Oakton WD-35653-02 pH pouches 7.00, 20 pouches/box

All Oakton pH buffer solutions are freshness dated, and standardized against NIST-traceable references to ensure quality. ±0.01 pH at 25°C.|OAKTON pH buffer solution bottles are labeled with the name and CAS number for all ingredients (for"Right-to-Know" requirements), and are supplied with an MSDS (Material Safety Data Sheet).|OAKTON pouches are convenient, air-tight pouches with high-precision calibration standards. Ideal for field use-take them to your test site for on-the-spot calibration. Each box contains twenty 20 mL pouches. Dimensions: 4.5"L x 5"W x 4.5"H (box). Shpg wt 1 lb per box.