PH buffer solution WZ-00653 series

Ideal for laboratory and field analysis All Oakton pH buffers are traceable to NIST standard reference materials Buffer solution lets you calibrate pH instruments to ensure accuracy If unopened, shelf life is 2 years • Oakton pH Buffer Solutions have pH/temperature tables printed on the labels for accurate calibrations (not on 60-mL, but included as insert) • Manufactured under ISO 9000 quality guidelines and traceable to NIST standards • If unopened, shelf life is 2 years; once opened, use pH 4 and pH 7 within 90 days, pH 10 within 30 days • Buffer Options: - pH 1.68 buffer available in clear - pH 4.01 buffer available in red - pH 6.86 buffer available in clear - pH 7.00 buffer available in yellow - pH 9.18 buffer available in clear - pH 10.01 buffer available in blue - pH 12.46 buffer available in clear