Convenient 20mL pH calibration buffers (pH 4, 7, and 10) stored fresh in pouches. Six of each.

Features:

• Easy to use, already made fresh pH buffers for calibration
• Helpful table printed on the pouch shows what the pH value should be vs. the temperature of the buffer solution measured
• Rinsing solution used for cleaning off the pH electrode after taking the next measurement from a different solution to prevent contamination
• Convenient pouch eliminates the need for a cup to store buffer or rinsing solution
• Certified Traceable to NIST Standards
• Each box contains 6 pouches of each buffer (pH 4.00, 7.00, &10.00), plus 2 Rinsing solutions

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