The GF Signet pH buffer kit is ideal for many calibration requirements. The kit includes 1 each of 4.01, 7.00, and 10.00 pH buffers in powder form. Each package, when mixed with water, makes 50 ml of solution.
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.
