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ASTM C285-24

Current Revision

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-μm) or No. 325 (45-μm) sieve.

1.2 The two methods appear as follows:

 

Sections

 

   Method A—Referee Method
   Method B—Routine Method

 4 to 9 
10 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.


3.1 The fineness of the frit has a direct bearing on many of its properties, such as fusibility, tearing, gloss, opacity, suspension in the slip, and ease of spraying.

SDO ASTM: ASTM International
Document Number C285
Publication Date Nov. 1, 2024
Language en - English
Page Count 3
Revision Level 24
Supercedes
Committee B08.12
Publish Date Document Id Type View
Nov. 1, 2024 C0285-24 Revision
April 1, 2010 C0285-10 Revision
Nov. 1, 2020 C0285-10R20 Reaffirmation
May 1, 2015 C0285-10R15E01 Reaffirmation
Sept. 15, 2005 C0285-88R05 Reaffirmation
June 24, 1988 C0285-88R99 Reaffirmation