ASTM-C285 Standard Test Methods for Sieve Analysis of Wet-Milled and Dry-Milled Porcelain Enamel

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Standard Test Methods for Sieve Analysis of Wet-Milled and Dry-Milled Porcelain Enamel



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1.1 These test methods cover the determination of the fineness of frit in wet- or dry-milled porcelain enamels and other ceramic coatings for metals by means of the No. 200 (75-m) or No. 325 (45-μm) sieve.

1.2 The two methods appear as follows:

Method A—Referee Method 4 to 9
Method B—Routine Method10 to 14

1.3 Method A is intended for use where a referee method of higher accuracy is required, while Method B is intended to meet the needs of normal enamel plant production control operations where a rapid, simplified method of sieve testing is required. The accuracy of the simplified method has proved to be entirely adequate for this use. The simplified test, however, is not recommended where high accuracy is required.

1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.


Porcelain enamel products; Sieve analysis; sieve analysis of wet-/dry-milled porcelain enamel, test; ICS Number Code 25.220.50 (Enamels)

To find similar documents by ASTM Volume:

02.05 (Metallic and Inorganic Coatings; Metal Powders and Metal Powder Products)

To find similar documents by classification:

25.220.50 (Enamels)

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Document Number


Revision Level

2010 R20 EDITION



Modification Type


Publication Date

Dec. 7, 2020

Document Type

Test Method

Page Count

3 pages

Committee Number