Certificate of Analysis
Manufacturer: YSI Incorporated
Address: Yellow Springs Instrument Co., Yellow Springs, Ohio 45387 USA
Contact: Phone 937 767-7241 | Toll-Free 800 765-4974 | Fax 937 767-9353
Brand: YSI (a xylem brand)
Product Information
Product Category: Buffer and solid products
Product Model Number: 2357C
Lot Number: 250623GFS014699
Method: Verification of mass and pH (for buffers)
Test Results
| Determination | Specification | Result |
|---|---|---|
| Average mass | 6.00 – 6.70 g | 6.25 g |
| Average pH (buffers only) | 7.1 – 7.5 | 7.3 |
Compliance and Verification
The procedures used to manufacture and test this product have been verified by QA for compliance. The electronic signature below is representative of the Chemistry Technician testing and verifying conformity to acceptance criteria.
Completed by: Amanda Fenner
Date: 7/15/2025
[ISO 9001 Certified]
