This specification provides standard dimensional requirements for glass Kjeldahl flasks for nitrogen digestion analysis. The ungraduated flasks, Type I, and graduated flasks, Type II, shall conform to the specified capacities. Flasks shall be made of borosilicate glass, conforming to the required maximum residual stress, tolerance of volumetric accuracy, and dimensions.
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1.1 This specification provides standard dimensional requirements for glass Kjeldahl flasks for nitrogen digestion analysis.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
E147 Specification for Apparatus for Microdetermination of Nitrogen by Kjeldahl Method
E438 Specification for Glasses in Laboratory Apparatus
E671 Specification for Maximum Permissible Thermal Residual Stress in Annealed Glass Laboratory Apparatus
E694 Specification for Laboratory Glass Volumetric Apparatus
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; glass; kjeldahl; Flasks (laboratory)--specifications; Glass laboratory apparatus--specifications; Kjeldahl method; Laboratory apparatus--specifications; Nitrogen digestion analysis l;
ICS Number Code 71.040.20 (Laboratory ware and related apparatus)
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