GB/T 30789.2-2014 "Paints and varnishes―Evaluation of degradation of coatings―Designation of quantity and size of defects ,and of intensity of uniform changes in appearance―Part 2: Assessment of degree of blistering"

GB/T 30789.2-2014 《Paints and varnishes―Evaluation of degradation of coatings―Designation of quantity and size of defects ,and of intensity of uniform changes in appearance―Part 2: Assessment of degree of blistering》 Related products

The GB/T 30789.2-2014 standard provides a method for assessing intercoat blistering grades by comparison with standard pictures. The standard uses standard pictures to display bubble cases of different sizes (class 2 to 5) and number (density). The rating system is suitable for assessing intercoat blistering defects under artificial acceleration and natural aging conditions. The size and number of bubbles are defined in the standard to help determine the durability and mass of coatings.

This summary is not the original standard text and is for reference only. For accurate information, please obtain it through official channels.

Status	Active
CCS	G50
ICS	87.040
Release Date	2014-07-08 00:00:00
Implementation Date	2014-12-01 00:00:00

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