pH Paper and other Test Strips
pH Paper and other Test Strips
Single-use test materials used to rapidly and semi-qualitatively determine the acidity or alkalinity of liquids or to measure another parameter or substance; may include tests for starch, chlorine, and molybdenum; usually via the use of color-based reactions.
pH Papers, pH strips, pH sticks, and pH test kits are used in laboratory, industrial, and educational environments to qualitatively assess pH levels or monitor acid-base titrations in a range of sample types.pH Buffer reference standards are used for the accurate calibration of pH meters and monitors for far more precise and quantitative pH measurement.
pH Test papers are supplied either as rolls, tear-off strips, or sticks. They are impregnated with indicator dyes that change color at a specific pH. In some products, indicator dyes are covalently linked to cellulose fibers to avoid bleed-out (leaching) and contamination of the test sample.
Some pH papers indicate simple acid or base conditions with a single red-to-blue color change (also called litmus papers). Universal pH papers and strips contain a combination of indicators that cover a range of pH values up to and including 0 to 14 in a single test. The observed color change is checked against a comparison chart supplied with the papers.
Alternatively, for metered assessments of pH, standard or reference pH buffers are used to calibrate pH meters and other electrochemical sensors.
Standard Buffer Characteristics:
• Typically supplied at fixed values of pH 4.01, pH 7.00, and pH 10.01
• May be color-coded for easy and quick identification
• Certified to their nominal pH and accuracy at a specified temperature (typically 20°C)
• Supplied as ready-to-use solutions or concentrates
• Contain antifungals for extended shelf life
Fisherbrand™ pH Indicator Paper Sticks
Measure the pH value quickly and easily directly at the point of interest. Fisherbrand™ pH indicator paper sticks are ready to use at any time and don't need any calibration, set-up or maintenance. Therefore, they are perfect in a variety of environments such as: chemical laboratories, industry, dairies, production, universities, schools and food processing.
Fisherbrand™ Universal pH Indicator Paper
Provided with a color table to determine color change.
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Fisherbrand™ pH Indicator Paper Sticks
Measure the pH value quickly and easily directly at the point of interest. Fisherbrand™ pH indicator paper sticks are ready to use at any time and don't need any calibration, set-up or maintenance.
Macherey-Nagel™ Duotest™ pH Paper Roll
Featuring two indicator zones for more accurate readings. Macherey Nagel™ Duotest™ pH Paper Rolls give the user the best possible accuracy in pH measurement.
Cytiva Whatman™ pH Indicator Papers, CF Strips
Provides an extremely clear and accurate visual pH value using four different segments of dye-impregnated indicator papers. Whatman™ pH Indicator Papers, CF Strips use dyes that are chemically bonded to the paper and cannot be leached into solution.
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Fisherbrand™ pH Indicator Paper Strips
Provides optimal quality and reliable readings. Fisherbrand™ pH Indicator Paper Strips are supplied in plastic reels that ensure long-term stability and protection against many external influences.
Fisherbrand™ Universal pH Indicator Paper
Provides rapid and precise readings. Fisherbrand™ Universal pH Indicator Paper include a color scale printed on the cover for convenience.
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Fisherbrand™ Universal pH Indicator Paper
Provides rapid and precise readings. Fisherbrand™ Universal pH Indicator Paper include a color scale printed on the cover for convenience.
Fisherbrand™ pH Indicator Paper Roll
Ready to use universal indicator papers are supplied in rotary lid boxes to ensure protection against external influences.
Cytiva Whatman™ pH Indicators
Provides rapid determination of pH values. Whatman™ pH Indicators are impregnated with a mixture of several indicators that change color when they come in contact with a particular sample solution.
Promotions are available
Macherey Nagel pH-Fix pH Indicator Strips
Highly appreciated standard strips for many pH testing applications.
Macherey-Nagel™ Quantofix™ Peroxide 100 Test Strip Kits
Allows for the quick and easy determination of peroxide levels in solutions. Macherey Nagel™ Quantofix™ Peroxide 100 Test Strip Kits are semi-quantitative, come pre-calibrated and contain all necessary equipment and reagents.
Macherey-Nagel™ Quantofix™ Peroxide 25 Semi-quantitative Test Strips
Ideal to test low levels of peroxide in solutions. Macherey Nagel™ Quantofix™ Peroxide 25 Semi-quantitative Test Strips use an easy dip-and-read procedure and provide reliable results within 15 seconds.