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
Hach Company QUANTAB Chloride Titrator Test Strips, 300 to 6000 ppm Chloride (0.05% to 1.0% NaCl)
A Quantab titrator consists of a thin, chemically inert plastic sheath. Laminated within the sheath is a strip impregnated with the components necessary to perform the individual titration. When the titrator is placed in the solution to be tested, fluid will rise up the strip by capillary action. A color change will occur on the strip, the height of which is proportional to the concentration of analyte present. The peak height is easily measured against a printed scale superimposed on the front side of the plastic sheath. Packaged 40 titrators/bottle.
CTL Scientific Supply Corp Qualitative Fluoride Test Paper for Fluoride: 20 mg/L F-, 200 tests
Fluoride test paper allows the rapid detection of fluoride ions in solutions containing hydrochloric acid. It is suitable for the safe and easy detection of dangerous hydrofluoric acid, which is used for example in computer chip production.
Cole-Parmer LaMotte 2951 Sanitizer Strength Qac Test Strips
Strips and color chart come supplied in a waterproof plastic vial.
BTNX Inc Rapid Response™ Xylazine Test Strip (Liquid/Powder) - 100 Tests
The Rapid Response™ Xylazine Test Strip (Liquid/Powder) detects the presence of xylazine in liquid and powder substances at a concentration of 1000 ng/ml or higher. This drug test can provide accurate and fast results as soon as 1 minute. For forensic use only. Not an IVD. Kit contains 100 Tests per kit.WARNING: This test does not evaluate drug safety or purity.The latest update to the Rapid Response™ Xylazine Test Strip (2.0) can be used to test cocaine samples and has shown no cross reactivity with lidocaine.This kit includes 100 individually packaged test strips sealed to prevent contamination, results interpretation card to aid in reading the results, and instructions. Every pouch features a QR code linking it to the BTNX Harm Reduction Resource Page – giving every user access to written and video instructions. T’s and C’s are printed on each strip to indicate the orientation of the Test and Control lines.
Hach Company Hach 651453H Aquachek Test, Total and Free Chlorine, Range 0 to 10 ppm (Pack of 12)
Total and free chlorineRange: 0 to 10ppmPack of 12Simply dip into a sample or hold under a liquid stream; for most products, in one minute or less, results are available to compare with the color chart included on the bottle's label.
Brim Technologies Sodium Thiosulfate Tablets, 30 mg / 500 count
Sodium Thiosulfate Tablets, 30 mg / 500 count used to remove residual chlorine from chlorinated water. Safe DChlor T30 Tablets are designed for collection containers from 100-1,500ml
Andwin Scientific EM PAPER P1196A
The test paper and color charts are ideal pH indicators. This product comes with three test fields and nonbleeding, noncontaminating indicator dyes. The test papers measure 6 x 5 mm and are sealed inside a 6 x 85 mm plastic strip.
Abraxis Microcystins Dipstick, 0.3 ppb Finished Drinking Water, 20-test
The Microcystins Strip Tests for Finished Drinking Water are rapid immunochromatographic tests designed for use in the qualitative screening of free Microcystins and Nodularins in finished drinking water. Chlorinated finished drinking water samples which are not tested immediately must be preserved (quenched) with sodium thiosulfate at the time of collection to remove residual chlorine. Source drinking water samples containing cyanobacterial cells may also be screened for the presence of free Microcystins and Nodularins using the Microcystins Strip Tests for Finished Drinking Water; an appropriate cell lysis procedure is required prior to analysis in order to screen for total Microcystins content (free and cell bound). The Microcystins Strip Tests provides only preliminary qualitative test results.