ColorpHast pH Testing Strips - Six Pack of Boxes

Package Size: Six boxes of 100 pH Strips per Box = 600 pH Strips
 
Get accurate results - every time!
 
The indicators in colorpHast® pH testing strips give you such sharp, clear color
changes, it's easy to make accurate readings. All you have to do is match the
color scale on the side of the colorpHast® package to the pH test strips.
 
Common liquids pH strips are used on: 
- Solutions
- Drinking Water
- Salvia
- Urine   
 
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Retail: $114.95 Special: $103.44



If you make a lot of pH measurements, make them colorpHast pH strips!

When you consider that pH is the most frequently made measurement in the analytical laboratory, the importance of making you pH measurements quickly and accurately is clear: it saves you time and trouble. And for a growing number of chemists, the fastest, most accurate way to make pH measurements is with colorpHast pH strips. Whether you work in the lab or in the field colorpHast pH strips meet your testing needs. They come in a wide variety of ranges for different samples and applications. All of them are manufactured by merck KGaA Darmstadt, Germany, to ISO 9001 quality standards to provide you with maximum consistency. With colorpHast pH strips, you're bound to succeed.

Covalently bound pH strip indicators won't bleed or dilute. Test 0-14 pH range with a single measurement or try one of your narrow range pH strips that will pinpoint the pH you're trying to measure. Perform pH tests in seconds for just pennies a test. Get accurate measurements in weakly buffered, turbid and even colored samples. Carry pH strips in your pocket for use in the lab or field colorpHast pH strips give you confidence in your results. With colorpHast pH strips, you can test the pH of trace samples without worrying about contamination. You can even test weakly buffered, colored or turbid samples and still get accurate results. For samples such as mud and sludge, all you have to do is dip the pH strip, rinse and read the result.

When ordering pH test strips, be sure to select the proper pH range you're looking to test from the chart below. Once you decide which range you're interested in, be sure to open the pH range selection box at the top of this page and select the strips you want to order.  
colorpHast Type

pH Range

Sensitivity pH Units

Universal
Four squares with different indicators on each strip

0 - 14.0

0.0, 1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0, 9.0, 10.0, 11.0, 12.0, 13.0, 14.0


Intermediate
Range

Three squares with different indicators on each strip

2.0 - 9.0
0.0 - 6.0
5.0 - 10.0
7.5 - 14.0

2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5.0, 5.5, 6.0, 6.5, 7.0, 7.5, 8.0, 8.5, 9.0
0.0, 0.5, 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5.0, 5.5, 6.0
5.0, 5.5, 6.0, 6.5, 7.0, 7.5, 8.0, 8.5, 9.0, 9.5, 10.0
7.5, 8.0, 8.5, 9.0, 9.5, 10.0, 10.5, 11.0, 11.5, 12.0, 12.5, 13.0, 14.0


Narrow
Range

One rectangle with a single indicator on each strip

0 - 2.5
2.5 - 4.5
4.0 - 7.0
6.5 - 10.0
11.0 - 13.0

0.0, 0.5, 1.0, 1.3, 1.6, 1.9, 2.2, 2.5
2.5, 3.0, 3.3, 3.6, 3.9, 4.2, 4.5
4.0, 4.4, 4.7, 5.0, 5.3, 5.5, 5.8, 6.1, 6.5, 7.0
6.5, 6.8, 7.1, 7.4, 7.7, 7.9, 8.1, 8.3, 8.5, 8.7, 9.0, 9.5, 10.0
11.0, 11.5, 11.8, 12.1, 12.3, 12.5, 12.8, 13.0

DIRECTIONS FOR USE:
1. Remove the strip from the box.
2. Immerse the reaction zone of the strip into the solution for approximately 3-5 seconds or until there is no further color change.**
3. Remove the strip from the solution, wiping the strip along the edge of the vessel to remove excess liquid from the strip.
4. Compare the reaction zones to the color chart on the box holding the strip to the top of the box with the reaction zones to the bottom of the box.
5. Record the results of the closest matching color to the strip.
** For weakly buffered solutions, an extended period of time may be necessary. In these cases, immerse strip until there is no further color change (1-10 minutes). Because the indicator is covalently bound to the colorpHast® strip, the test strip may be immersed in the solution for longer periods of time if necessary.
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