Berkshire's two new sampling swabs have a unique, semi-flexible internal paddle design providing greater surface coverage and a grooved handle for improved usability and easy snapping. The Lab-Tips Low TOC Swab is a 2-ply polyester swab offering ultra-low total organic carbon (TOC) levels at less than 50 ppb (µg/L). The swabs also have accompanying certificates of conformance available online by lot number. The Lab-Tips 2-ply Polyester Sampling Swab is a high-performing economical model ideal for surface and environmental sampling required by USP <797>. The swabs are laundered and packaged in a Class 10 (ISO Class 4) cleanroom, and are available in single packs of 20 swabs or in cases of 25 packs.