... its properties up to 500 ºC and 180 ºC for Grade GF10.Usable as Pre-filter for membranes to prevent the ... : Grade GF A, Grade GF B, Grade GF C, Grade GF D, Grade GF F, Grade GF HBinder glass fiber: Grade GF 6, Grade GF 8,Grade GF 9,Grade GF ... ignition (dry weight)Analysis of aggressive mediaGrade GF 8 and Grade GF 9Used in the filtration of coarse particles Determination of ...