ASTM D1978-91(2014)

Standard Guide for Analysis of Electrocoat Bath Samples

STANDARD published on 1.7.2014

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The information about the standard:

Designation standards: ASTM D1978-91(2014)
Note: WITHDRAWN
Publication date standards: 1.7.2014
SKU: NS-18906
The number of pages: 1
Approximate weight : 3 g (0.01 lbs)
Country: American technical standard
Category: Technical standards ASTM

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Surface treatment

Annotation of standard text ASTM D1978-91(2014) :

Keywords:

electrical conductivity, electrocoat baths, nonvolatile content, pH, pigment content, ICS Number Code 25.220.20 (Surface treatment)

Additional information

Significance and Use

3.1 This guide indicates test procedures recommended for the maintenance of acceptable performance of the paint in an electrocoating bath. Several critical parameters must be determined throughout the operation of the bath. These parameters must be adjusted when deviations from the norm occur.

3.2 The test methods for electrocoat baths are unique, as the aqueous samples have a nonvolatile content between 8 and 25 %. Constant agitation must be present when the samples are taken and during the measurement of some of the parameters.

1. Scope

1.1 This guide covers the selection of test methods for determination of the important parameters that affect the performance of electrocoating paints.

1.2 The test methods involved are D4370, D4399, D4584, and D5145.

2. Referenced Documents

D4370-01(2023)	Standard Test Methods for Acid and Base Milliequivalent Content of Electrocoat Bath
D4399-05(2023)	Standard Test Method for Measuring Electrical Conductivity of Electrocoat Baths
D5145-09(2021)	Standard Test Methods for Nonvolatile and Pigment Content of Electrocoat Baths
D4584-05(2022)	Standard Test Method for Measuring Apparent pH of Electrocoat Baths