SATRA STM 633AP Abrasive Paper The grit paper is used in conjunction with the Martindale particularly when industrial gloves are being tested to EN 388. The paper is a high quality grade grit 180.VerificationThis product is verified.Pack sizeSold in packs of 50 sheets.This item can be used with these machines:STM 633 SATRA/Martindale abrasion machineThis item can be used for these other test methods and standards:EN 388:1994 and 2003 Enquire this equipment