【国外标准】 Standard Specification for Laboratory Glass Beakers

This specification provides standard dimensional requirements for glass beakers suitable for general laboratory use. The glass beakers are classified into types and sizes and are presented in details. The glass beaker types are: type I - low form with spout; type II - low form, with spout heavy duty; type III - tall form, with spout; type IV - tall form, without spout; and type V - electrolytic, without spout. Beakers shall be made of borosilicate glass conforming to the requirement specified. Types I and II beakers shall be constructed to have straight sides. Types III and IV beakers shall have slightly tapered sides. Type V beakers may have slightly tapered or straight sides.1.1 This specification provides standard dimensional requirements for glass beakers suitable for general laboratory use.NOTE 1: For packaging standards, choose among the following standards: Specification E920, Specification E921, Practice E1133. For sampling and testing refer to Specification E1157.1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.1.3 This 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.