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
Decon™ Phenazine pH Test Paper
Packaged in a convenient plastic dispenser with comparative color chart
Micro Essential Lab pHIZATEST™ Nitrazine Indicator Paper
Phenaphthazine 4.5–7.5 nitrazine indicator paper has been trusted by hospitals and physicians worldwide for more than 50 years.
Micro Essential Lab Hydrion™ Sanitizer: Chlorine Test Strip
Provides a simple, reliable and economical means to measure quarternary concentration of ammonium, chlorine and iodine sanitizer solutions
Micro Essential Lab Hydrion™ Sanitizer: Quaternary Test Paper
Provides a simple, reliable, and economical means to measure quarternary concentration of ammonium, chlorine and iodine sanitizer solutions
Micro Essential Lab Hydrion™ Quaternary Test Kits
Provides a simple, reliable and economical means to measure quaternary concentration of ammonium, chlorine and iodine sanitizer solutions
Micro Essential Lab Hydrion™ Sanitizer Test Kits: Quaternary Test Paper Kits
Provides a simple, reliable and economical means to measure quaternary concentration of ammonium, chlorine and iodine sanitizer solutions
Lovibond™ Process Chlorine Analyzer Reagents: Free Chlorine
Formulated to work with Hach™ CL17™ and other manufacturer's online chlorine analyzers
MilliporeSigma™ Reflectoquant™ Blank Test Strips
test strips without reagents Reflectoquant™
Cytiva Whatman™ Phenolphthalein Test Paper on Reel
Combines ease-of-use with accuracy and consistency for determination of the neutralization point in weak acid/strong alkali reactions.
MilliporeSigma™ Polyvinylpolypyrrolidone Divergan™ RS
Used as an excipient and for decolorization in beer and wine. MilliporeSigma™ Polyvinylpolypyrrolidone Divergan™ RS has a wide range of applications. In connection with Reflectoquant™ systems, it is applicable in the beverage industry.
MilliporeSigma™ MQuant™ Potassium Iodide-Starch Reagent Papers
High-tech, fast and simple means for semiquantitative testing
MilliporeSigma™ MQuant™ pH Indicator Congo Red Papers
Measure pH swiftly without using instruments
MilliporeSigma™ MQuant™ Aluminum Test Strips
High-tech, fast and simple means for semiquantitative testing