Hello. Sign In
Standards Store

ASTM E911

1998 Edition, April 10, 1998

Complete Document

Standard Specification for Glass Stopcocks with Polytetrafluoroethylene (PTFE) Plugs

Includes all amendments and changes through Reapproval Notice , 2015


View Abstract
Product Details
Document History

Detail Summary

Active, Most Current

EN
Format
Details
Price (USD)
PDF
Single User
$40.00
Print
In Stock
$40.00
Add to Cart

Product Details:

  • Revision: 1998 Edition, April 10, 1998
  • Published Date: January 2015
  • Status: Active, Most Current
  • Document Language: English
  • Published By: ASTM International (ASTM)
  • Page Count: 4
  • ANSI Approved: No
  • DoD Adopted: No

Description / Abstract:

This 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.