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
Macherey-Nagel™ Tritest™ pH Paper Roll
Featuring three indicator zones for the highest accuracy reading. Macherey Nagel™ Tritest™ pH Paper Rolls give the user the most precise readings possible in pH measurement.
Macherey-Nagel™ Aquadur™ Test Strips
Determine water hardness quickly, easily and reliably. The Aquadur™ test strips provide a convenient dip and read procedure and a clear colour changes from green to red ensures reliable results within seconds.
Macherey-Nagel™ Quantofix™ Nitrite Test Strip Kits
Allows for the quick and easy determination of nitrite in solutions. Macherey Nagel™ Quantofix™ Nitrite Test Strip Kits are semi-quantitative, come pre-calibrated and contain all necessary equipment and reagents.
Macherey-Nagel™ Lead Acetate Test Paper
Provides for the quick and easy determination of lead hydrogen sulphide in samples. Macherey Nagel™ Lead Acetate Test Paper is toxic and needs to be declared as hazardous.
Macherey-Nagel™ Potassium Iodide Starch Qualitative Test Paper
Allows the quick and easy detection of strong oxidizers such as nitrite and free chlorine. Macherey-Nagel™ Potassium Iodide Starch Qualitative Test Paper is also used to control diazotization reactions. Potassium iodide starch paper is available in two formats: 5m reel or 70 x 20mm test strips.
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.
Macherey-Nagel™ Phosphatesmo MI Qualitative Test Paper
Macherey-Nagel Phosphatesmo MI Qualitative Test Paper, Color Indicator: White to yellow, For Use With: For detection of Alkaline Phosphatase in milk, Quantity: 50Pack, Storage Requirements: 2 to 8 deg.C
Macherey-Nagel™ Oil Test Paper
Allows the rapid, reliable and qualitative detection of oil contaminations of water and soil. Macherey Nagel™ Oil Test Papers' sensitivity largely depends on the nature of the respective hydrocarbon.
Macherey-Nagel™ Quantofix™ Peroxide 1000 Test Strip Kits
Allows for the quick and easy determination of peroxide levels in solutions. Macherey Nagel™ Quantofix™ Peroxide 1000 Test Strip Kits are semi-quantitative, come pre-calibrated and contain all necessary equipment and reagents.
Lovibond™ Powder Packs™ for Free Chlorine
Premeasured unit dose DPD reagents for water quality testing
Fisherbrand™ Grade 911 Universal pH Indicator Paper
Provides rapid and precise readings for measuring pH.
LaMotte™ Insta-Test™ Single and Multi-Factor Test Strips
For water quality testing
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.
