These 40mL Amber Glass VOA/TOC Vials are precleaned to EPA Class 2 standards (processed), ensuring high purity for volatile organic analysis (VOA), total organic carbon (TOC) testing, and other regulated environmental applications. Each 27.5 x 95mm vial is made from durable amber borosilicate glass to protect light sensitive samples, and comes pre assembled with a 24 414 white open top polypropylene (PP) screw cap and a 22mm natural PTFE/white silicone septa (3.0mm thick) for excellent chemical resistance and airtight sealing. Designed for environmental labs, water testing, and analytical procedures, these precleaned amber glass vials minimize contamination, reduce preparation time, and provide enhanced UV protection for sensitive samples. Supplied in a convenient 72 pack, they are ideal for use in EPA compliant sampling protocols. 40mL Amber Glass Vial, dimensions: 27.5 x 95mm Precleaned EPA Class 2, suitable for VOC, VOA, TOC analysis Optimized for use with automation systems Pre as