ASTM D 4217-2017 “Gelation Time of Thermosetting Powder Coatings

Kahulugan at paggamit
4.1 This test method can be used to select coating powders that gel at specified temperatures for the required time. This method is not useful for determination of curing time.

saklaw
1.1 This test method determines the length of time required for a thermosetting coating powder to gel on a polished metal surface at a specified temperature (e.g. 204°C (400°F)). Gel time determination is a very simple method to characterize and quality control coating powders. Gayunpaman, the gel time determined by this method is not directly related to the curing time of coating powder in practical applications.

1.2 Ang pamantayang ito ay hindi nilayon upang tugunan ang lahat ng, kung meron man, mga alalahanin sa kaligtasan na nauugnay sa paggamit nito. Responsibilidad ng mga gumagamit ng pamantayang ito na magtatag ng angkop na mga kasanayan sa kaligtasan at kalusugan at upang matukoy ang pagiging angkop ng mga paghihigpit sa regulasyon bago gamitin.

1.3 This international standard is based on the internationally recognized standardization principles established in the Decision on Principles for the Development of International Standards, Mga Patnubay at Rekomendasyon na inilabas ng WTO Committee on Technical Barriers to Trade.

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