All BEYA products are designed to meet all applicable technical performance standards of European, International and ISO approved. All the inks are the original development exclusively for our sterilization control systems, autoclave tape, bowie & dick test pack, multi variable steam indicator class 4, steam indicator class 6, Chemical indicator, Emulating indicator, Documentation labels, Pcd control test package, helix control test pack, indicator labels, autoclave indicator tape, indicator label gun, container seals, sterilization control, sterilization equipments, sterilization monitoring, bowie dick test, ecg electrodes, infection control, cssd, steam sterilization, sterilization pouch, as non-toxic, environmentally safe for usage and disposal. Our inks do not contain and lead or other heavy metal.