Abdos Ria Vial Caps / Plastic Test Tube Caps are designed to fit Abdos Ria Vials and test tubes. These caps are manufactured from various high-quality plastics, including High-Density Polyethylene (HDPE), Polypropylene (PP), and Low-Density Polyethylene (LDPE), to provide a secure closure for sample storage and handling. They are available in multiple sizes (12 mm, 13 mm, and 16 mm) to correspond with the different vial diameters. Amber versions are also available for protecting light-sensitive samples. Key Features & Benefits Material Variety: Available in HDPE, PP, and LDPE to suit different laboratory requirements. Multiple Sizes: Offered in 12 mm, 13 mm, and 16 mm sizes to fit a range of Abdos test tubes and ria vials. Light-Sensitive Option: Amber caps are available for use with light-sensitive samples. Certified Pure: The products are certified free of DNase, RNase, endotoxins, heavy metals, ATP, pyrogens, and human DNA, and are also GC/MS tested. IVD Certified: These caps are IVD certified (IVD 98/79/EC). Autoclavable Options: PP caps can be autoclaved, while HDPE and LDPE caps are non-autoclavable.