Confirm To Standards GB 1038,ASTM D1434‌,ISO 2556,ISO 15105-1,JIS ‌K7126-A,YBB‌ 00082003‌,ASTM D 3985, ASTM F 1307, ASTM F 1927, ISO 15105-2, GB/T 19789, JIS K 7126-B, YBB 00082003,ASTM E96,ASTM D1653,TAPPI T464,ISO 2528,GB 1037,GB/T 16928,DIN 53122-1,JIS Z0208, DIN 53380-3-1998, ISO15106-3 Function and Usage Flat film samples are clamped in a diffusion chamber where test and carrier gases are allowed to permeate through the sample under tightly controlled conditions. Uniquely engineered sensors and sophisticated, software managed gas control and electronic systems deliver unsurpassed performance and accuracy. Model Y200D is designed specifically for trace Oxygen permeation analysis of packaging barrier films. The Y200D is both modular and extremely flexible. Model W300 measures trace Water Vapor Transmission Rates in packaging barrier films. The W300 is also modular and will accept expansion modules for simultaneous analysis of multiple samples. Product Profile W 300 type water vapor permeability analyzer ensures the high precision of the testing results with its accurate electromagnetic balance type weighing cell and the circuit handling. It can precisely control the temperature and simulate the humility, and use the principle of the weight method to make the W 300 type become the optimal choice for testing and researching the packaging materials. On the basis of the control software of the standard Windows, the operation of W300 is convenient and of high efficiency. The remarkable feature of this instrument is that it can display the real time vapor permeability direct view in test process, which conforms to the GB/T1037-1988