PT117 Paper Dust Tester is applied to test the dust of paper and cardboard. According QS authentication about paper packaging, this instrument can test: food parchment, translucent paper, food wrap paper, food board. Product features Adopting aluminum alloy sections as the light bracket, fluorescent lamp with lens hood and having elegant appearance. Product application Applying in testing the dust of paper and cardboard. According QS authentication about paper packaging, this instrument can test: food parchment, translucent paper, food wrap paper, food board. Technical standards GB/T1541 <Paper and board-Determination of dirt> Product parameter