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

Meaning and use
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.

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 Values expressed in SI units shall be regarded as standard values. No other units of measurement are included in this standard.

1.3 This standard is not intended to address all, if any, safety concerns associated with its use. It is the responsibility of users of this standard to establish appropriate safety and health practices and to determine the applicability of regulatory restrictions prior to use.

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, Guidelines and Recommendations issued by the WTO Committee on Technical Barriers to Trade.

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