Hach standard calibration buffers are available in color-coded liquids. They are recommended for automatic calibration and assure accuracy (±0.02 pH units) Item 2283449 - SOLUTIONS (color-coded) pH is ± 0.02 at 25°C.pH 4.01 (color-coded red) (NIST) 500mL – $3.50 ea Item 2283549 - SOLUTIONS (color-coded) pH is ± 0.02 at 25°C.pH 7.00 (color-coded yellow) (NIST) 500mL – $3.50 ea Item 2283649 - SOLUTIONS (color-coded) pH is ± 0.02 at 25°C.pH 10.00 (color-coded blue) (NIST) 500mL – $3.50 ea |
jueves, 8 de julio de 2010
Buffer Solutions OFFER
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