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CyberTech PHTester PH-107 Digital pH Meter Tester by CyberTech. $14.99. This digital pen style pH meter is an ideal instrument for any aquarium, the fishing industry, swimming pools, school laboratories, food & beverage etc. Please be sure to calibrate with buffer solution before use. Calibration: -- Immerse the tester up to the maximum immersion level in the PH 6.86 buffer solution. (Package Includes 2 pack of PH substance which makes 250 ml buffer solutions, PH 4 and PH ...

pH and Buffers: In this video Paul Andersen explains how buffer solutions maintain pH in a solution. A buffer solution is made up of a weak acid and its conjugate base. As strong acids or bases are added the pH remains stable. A good buffer solution has a pKa value equivalent to the pH and equal amounts of the weak acid and the conjugate base.

from Xpert Omatic

pH Meter Buffer Solution Powder Set for Precise pH Meter Calibration, Calibration Solution, Easy, Portable, Make 250 ml of Each 4.00, 6.86 and 9.18 pH Solution, 3 Count

Buffers is a scientific tool for designing buffer solutions for pH control. Buffers is useful both as a handy reference of available buffering agents and as an accurate, portable buffer calculator for chemical, biochemical and biological research.

from NISupply

10.00pH Meter Calibration Buffer Solution - 10.00 pH 4oz (4 ounces)/120ml Bottle

Item Meter Calibration Buffer Solution - Bottle ORDER AS MANY AS YOU NEED! We carry other pH Buffers too! Product Specs:* 125 ml

from Education

How to Make a Phosphate Buffer Solution

How to Make a Phosphate Buffer Solution: Phosphoric acid is also known as orthophosphoric acid or phosphoric(V) acid.