100~450℃ Melt Flow Index Tester MFR MVR Thermoplastics ISO 1133 ASTM D1238 Methods While the ISO 1133 standard requires a five-minute preheat time, ASTM D1238 requires a seven-minute preheat time. The ...View More
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High Precision ISO 1133 ASTM D1238 MFR MVR Melt Index Tester Machine