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(01) IMMERSION TEST (ASTM D 543, ISO 175) The method of measuring the resistance of plastics to chemical reagents by simple  immersion of processed plastic specimens is a standard procedure used throughout  the plastics industry. The method can only be used to compare the relative resis￾tance of various plastics to typical chemical reagents. The test results do not provide  a direct indication of suitability of a particular plastic for end-use application in  certain chemical environments. The limitation infl uencing the results, such as dura￾tion of immersion, temperature of the test, and concentration of reagents should  be considered when studying the test data. For applications involving continuous  immersion, the data obtained in short-time tests are useful only in screening out  the most unsuitable materials. The test equipment consists of a precision chemical balance, micrometers,  immersion containers, an oven or a constant-temperature bat...

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Plastic Material Melt And Mould Temperatures MATERIAL MELT TEMPERATURE RANGE (℃) MOULD TEMPERATURE RANGE (℃) ABS 190-270 40-80 ABS/PC ALLOY 245-265 40-80 ACETAL 180-210 50-120 ACRYLIC 220-250 50-80 CAB 170-240 40-50 HDPE 210-270 20-60 LDPE 180-240 20-60 NYLON 6 230-290 40-90 NYLON 6 (30% GF) 250-290 50-90 NYLON 6/6 270-300 40-90 NYLON 6/6 (33% GF) 280-300 40-90 NYLON 11 220-250 40-110 NYLON 12 190-200 40-110 PEEK 350-390 120-160 POLYCARBONATE 280-320 85-120 POLYESTER PBT 240-275 60-90 PET (SEMI CRYSTALLINE) 260-280 20-30 PET (AMORPHOUS) 260-280 20-30 POLYPROPYLENE (COPOLYMER) 200-280 30-80 POLYPROPYLENE (HOMOPOLYMER) 200-280 30-80 POLYPROPYLENE (30% TALC FILLED) 240-290 30-50 POLYPROPYLENE (30% GF) 250-290 40-80 POLYSTYRENE 170-280 30-60 POLYSTYRENE (30% GF) 250-290 40-80 PVC P 170-190 20-40 PVC U 160-210 20-60 SAN 200-260 50-85 SAN (30% GF) 250-270 50-70 TPE 260-320 40-70