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ETI pH Buffer Capsules
These are the pH Calibration Buffer Capsules. They are already pre-made and are available in three different values. They are suitable for checking pH instrumentation and pH electrodes on our range of pH meters and testers. These handy buffer capsules are available in three different standards of 4.00pH, 7.00pH and 9.00pH. Each capsule can be mixed with distilled water to make 100ml of solution. They come supplied in packs of 10 capsules.
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