I-CHEM Certified™ 200 and 300 series glass bottles are processed to meet or exceed 'US EPA Specifications and Guidance for Contaminent-Free Sample Containers' and come with sample-analysis labels, unattached.

I-CHEM™ 100 Series bottles, for general use, are not processed or certified, and do not include sample-analysis labels.

I-CHEM Certified™ 300 series bottles include a Certificate of Analysis with a bar-coded production number in every case. Each bottle in the 300 series has a manually readable bar-code lot label for absolute traceability.