1、 Requirements for test samples of anti-static shielding bags:
The number of tested shielding bag samples shall not be less than 6; If
otherwise, relevant provisions of GB/T 2828.1 shall apply.
2、 Relevant standards for detection of anti-static shielding bags:
GB/T 191 Packaging Pictorial Marks for Storage and Transportation
GB/T 2828.1 Sampling Procedures by Attributes
GB/T 15,463 Electrostatic Safety Terminology
GB/T 16288 Marking of Plastic Products
GB/T 32304-2015 Requirements for Electrostatic Protection of Aerospace
Electronic Products
EDS STM 11.31-2012 Shielding performance test of anti-static bag
3、 Two methods for detection of anti-static shielding bags
1. It is the external resistance test method, and the external surface
resistivity is less than 1.010120. This method can only test the external
resistance of the inner and outer layers of the anti-static packaging bag. The
external resistivity is 1.0105Q~1.0101202. It is not a test for the shielding
layer of the anti-static packaging bag. Therefore, the test results do not
reflect the performance of the anti-static packaging bag in terms of
electrostatic shielding. The test results are different from the shielding
performance test requirements.
2. Electrostatic peak voltage measurement methods are all external
resistance measurement methods that take the measured induced peak voltage as
the indicator. The external resistance value of the measured data is used to
identify the quality of materials.
3. It is to test the shielding energy of the shielding bag, put the test
probe into the shielding bag, measure the energy (ng) that the shielding bag can
shield, and obtain the shielding energy through the test curve, so as to
evaluate the shielding ability.
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