ASTM-E671:2022 Edition

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E671-98(2022) Standard Specification for Maximum Permissible Thermal Residual Stress in Annealed Glass Laboratory Apparatus

Published By	Publication Date	Number of Pages
ASTM	2022

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Categories: 71.040.20 - Laboratory ware and related apparatus, ASTM

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Description

ASTM E671-98-Reapproved2022

Active Standard: Standard Specification for Maximum Permissible Thermal Residual Stress in Annealed Glass Laboratory Apparatus

ASTM E671

Scope

1.1 This specification covers a limit for thermal residual stress in reusable annealed glass laboratory apparatus as determined by prescribed photoelastic measurement procedures.

1.2 In broad classification, the laboratory glassware items covered by this specification, but not limited to, are:

1.3 This specification recognizes that photoelastic measurements are proportional to the difference of the principal stresses. The limit imposed represents a safety factor to cover a situation in which one of the principal stresses may be larger than the apparent stress.

1.4 This specification applies only to annealed glassware that is intended for sale as such. It excludes glassware that has been thermally tempered, ion-exchanged, or laminated with glass layers of differing expansion. The intent of this specification is to limit the residual stresses for safe consumer use in annealed glass, as it leaves the manufacturer.

1.5 Stresses introduced by thermal expansion differences within the glassware are covered by this specification. Graded and glass-to-metal seals are excluded.

1.6 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.

Keywords

annealed glass; residual; stress ;

ICS Code

ICS Number Code 71.040.20 (Laboratory ware and related apparatus)

DOI: 10.1520/E0671-98R22

Additional information

Burets	tubes, centrifuge
Culture dishes	tubes, combustion (ignition)
Condensers	tubes, chromatography
Bottles, dropping	jars, battery
Bottles, aspirator	impingers
Bottles, infusion	jars, chromatography
Bottles, milk test	jars, cylindrical
Bottles, gas washing	jars, bell
Bulbs, sampling	stopcocks
Extraction tubes	tubes, thistle (spray traps)
Desiccators	tubes, fermentation
and plain	tubes, drying
Bulbs, leveling	pycnometers
Bottles, reagent	joints, ball and socket or standard taper
Cylinders, graduated	tubes, digestion
Fritted ware	viscometers
Custom apparatus	tubes, connecting and adapter
Beakers	Imhoff cones
Funnels	watch glasses
Generators, Kipp
Flasks	vapor traps
Grinder, tissue
Bottles, weighing	manometers
Bulbs, absorption	percolators
Crystallizing dishes	tubes, color comparison (turbidity)
ICS Codes	71.040.20 - Laboratory ware and related apparatus