Operating guide & Precautions:

• Avoid filling pressure higher than 6000Pa. Fill gas until the bag is fully expanded, however, it is not so tense when you press it using your finger.The overpressure filling can cause gas sampling bag burst damage.

• Operating temperature: －15℃～＋60℃.

• Keep away from flame and high temperature when filling and storage. Avoid contacting sharp stuff.

• Before use, flush sampling bags three times with the gas you want to fill.

• The connection of valve and instrument or the equipment best be adopted correspongding latex tube or silicone tube transition.

• For sulphide and halogen gas ，high content such as the percentage level or low content such as PPM level are not recommended to use

• As the composite membrane using two-component adhesive when composition,it can volatilize benzene, ketones, ethers, esters and other organic matter,So we should pay attention to the Aluminium-plastic composite membrane separating out the residual organic matter can pollute the sampling gas inside the bag,analysis data can cause interference.

• The gas sampling bag should be cleaned repeatedly replacement if it is reused. Suggest the same sample bag collecting samples of the same kind gas, don't mix

• The sample gas in sampling bag to save time should not be too long,specific saving time depend on detection limit of experimental analysis requirement、gas component species、temperature and humidity、pressure,etc:generally,for pure inert gas,sampling bag can be used as a temporary storage container and recommended storage time less than 72 hours;for standard gas、flue gas、ambient atmosphere,recommended storage time less than 24 hours.

• High purity nitrogen gas heating replacement can reduce the interference of organic deposition

•When sampling and cleaning,please do not exceed 80% of the calibration volume,take 1L sampling bag for example,suggest sampling volume is less than 0.8 L.

• There must be a blank sample compare for precise experimental analysis to do background deduction.

• For high-temperature high-pressure gas should be down to normal temperature and pressure to sample,specific treatment method according to actual situation.

• For negative pressure gas, should be sampled by appropriate power and flow rate vacuum pump.

• For the gas containing particulate matter、dust and aerosols,should adopt filter to prevent polluting the sample bag,then difficult to clean.