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ASTM E911-98
Standard Specification for Glass Stopcocks with Polytetrafluoroethylene (PTFE) Plugs
Automaticky přeložený název:
Standardní specifikace pro Skleněné kohoutů s polytetrafluorethylenu (PTFE) Zátky
NORMA vydána dne 10.4.1998
Informace o normě:
Označení normy: ASTM E911-98
Poznámka: NEPLATNÁ
Datum vydání normy: 10.4.1998
Kód zboží: NS-48454
Počet stran: 3
Přibližná hmotnost: 9 g (0.02 liber)
Země: Americká technická norma
Kategorie: Technické normy ASTM
Anotace textu normy ASTM E911-98 :
Keywords:
Laboratory apparatus-stopcocks/stoppers, PTFE (polytetrafluoroethylene), Stopcocks/stoppers, stopcocks-glass (with polytetrafluoroethylene (PTFE) plugs), spec, ICS Number Code 71.040.20 (Laboratory ware and related apparatus)
Doplňující informace
| 1. Scope | ||||||||||||||||||||
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1.1 This specification provides 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-For packaging standards, choose among the following standards: Specification E920, Specification E921; Practice E1133, and Specification E1157. |
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| 2. Referenced Documents | ||||||||||||||||||||
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