1、 Appearance inspection
Basic requirements: The main inspection is to check whether the surface of PP environmentally friendly bags is smooth, free of wrinkles, bubbles, impurities and other defects.
Printing requirements: Check whether the printed pattern is clear, whether the color is uniform, and whether the printed content is complete, without missing, insufficient, or omitted prints.
2、 Size inspection
Length and width testing: Measure the length and width of PP eco-friendly bags to ensure they meet design requirements and usage needs.
Thickness testing: Testing the thickness of PP environmentally friendly bags, especially the thickness of key parts such as tongue, seal, and breathable holes, to ensure that their strength and function meet the requirements.
3、 Physical performance testing
Tensile strength: Evaluate the ability of PP eco-friendly bags to withstand tensile forces, ensuring that they are not easily broken during use.
Tear strength: Test the resistance of PP eco-friendly bags to tear force to prevent damage due to accidental tearing during use.
Dart impact: Evaluate the impact resistance of PP eco-friendly bags through simulated dart impact tests to ensure that they are not easily damaged during transportation and storage.
4、 Sanitary performance testing
Microbial indicators: Detect the microbial content on PP eco-friendly bags, such as bacteria, mold, etc., to ensure that they will not contaminate food or other items during use.
Heavy metal content: Detect the content of heavy metals such as lead, mercury, and other harmful elements in PP environmentally friendly bags to ensure that they meet relevant hygiene standards and safety requirements.
5、 Environmental performance testing
Recyclability: Evaluate the recyclability of PP eco-friendly bags to ensure that they can be effectively recycled and reused after use, reducing resource waste.
Degradability: For PP eco-friendly bags claiming to have biodegradability, biodegradability testing is required to verify whether they can be degraded by the natural environment within a certain period of time.
6、 Other testing items
Sealing strength: Check whether the sealing part of the PP eco-friendly bag is firm to prevent items from leaking out of the bag during transportation.
Drop test: Simulate the possible drop impact of PP eco-friendly bags during transportation and evaluate their anti drop ability.
Leakage: For PP eco-friendly bags that need to hold liquids, a leakage test is required to ensure that they will not leak during use.
In summary, the testing standards for PP eco-friendly bags cover appearance, size, physical properties, hygiene performance, environmental performance, and other aspects to ensure that their quality meets relevant requirements and standards. In the actual testing process, appropriate testing items and methods should be selected based on the specific product type and usage requirements.
