This specification provides standard dimensional requirements for glass filtering flasks suitable for general laboratory use. Glass filter flasks shall be in the following types: Type I, Type II (Class 1 and Class 2), and Type III (Class 1, Class 2, and Class 3). Flasks shall be made of the specified borosilicate glass and shall conform to the prescribed maximum residual thermal stress. The general appearance of the flasks are illustrated. The design for (1) conical flasks including bottom concavity and bottom heel radius, (2) neck finish, and (3) side-arm are specified. Filtering flasks shall conform to the prescribed requirements for (1) capacity; (2) dimensions such as body outside diameter, overall height, rubber stopper size, bottom and heel wall thickness, and base/heel radius; and (4) pressure resistance. Each flask shall be permanently marked with the name or known trademark of the manufacturer and the nominal capacity. There shall be an area on one side of the flask for marking with a pencil.
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1.1 This specification provides standard dimensional requirements for glass filtering flasks suitable for general laboratory use.
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
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
flasks; filtering; glass; laboratory; Filter flasks; Flasks (laboratory)--specifications; Glass laboratory apparatus--specifications; Laboratory apparatus--specifications ;
ICS Number Code 71.040.20 (Laboratory ware and related apparatus)
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