Standard Test Methods for Fusion Flow of Porcelain Enamel Frits (Flow-Button Methods)
|Publication Date:||15 June 1970|
|ICS Code (Enamels):||25.220.50|
1.1 These test methods cover evaluation of the relative fusion flow characteristics of samples of a given porcelain enamel frit by comparison with an established standard for that frit.
1.2 Two test methods are included, differing only in certain details of the samples and in the apparatus and procedure for preparation of test specimens. Both test methods give equally reproducible results and provide a satisfactory basis for comparison of fusion flow of the sample with that of the established standard.
1.2.1 Test Method A employs granular particles of frit to which a bonding agent has been added. Button specimens are formed under high pressure in a hydraulic press.
1.2.2 Test Method B employs crushed, sized particles of frit to which a bonding agent has been added. Button specimens are formed in a steel mold by hand.
1.3 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.