Standard Opening gc laboratory vials with high quality Sigma-Aijiren hplc lab vials Sigma vial for hplc with high quality-Aijiren Vials for HPLC1-4mL Autosampler Vials for HPLC, UPLC, GC 16mm, Sigma vial for hplc with high quality effort to filter 1 to 8 sam Material: USP Type 1, Class A, 33 Borosilicate Glass Volume: 2ml (standard volume) 1