What is the ASTM standard for measuring residual catalyst in PVC resin?
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29 Citations | The current technique utilized for residual stress measurement is more objective and straightforward to implement than what is specified in ASTM standard C-1422, particularly for those specimens having steep stress gradients just below the strengthened surface. |
9 Citations | Since these differences could be due to the difference in the area measured, this FTIR estimation method of residual monomers in cured resins using the NH absorbance peak as an internal standard could be an appropriate method when the resin monomer does not contain aromatic compounds. |
14 Citations | This method is simple, fast, and direct, involving only a single step measurement on the film (sample) as against the standard ASTM methods for the evaluation of these properties, which involve multi-steps and multi-instruments and are quite cumbersome. |
15 Citations | It also establishes a correlation between residual strengths measured using ASTM C1609/C1609M beams and using 1200-mm-diameter round panels at comparable crack widths. |
16 Citations | The concentration of the catalyst reasonably affected the hue of the PC resin, and we suggest that it should not exceed 50 ppm when DMAP is used as the catalyst. |
18 Citations | It is proposed that this simple method can be provide insights useful to the design and materials selection processes by measuring and localizing residual stresses from resin during curing and or thermal cycling. |
17 Citations | SIGNIFICANCE The multiple standard additions technique works well for the quantitative analysis of small amounts of residual double bonds in the poly(methyl methacrylate) chemical-cured acrylic polymer system, eliminating the need for an internal standard or external calibration. |
18 Citations | The obtained results are consistent with the standard technique for ultimate analysis based on ASTM 3172-76. |
39 Citations | This paper, by reporting a comparison of the jet-cup test with the ASTM standard, provides a basis for utilizing the more efficient jet cup with confidence in catalyst attrition studies. |
49 Citations | SIGNIFICANCE The test may be useful as a standard method of assessing resin composite consistency. |
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