Preassembled with PTFE/Silicione-lined open top black polypropylene closures. Available in standard, precleaned, or precleaned/certified in accordance with recommended E.P.A. Protocol.
CLASS 1: (Standard) Containers are assembled with liner and closure without washing treatment.CLASS 2: (Precleaned) Containers are processed according to EPA recommended wash procedures. Washed with laboratory grade biodegradable, non-phosphate detergent, rinsed with ASTM Type I De-ionized water, oven dried, and assembled in a contaminate-free environment. The exterior of each case is labeled with a lot number. Each case contains a copy of wash "Standard Operating Procedure."
CLASS 3: (Certified) Containers are processed according to EPA recommended wash procedures. Washed with laboratory grade biodegradable, non-phosphate detergent, rinsed with ASTM Type I De-ionized water, oven dried and assembled in a contaminate-free environment. The exterior of each case is labeled with a lot number. Each case contains a "Certificate of Analysis." An independent laboratory is used to certify the container's cleanliness, assuring impartial results.