GB 21749-2008 (English Version) PDF

Standard No.: GB 21749-2008
Language: Chinese, Available in English version
Release Date: 2008
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Latest: GB 21749-2008

Scope: This standard specifies the safety requirements and use safety requirements for teaching instruments and equipment and connecting parts with glass as the main material. This standard is applicable to teaching equipment and connection parts used in schools with glass as the main material. This standard only deals with the safety of glassware and connecting parts and does not deal with other characteristics, such as style and other characteristics other than safety. This standard does not apply to glass medical instruments in medical institutions.

GB 21749-2008 Referenced Document

GB/T 10701 Test methods for thermal stability of silica glass*， 2008-06-30 Update
GB/T 12806-1991 Laboratory glassware-one-mark volumetric flasks
GB/T 1408.1 Insulating materials.Test methods for electric strength.Part 1:Test at power frequencies*， 2016-12-13 Update
GB/T 15726 Glassware一Stress examination methods*， 2021-08-20 Update
GB/T 15728-1995 Glass--Resistance to attack by a boiling hydrochloric acid gravimetric method of test and classification
GB/T 16920 Determination of average linear thermal expansion coefficient of glass*， 2016-07-01 Update
GB/T 18144-2000 Test method for measurement of stress in glass
GB/T 4545 Test methods for stress examination of glass containers
GB/T 4547 Glass containers.Test methods of the thermal shock resistance and thermal shock endurance
GB/T 5137.1-2002 Road vehicles-safety glazing materials--Test methods for mechanical properties
GB/T 601 Chemical reagent.Preparations of reference titration solutions*， 2016-10-13 Update
GB/T 603 Preparation of preparations and products used in chemical reagent test methods*， 2023-08-06 Update
GB/T 6552-1986 Standard test method for impact resistance of glass containers
GB/T 6580-1997 Glass--Resistance to attack by a boiling aqueous solution of mixed alkali--Method of test and classification
GB/T 6582-1997 Glass--Hydrolytic resistance of glass grains at 98℃--Method of test and classification

2008 GB 21749-2008 Safety requirements for the educational equipment.Vitreous equipment and attachments