Whatman 2613-991 pH Indicator Strips, 6mm x 80mm, pH Range 0.0-14.0, Color Bonded, 100/pk

These strips are used for quick and reliable pH testing across a wide variety of samples, including water, chemicals, food products, and environmental samples. They provide instant visual results without the need for electronic meters.

Color-bonded strips use chemically fixed indicator dyes that do not leach into the sample, preventing contamination and ensuring consistent readings. This design also produces clearer color transitions for easier interpretation.

Each strip contains multiple color indicator zones along with a comparison chart. After dipping the strip into a sample, you match the resulting color pattern to the chart to determine the pH value, typically in 1 pH unit increments from 0 to 14.

These strips measure 6 mm × 80 mm, cover a full pH range of 0–14, and come in a pack of 100 strips. They are mounted on plastic supports for durability and ease of handling during testing.

pH indicator strips are portable, cost-effective, and require no calibration, making them ideal for field use or quick testing. They deliver immediate results and are especially useful when testing multiple samples rapidly.