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This specification provides standard dimensional requirements for flat-bottom and round-bottom glass boiling flasks. Boiling flasks shall be in the following types: type I � flat bottomed: class 1 - tooled top, long neck; class 2 - ring neck, long neck; class 3 - ring neck, long neck, wicker protector; class 4 - standard taper neck, short neck; class 5 - standard taper neck, long neck. Type II � round bottomed: class 1�tooled top, long neck; class 2�ring neck, short neck; class 3�standard taper neck, short neck; class 4�standard taper neck, long neck; class 5�standard taper neck, short neck with side arm; class 6�standard taper neck, short neck with thermometer well; and class 7�ball and socket neck, short neck. Type III � heart-shape bottomed: class 1�standard taper neck, short neck. Necks on all single-neck flasks shall be circular in cross section and perpendicular to the center of the flask body. The top shall be strengthened and finished. Flat bottoms shall be in a plane perpendicular to the vertical axis through the neck of the flask. Round-bottomed flasks shall be spherical in shape to the point of juncture with the flask neck. The nominal capacity of a flask shall not exceed the actual capacity to the base of the neck.
This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.
1.1 This specification provides standard dimensional requirements for flat-bottom and round-bottom glass boiling flasks.
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
E438 Specification for Glasses in Laboratory Apparatus
E671 Specification for Maximum Permissible Thermal Residual Stress in Annealed Glass Laboratory Apparatus
E676 Specification for Interchangeable Taper-Ground Joints
E677 Specification for Interchangeable Spherical Ground Joints
E920 Specification for Commercially Packaged Laboratory Apparatus
E921 Specification for Export Packaged Laboratory Apparatus
E1133 Practice for Performance Testing of Packaged Laboratory Apparatus for United States Government Procurements
E1157 Specification for Sampling and Testing of Reusable Laboratory Glassware
ICS Number Code 71.040.20 (Laboratory ware and related apparatus)
UNSPSC Code 41121804(Laboratory flasks)
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ASTM E1403-97(2013), Standard Specification for Laboratory Glass Boiling Flasks, ASTM International, West Conshohocken, PA, 2013, www.astm.orgBack to Top