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
LaMotte™ Dual Range QAC Test Strips


Dual Range QAC Test Strip takes care of all testing needs on one strip.

Micro Essential Lab Economical Plastic pH Strips

Offer excellent color separation in the pH range; 50 pH test strips/pack.

LaMotte™ Chlorine Individual Test Kit


Measures for high chlorine levels using the Direct-Reading Titrator method, 1.0mL microburet calibrated to allow direct reading of the test result

Fisherbrand™ Plastic pH Test Strips

Offer excellent color separation in the pH range; 100 pH test strips/vial.
Fisher Science Education™ Chlorine Remover for Science Kits

Cconsumable for use with multiple projects and in science kits.
Eisco™ pH Test Strips

pH test strips for detecting pH ranging from 2.8 to 4.4.
MQuant™ Non-Bleeding pH Indicator Strips

Since the indicator does not bleed, the strip can be left in the measurement medium without contaminating it.
Eisco™ Blue Litmus pH Test Paper: Acid Indicator

Indicates the presence of an acid with a pH between 4.3-6.8
Eisco™ Red Litmus pH Test Paper: Base Indicator

Identifies a base or alkaline material with a pH of 6.8-8.1
United Scientific Supplies pH Paper


Determine pH of wide range of solutions!
Eisco™ Cobalt Chloride Paper Test Strips

For detecting the presence of moisture in a given area
Eisco™ Methyl Violet Paper Test Strips

A quick acting, narrow range pH test paper that transitions from yellow at pH 0.2 to violet at pH 2.0
Eisco™ Neutral Litmus Test Paper

Qualitatively indicate if a solution is neutral, acidic, or basic without providing a specific pH value for the solution
LaMotte™ Insta-Test™ Ammonia Test Strips


For detection of ammonia in water
LaMotte™ Chlorine Individual Test Kit


Direct reading titrator method results in reliable, accurate reading
LaMotte™ Chlorine DPD #3 Instrument Grade Tablets


Economical choice for your chlorine testing needs
Insta-Chek™ Wide-Range Paper Dispenser

Single color match for each pH value.
LaMotte™ Insta-Test™ Peracetic Acid Single Factor Test Strip


A convenient way to quickly test water for peracetic acid.
LaMotte™ Five-Way Natural Water Test Strips


Five way testing for drinking water
Innovating Science™ Red Cabbage Juice pH Indicator

Learn about acids, bases, and pH indicators with this Red Cabbage Juice pH Indicator.
LaMotte™ Insta-Test Peroxide Low Range Test Strips


Test strips for monitoring hydrogen peroxide solutions, 0-50ppm
LaMotte™ DPD Free Chlorine Reagent Refills


The liquid alternative to DPD tablet refills
LaMotte™ DPD Chlorine Secondary Standards Kit for LaMotte Colorimeters


Used for periodically rechecking calibration of LaMotte Colorimeters
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