All ProWeigh filters are prepared according to Standard Methods requirements. 90mm binderless glass fiber filters are weighed, washed 3 times in deionized water, dried at 105C and weighed to 0.1mg. Filters come packaged in a labeled aluminum pan with the weight of the filter printed on the label. DoubleWeigh filters are quality-tested to guarantee their weight stability. They are redried and reweighed to ensure a stable weight. In addition, the filter weight and ID number are printed in code 128 bar coding.

Size: 90mm
Reproducibility: +/-0.2mg
Accuracy:+/-0.4mg max
Reweigh%: 100%

Pack of 100.