GB/T 34712-2017 in English

Background and significance of the standard

GB/T 34712—2017 is a standardized test method for the lift performance of adhesive tapes, aiming to unify the test process and evaluation indicators within the industry. The introduction of this standard fills the gap in the relevant field in China and provides a scientific basis for product quality control.

Comparative analysis of standard frameworks

Term explanation and application cases

Flagging: refers to the phenomenon that the end of the adhesive tape is separated from the adherend when it is attached to an adherend with a certain curvature.

Experimental steps and key points

• Sample preparation:Peel off the top 3-6 layers, and peel off three samples of at least 100mm in length along the radial direction of the adhesive tape.
• Environmental condition control:Temperature 23±1℃, humidity 50±5%, measure the warping length after vertical placement for 7 days.
• Result processing:Take the median value of the three test pieces as the final result, and be accurate to 1mm.

Implementation suggestions

Enterprises should focus on:

1. Strictly test according to the environmental conditions specified in the standard to avoid errors.
2. Select appropriate test parameters in different application scenarios, such as temperature, humidity and immersion liquid type.
3. Regularly calibrate the experimental device to ensure the accuracy of the weight quality and the warping length meter.