XS Basic
XS BASIC: TRACEABILITY AND RELIABILITY XS solutions are traceable to the IUPAC pH scale through an unbroken chain of comparisons directly to NIST Standard Reference Materials. Each solution is accompanied by a Certificate of Analysis from Giorgio Bormac's in-house laboratory, ensuring quality, traceability and accuracy. To be used daily for verification and quality control of sensors and calibrations. In addition to our own XS Greenline brand, we also offer Reagecon's proprietary pH and Conductivity solutions. For extremely accurate measurements. Bottles (500 ml) of pH are available in various values: 1.677 NBS - 4.001 NBS - 6.881 NBS - 7.429 NBS - 9.225 NBS - 10.062 NBS - 4.000 DIN - 7.000 DIN - 10.000 DIN. Conductivity bottles (500 ml), valid for 6-18 months (except for the standard 10 microS/cm which is valid for 3 months) are available in the following values: 10 - 20 - 50 - 100 - 200 - 500 - 1,000 - 5,000 - 10,000 - 20,000 - 50,000 - 100,000 - 150,000 - 200,000 microS/cm.