Measuring Electrical Conductivity of Electrophoretic Paints ASTM D 4399-90-2017

Kahulugan at paggamit
4.1 The conductivity of the electrophoretic bath is due to the presence of ionic substances in the electrophoretic bath, which are derived from the carrier, and the presence of impurities in the form of ionizable acids, bases, salts or combinations of these substances. The presence of excessive ionic impurities is not conducive to the application and performance of electrophoretic paints. The test is suitable for research, production, quality control and electrophoresis bath process control.

4.2 Other relevant methods for determining water conductivity are described in Test method D1125.

saklaw
1.1 This test method includes the use of commercially available equipment to determine the conductivity of an electrophoresis tank or ultrafiltrate sample.

1.2 Ang mga pagpapahalagang ipinahayag sa mga yunit ng SI ay dapat ituring bilang mga pamantayang pagpapahalaga. Walang iba pang mga yunit ng pagsukat ang kasama sa pamantayang ito.

1.3 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.

1.4 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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