The PDF-60B digital oxygen index tester is used to evaluate the combustion performance of polymers under specified test conditions, that is, to determine the volume percentage concentration of the lowest oxygen at which the polymer just maintains combustion. It is suitable for the determination of the combustion performance of polyurethane materials, flame-retardant wood, plastics, rubber, fibers, foam plastics, thermal insulation materials, soft sheets, artificial leather and textiles. It can also be used to determine the performance of building materials B1 and B2. Product Description: The PDF-60B digital oxygen index tester is used to evaluate the combustion performance of polymers under specified test conditions, that is, to determine the volume percentage concentration of the lowest oxygen at which the polymer just maintains combustion. It is suitable for the determination of the combustion performance of polyurethane materials, flame-retardant wood, plastics, rubber, fibers, foam plastics, thermal insulation materials, soft sheets, artificial leather and textiles. It can also be used to determine the performance of building materials B1 and B2. Technical Parameter: Combustion cylinder specifications: inner diameter 100mm, height 450mm Flow measurement control accuracy: within ±5% Measuring range: 0---100%, /O2; Resolution: 0.1% /O2; Measurement accuracy: ±0.2%/ O2 Response time: <10S; Output drift: <5%/year;