Bag Method and Micro Chamber Method

The promulgation and implementation of national standards and industry standards is a major event concerning the development of the industry. In recent years, with the rapid development of China’s adhesive and adhesive tape industry and the promotion of trade liberalization in the world, companies are paying more and more attention to the new standards introduced by the industry. As the main participating unit of national/industry standards and the leader of industry management, China Adhesives and Adhesive Tape Industry Association attaches great importance to the standard system, revision and publicity work, and the annual standard-related publicity work is continuously promoted. Better serve the industry and businesses. In order to enable the whole industry to master and follow up the new progress of various standards work, China Adhesives and Adhesive Tape Industry Association has collected a number of recent announcements, focusing on the interpretation of China’s adhesive and adhesive tape industry in 2019. A batch of national standards and industry standards implemented on April 1.

 

1, GB/T 36797—2018 Decoration Anti-cracking Epoxy Joint Glue

 

This standard specifies the terms and definitions, product classification and marking, requirements, test preparation, test methods, inspection rules and packaging, marking, marking, transportation and storage of epoxy resin joint glue for decoration and crack prevention. A solvent-free joint adhesive product for interior decoration composed of an oxygen resin (component A) and an amine curing agent (component B).

 

2. GB/T 36799-2018 Determination of The Release of Volatile Organic Compounds from Adhesives-Microchamber Method

 

This standard specifies the rapid qualitative and semi-quantitative determination of vapor phase organic compounds (volatile and semi-volatile) in adhesive products by the micro-cabin method, which is applicable to the release of volatile organic compounds in the specified area (or mass) of adhesives quick check.

 

3, GB/T 36802-2018 Solar Photovoltaic Back Sheet Coating Adhesive

 

This standard specifies the terms and definitions, classification, requirements, state adjustment, test preparation, aging conditions, test methods, inspection rules, marking, packaging, transportation and storage of solar photovoltaic backsheet coating adhesives, suitable for solar backing composite Adhesive for bonding.

 

4, GB/T 36803-2018 Determination of The Release of Volatile Organic Compounds from Adhesives-Bag Method

 

The standard specifies a method for determining the release of volatile organic compounds (VOCs), formaldehyde and other carbonyl compounds from adhesive products by the bag method. It is suitable for measuring non-polar and weak polarities between n-C6 and n-C16. Release of volatile organic compounds (coating release and residual release). The measured concentrations of VOCs, formaldehyde and other carbonyl compounds ranged from μg/m3 to mg/m3.

5, GB/T 36877-2018 Structural Adhesive Impact Peel Strength Determination Wedge Method

This standard specifies the test method for determining the impact peel strength of structural adhesives by the wedge method. It is suitable for the determination of the impact peel strength of bonded test pieces composed of metal and metal, metal and non-metal.

6, GB/T 36878—2018 Determination of The Tear Strength of Sealant

This standard specifies the method for determining the tear strength of sealant, which is suitable for the characterization and determination of the tear strength of sealant.