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
MSC SPI Test Indicator Contact Point, 0.0390 in Ball Dia, Carbide, 13/16 in Length
This Test Indicator Contact Point from SPI features a 0.0390 inch ball diameter and is constructed from carbide. It has a 13/16 inch contact point length and is designed specifically for use with Starrett Test Indicators.
- Ball style contact point.
- Ball diameter of 0.0390 inch (1.00 mm).
- Contact point length of 13/16 "
- Tip diameter of 0.0390 "
- Made from carbide material.
MSC SPI Test Indicator Contact Point, 0.1180 Inch Ball Dia, Carbide
This SPI test indicator contact point features a 0.1180 inch ball diameter and is constructed from durable carbide. It is designed for use with Brown & Sharpe test indicators.
- Ball style: Ball
- Ball diameter: 0.1180 inch (3.00 mm)
- Tip diameter: 0.1180 inch
- Contact point material: Carbide
- Compatible with Brown & Sharpe test indicators
Hach Company Sofchek Hach 611213 Swimming Pool Spa Total Hardness Test Kit Strips
50 Strips/Bottle Tests for: Total Hardness Dip a SofChek test strip in your pool or spa water for one second and remove. You will get test results in seconds. For a clean and healthy pool, test the water at each end a minimum of twice a week. AquaChek offers a full line of test strip products to help keep your pool and spa water clean and healthy. Check out our user-friendly products so you can enjoy the results.Takes about 15-30 seconds to show results A must for a swimming pool or spa owners.Test for: - Total Hardness
Hach Company DPD Total Chlorine Reagent Powder Pillows, 10 mL, pk/300
For total chlorine determination by the DPD Method. USEPA accepted for reporting for drinking and wastewater analysis using Hach Method 8167. Range: 0.02 - 2.00 mg/L. Sample Size: 10 mL. Pack of 300 powder pillows.Boric Acid free!*This product has not been evaluated to test for chlorine and chloramines in medical applications in the United States.
Hach Company DPD Chlorine Color Disc
Fast, accurate visual method for determining chlorine concentrations.
Hach Company DPD Total Chlorine Swiftest™ Dispenser Refill Vial, approximately 250 Tests
For total chlorine determination by the DPD Total Chlorine method. For use with Hach Swiftest DPD powder dispenser. USEPA accepted for reporting for drinking and wastewater analysis using Hach Method 8167. Free chlorine and potassium iodide Swiftest refill vials also available.Range: 0.02 - 2.00 mg/L Cl2. Sample size: 10 mL. Approximately 250 tests per vial. *This product has not been evaluated to test for chlorine and chloramines in medical applications in the United States.
Hach Company Hypochlorite (Bleach) Reagent Set (HR), for Digital Titrator
For determination of Hypochlorite (Bleach) by Digital Titrator titration. Hach Method 10100. Range: 5 - 15% Cl2 (50 - 150 g/L Cl2). Stabilized sodium thiosulfate formulation.
Med Vet International Comply Sterilization Chemical Indicator Strip Steam 8 inch, 1250, 240/Box
Sterilization chemical indicator strips monitor multiple parameters Perforated in the middle of the strip to allow length to be adapted to pack size Larger portion of indicator ink for a greater area of monitoring in the pack to allow for detection of more sterilization failures
