... 430.2Max UV ABSORPTION WAVELENGTH: 375 nm (ethanoll)Max OPTICAL EMITTING WAVELENGTH: 435 nmEXCUTIVE STANDARD: Q/LQH009-2003SPECIFICATIONS: ItemIndicesAppearancelight ... point201-202Ash≤ 0.1Volatile content≤ 0.4% PROPERTIES: Optical brightener OB is a kind of benzoxazole compound, lt is ... thermoplastic plastics, PVC, PS, PE, PP, ABS, Acetate fiber, paint, coating, printing ink, etc. It can be added ...