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
Thomas Scientific Chlorine Test Kit (High Range) -- 1 drop 50 1000 or 5000
Chlorine Test Kit (High Range) -- 1 drop 50 1000 or 5000
CTL Scientific Supply Corp QUANTOFIX EDTA
QUANTOFIX EDTA 100 strips/pack Test strips for the semi-quantitative determination of EDTA, NTA and other complexing agents in solutions. Gradation of scale: 0-100-200-300-400 ppm EDTA
ASI STANDARDS Chlorine in Water Check Standard - Ultra Low Concentration, 5.00 mg/kg - 100 mL
Chlorine in Water manufactured and certified gravimetrically under the guidance of an ISO 9001 quality management system. When applicable, standards are traceable to NIST certified reference materials.ISO 17034 Certified Reference Material
ASI STANDARDS Chlorine in Water Check Standard 10 mg/kg - 100 mL
Chlorine in Water manufactured and certified gravimetrically under the guidance of an ISO 9001 quality management system. When applicable, standards are traceable to NIST certified reference materials.ISO 17034 Certified Reference Material
MSC PRO-SOURCE, AIR FILTER KIT, 6PC
This air filter kit is designed for effective air filtration, providing a comprehensive solution for maintenance requirements.
- Includes 6 pieces for complete system coverage
- Designed for reliable performance
