The GF Signet pH calibration kit is ideal for many calibration requirements. The kit includes conveniently packaged one pint bottles of 4.01 pH and 7.00 pH buffer solutions as well as 3 polypropylene mixing cups, and a box used as the cup stand.
GF Signet pH buffers are traceable to NIST standards and certificates are available upon request. They are accurate to within ± 0.01 pH units @ 25°C and have long term stability.
