GB/T 21297-2007
Laboratory glassware-Interchangeable conical ground joint (English Version)

Standard No.

GB/T 21297-2007

Language

Chinese, Available in English version

Release Date

2007

Published By

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China

Latest

GB/T 21297-2007

Scope

This standard specifies the basic dimensions, technical requirements, test methods, inspection rules, signs, packaging, transportation and storage of four series of interchangeable conical abrasive joints used in laboratories. This standard applies to interchangeable cone-shaped frosted joints for glass instruments, and also applies to interchangeable tapered transparent joints.

GB/T 21297-2007 Referenced Document

• GB/T 1031 Geometrical Product Specifications(GPS).Surface texture:Profile method.Surface roughness parameters and their values*， 2009-03-16 Update
• GB/T 2828.1 Inspection procedure by count sampling part 1: Lot by lot inspection sampling plan retrieved by acceptance quality limit (AQL)*， 2013-02-15 Update
• GB/T 6543 Single and double corrugated boxes for transport package*， 2008-04-01 Update

GB/T 21297-2007 history

• 2007 GB/T 21297-2007 Laboratory glassware-Interchangeable conical ground joint