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ASTM E 911 : 1998 : R2021

Current
Current

The latest, up-to-date edition.

Standard Specification for Glass Stopcocks with Polytetrafluoroethylene (PTFE) Plugs
Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

02-02-2021

1.1This specification covers standard dimensional requirements for obtaining, within practical limits, interchangeability in glass stopcocks (Note 1) with polytetrafluoroethylene (PTFE) plugs for ordinary laboratory and industrial applications. It covers dimensional interchangeability only and does not involve design characteristics of the item except where specified, nor does it involve physical or chemical characteristics of the material used. It does not cover glass stopcocks with glass plugs (Note 2) or stopcocks intended for use in high-vacuum work.

Note 1:A stopcock is defined as consisting of a plug and barrel in assembled configuration.

Note 2:Glass stopcocks with glass plugs are covered by Specification E675.

Note 3:The dimensions pertaining to stopcocks were taken from the now obsolete Commercial Standard CS 21-58 of the U.S. Department of Commerce and Product Standard PS 28-70 published by the National Bureau of Standards.

Note 4:Although glass is the most common material for stopcocks, other materials may be used as specified. Stopcocks constructed from glass shall be in accordance with Specifications E438 and E671.

1.2This 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.

Committee
E 41
DocumentType
Standard
Pages
4
PublisherName
American Society for Testing and Materials
Status
Current
Supersedes

ASTM E 694 : 2018 Standard Specification for Laboratory Glass Volumetric Apparatus
ASTM E 1189 : 2000 : R2016 Standard Specification for Micro-Burets (Koch Style)
ASTM E 1096 : 1986 : R2018 Standard Specification for Laboratory Glass Separatory Funnels
ASTM E 287 : 2002 : R2019 Standard Specification for Laboratory Glass Graduated Burets

ASTM D 1457 : 1983 Standard Specification for PTFE Molding and Molding and Extrusion Materials
ASTM E 675 : 1994 : R1998 Standard Specification for Interchangeable Taper-Ground Stopcocks And Stoppers
ASTM E 921 : 1997 : R2022 Standard Specification for Export Packaged Laboratory Apparatus
ASTM E 438 : 1992 : R2018 Standard Specification for Glasses in Laboratory Apparatus
ASTM E 1133 : 1986 : R2022 Standard Practice for Performance Testing of Packaged Laboratory Apparatus for United States Government Procurements
ASTM E 671 : 1998 : R2022 Standard Specification for Maximum Permissible Thermal Residual Stress in Annealed Glass Laboratory Apparatus
ASTM E 438 : 1992 : R2024 Standard Specification for Glasses in Laboratory Apparatus
ASTM E 921 : 1997 : R2016 Standard Specification for Export Packaged Laboratory Apparatus
ASTM D 1457 : 1992 Specification for Polytetrafluorethylene (PTFE) Molding and Extrusion Materials (Withdrawn 1996)
ASTM E 1133 : 1986 : R2016 Standard Practice for Performance Testing of Packaged Laboratory Apparatus for United States Government Procurements
ASTM E 671 : 1998 : R2016 Standard Specification for Maximum Permissible Thermal Residual Stress in Annealed Glass Laboratory Apparatus

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