As we all know, before a new product is officially released, relevant tests are necessary for safety reasons. For many products in stock, we can provide 1-10 pieces freely to each customer to text. So what inspection test will be carried out on glass cosmetic bottles when you receive it? The following are the detection methods for your reference.
1.Leak testing method: For each product, we add water for vacuum test and inversion test, but because your material is not water, it may have other characteristics such as permeability、volatility etc., so you need to add your material after receiving the bottle and proceed as follows Leak test.
For the tightness test, the glass bottle is tested with the content. The volume of the material to be filled during the test is required to be equivalent to the volume to be filled during mass production. After matching the hand-pulled pad and lid, inner plug, or pump/spray head, the cream bottle is placed upside down/sideways for 24 hours at room temperature, or The side of the bottle is placed in a vacuum leak detector -0.03Mpa for 10 minutes, and there is no leakage; the other bottle sides are placed in a vacuum leak detector -0.06Mpa for 20 minutes, and there is no leakage.

2. Net content inspection
Measure a certain amount of content with a graduated cylinder and fill it to the shoulder of the bottle, calculate whether it meets the requirements of the net content, and use the actual content to test if necessary.


3.Compatibility test
The bottle and the cap (spray head gasket, inner bowl (and inner plug) are manually matched and need to be rotated smoothly. The distance between the bottle caps is measured by plug silicon.