pH-Fix 7.0-14.0 Indicator Sticks 6x85mm (10x100 pcs.)

These pH indicator sticks are ideal for pH determination in the pH 7 to pH 14 range. The rigid plastic sticks measure 85 mm (length) x 6 mm (width) and feature four separate pH test zones to cover the intended pH range. Each test zone has been infused with a non-bleeding pH indicator compound, optimized to prevent contamination of the solution and allow the measurement of highly alkaline or weakly buffered solutions. When testing pH, the strips produce a permanent color change even when left in place, such as when testing low ionic strength solutions. An immediate result is obtained by comparing the colors of the four test zones with the enclosed pH color chart. The pH color chart exactly matches both the color and the position of the pads on the strips. The results are easy to interpret and can be reliably determined, as the pH gradations are in 0.5 increments. The pH indicator sticks are suitable for many applications, both in the laboratory and in the field. They have the advantage over other pH measurement methods in that they do not require additional equipment compared to liquid test kits and digital meters. This makes them more portable, durable, and easily replaceable. The pH indicator sticks are supplied in packs of 100 disposable sticks. They can be stored unopened for 2 years without sunlight.