head and tail nail distance, indentation line width, cutting surface crack width, cutting site, printing, roll cover folding resistance, compression Strength and other project indicators were tested. Among them, one batch of products failed, and the sampling inspection pass rate was 96.0%.
Individual companies have unsatisfactory head and tail nails. The qualified rate of moulded polystyrene foam for thermal insulation is 100%. The 19 batches of 15 molded polystyrene foam production enterprises for thermal insulation were spot-checked, mainly based on GB/T 10801.1-2002 "insulation moulds".
"Polystyrene foam", the national standard, mainly for size and tolerance, appearance requirements, apparent density, compressive strength, thermal conductivity, dimensional stability, water vapor permeability, water absorption, sintering,
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