Short thread screw cap, 9 mm thread, with liner are suitable for use with short thread (11.6 X 32 mm) autosampler vials (9 mm thread). The PTFE/rubber septa are compatible with most organic solvents until pierced and are not recommended for aromatics, carbon disulfides, chlorinated solvents, hydrocarbons. The blue polypropylene cap can withstand temperature up to 135C.