Dongguan Guo Feng Testing Machine Co., Ltd.
Great Win Testing Machine CO. Ltd was set up in 1999, it has been over twenty years' history in the field of professional experience for lab testing instrument such as Footwear, Leather, Textile, Toy,
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0.001g Lab Internal Electronic Analytical Balance Specific Gravity Balance
For example, the application of GB/t20991-2007 standard:
1. Testing Leather`s weight in the test of air permeability
2. Testing Leather`s weight in the absorption test of water vapor
3. Test the density of woollen cloth, wool felt and back pad (whether the standard is judged)
4. Quality before and after the footwear uppers(or absorbent cloth) absorb water
5. Standard glue shall calibrate the quality of the sand cloth before and after the sample, and the proportion of samples shall be taken as the reference to the quality before and after the sample wear
6. The quality of sample( before and after the sample is soaked in air and water.)
Technical specifications:
1. Performance: weighing precision, stability and repeatability.
2, using the environment requirement: under a certain temperature (23 ±2 ℃),
Measure the weight of the material compared to the water.
Accuracy: 0 ~ 0.001g
4. Maximum weight: 200g
5. Dial diameter: 80mm, with wind shield
Random configuration (none of the following items are given) :
1. one 300ml beaker
2. one Tweezers
3. one set of specific gravity frame (more than 1000 pieces for single purchase)