ASTM-C338 Standard Test Method for Softening Point of Glass

ASTM-C338 - 1993 R13 EDITION - CURRENT
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Standard Test Method for Softening Point of Glass
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Scope

1.1 This test method covers the determination of the softening point of a glass by determining the temperature at which a round fiber of the glass, nominally 0.65 mm in diameter and 235 mm long with specified tolerances, elongates under its own weight at a rate of 1 mm/min when the upper 100 mm of its length is heated in a specified furnace at the rate of 5 ± 1°C/min.

1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

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.

Keywords

ICS Number Code 81.040.10 (Raw materials and raw glass)

To find similar documents by ASTM Volume:

15.02 (Glass; Ceramic Whitewares)

To find similar documents by classification:

81.040.10 (Raw materials and raw glass)

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Document Number

ASTM-C338-93(2013)

Revision Level

1993 R13 EDITION

Status

Current

Modification Type

Reapproval

Publication Date

Oct. 15, 2013

Document Type

Test Method

Page Count

3 pages

Committee Number

C14.04