Gravimetric analysis
Gravimetric analysis
> Pollutant weight detection is relatively simple for inspectors, but in order to test the weight accuracy well, inspectors also need to be careful enough.
> Necessary constant weight testing and reliable environment.
Factors affecting the accuracy of weight test:
◆ Balance resolution accuracy
◆ Balance mounting position
◆ Experimental environment
◆ Drying temperature
◆ Drying time
◆ Filter membrane selection
Drying temperature and time test - constant weight of the filter membrane (must be tested once before testing)
The natural convection oven is used to measure the cleanliness weight. In order to shorten the detection time and improve the detection efficiency, the baking filter membrane can be weighed in advance and reserved.
Weight detection is time-consuming and labor-intensive. To reduce the detection time, FASMEI has developed a rapid drying machine for filter membranes.
Drying + balancing time can be shortened from the original 90min to 10min, greatly improving the detection efficiency.