Oakton Buffer Solution, pH 7.00; 500 mL;

• 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 Buffer is colored for quick-glance recognition and does not effect accuracy or stability. As of April 2018, Oakton will be using yellow for the color-reference of the pH 7 buffer solution instead of green. Standardized against NIST-traceable pH references for meters with 0.01 resolution. Sold in individual bottles; 500-mL bottles are also available in cases of 12. 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 USA buffer value of pH 7.00