The sand and dust test chamber shall expose the sample to a vertical rather than laminar air flow containing a specified amount of dust. For this purpose, the test dust should be stirred and blown into the sealed test chamber. If the relevant specifications stipulate, the sample should be connected to a vacuum pump for hypoxia, so that the gas in the dust-containing test chamber enters the sample through the gap, casing or other similar parts. The pressure drop should be able to be adjusted and monitored, and the pumping rate should be measured.
The dust settled on the bottom of the sand and dust test box should be recycled.
The sample volume should not exceed 25% of the volume of the test chamber, and the sample base should not exceed 50% of the horizontal area of ​​the working space of the test chamber.
If the sample size does not meet this total score, the relevant specification should specify which of the following methods to use:
1. Test the sealed part of the sample separately;
2. The representative parts of the test sample, including components such as doors, vents, supports, sealing shafts, etc. During the test, the fine parts of the products such as terminals and collector rings should be kept in place;
3. Test small samples with the same design details as the original samples.
Baking Container
Transparent baking boxes play an important role in the baking industry, and their advantages are mainly reflected in the following aspects:
1. Excellent transparency
Direct display of the product: The biggest feature of the transparent baking box is its excellent transparency, which allows consumers to directly observe the appearance of the baked goods inside when they purchase or receive the product. This feature is highly attractive to consumers who seek freshness and the appearance of their food.
Enhance appetite: A clear view can fully display the color, texture and decoration of baked goods, thereby stimulating consumers' desire to buy and appetite.
2. Good protection performance
Anti-damage: Transparent baking boxes usually have good toughness and durability, which can effectively protect baked goods from damage caused by external factors such as extrusion and collision during transportation and storage.
Sealing: Some transparent baking boxes also have good sealing performance, which can effectively prevent food from moisture and deterioration, thereby extending its shelf life.
3. Environmental protection and recyclability
Food-grade materials: Transparent baking boxes are mostly made of food-grade PET, PP and other plastic materials, which have good transparency and safety, and meet the requirements of food safety performance.
Recyclability: Because its material is mostly recyclable plastic, the transparent baking box can be effectively recycled after use, helping to reduce environmental pollution and waste of resources.
Bakery Products,Baking Container,Baked Food Box,Cake Pastries Container
EVER GREEN(ZHEJIANG)NEW MATERIAL CO., LTD / KUNSHAN GREENPACK CO.,LTD , https://www.zjchangjingpack.com