PH Buffer Capsule for calibration of pH, contains four capsules for each of the 4, 7, and 10 pH buffers, making a total of 12 capsules. The set also includes a small bottle of universal indicator with mold inhibitor, Has to be added to 100 ml of distilled water
118mL. Sterile, buffered, isotonic, saline solution. Single-use. Twist-off tabs with no seals to remove, no leaking caps. Twist-off tab top is tamper-resistant, yet easily removed in an emergency. Bottle manufactured from FDA grade polyethylene.
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