by the moulding process, reveal contamination and to show the quality of the weld. Complete fittings are subjected to a temperature of 150° centigrade in an air-circulating oven for a given time depending on the wall thickness of the fitting. The surfaces of the fitting are examined before and after heating. Cracks, blisters,*delamination or weld opening is measured, expressed as a percentage of the wall thickness.
Số hiệu tiêu chuẩn
ISO 580
Tên tiêu chuẩn
Injection-moulded unplasticized poly(vinyl chloride) (PVC-U) fittings; oven test; test method and basic specifications
Ngày phát hành
1990-12-00
Tiêu chuẩn tương đương
SANS 51:1990*SABS ISO 580:1990 (2000-08-31) * DIN 8063-5 (1990-01), MOD * DIN EN 763 (1992-11), MOD * 92/43172 DC (1992-07-15), MOD * BS EN 763 (1995-07-15), NEQ * NEN-EN 763:1994 en (1994-11-01), NEQ * SABS ISO 580:1990 (2000-08-31), IDT
Từ khóa
Fittings * High-temperature testing * Injection moulding * Pipe fittings * Polyvinyl chloride * Testing * Tests * Unplasticized polyvinyl chloride * Plastics products * PVC
ISO 580
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