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 pH test strips, pH‑Fix 0–14, fixed indicator, 100/pk
pH‑Fix strips with chemically bound indicators are the bench mark for pH testing with test strips. The fixation prevents bleeding and therefore contamination of the sample. pH‑Fix 0–14 is also suitable for automatic evaluation with QUANTOFIX Relax.
Hach Company 5 in 1 Water Quality Test Strips
5 in 1 test strips are great for quick, on-site evaluations of water quality with reliable results on every test. These mulit-parameter test strips test for five water quality measurements on 1 strip. Contains 50 tests.Free Chlorine (0-10 mg/L)Total Chlorine (0-10 mg/L)Total Hardness (as CaCO3, 0-25 gpg and 0-425 mg/L)Total Alkalinity (as CaCO3, 0-240 mg/L)pH (6.2 - 8.4)
HF Scientific Inc Total Chlorine DPD Reagent Dispenser, 400 Tests (2x200)
This HF scientific portable dispenser accurately delivers the correct volume of DPD reagent for total chlorine. It is supplied with enough DPD powder for 400 tests. To use, simply invert the dispenser over the sample and press the button to dispense the reagent. The powder dissolves quickly in the sample, leaving no messy residue behind. It is a 10ml sample size, with formulations for use with HF scientific and Hach photometers.
HF Scientific Inc Free Chlorine DPD Reagent Dispenser, 400 Tests (2x200), 5ml Sample Size For HF scientific and Hach Photometers
This HF scientific portable dispenser accurately delivers the correct volume of DPD reagent for free chlorine. It is supplied with enough DPD powder for 400 tests. To use, simply invert the dispenser over the sample and press the button to dispense the reagent. The powder dissolves quickly in the sample, leaving no messy residue behind. It is a 5ml sample size, with formulations for use with HF scientific and Hach photometers.
Cole-Parmer High-Level Chlorine Test Strips, 0 to 10, 000 ppm; 50/Pk
Cole-Parmer High-Level Chlorine Test Strips, 0 to 10, 000 ppm; 50/Pk, Broad-range test strips handle high-level available chlorine testing up to 10,000 ppm, These strips are perfect for testing the available chlorine in bleach solutions—great for conformance to CDC surface disinfection recommendations. Check available chlorine at 0, 1000, 2500, 5000, 7500, and 10,000 ppm. Each test takes approximately 30 seconds. Packaged in a vial of 50 strips. Each vial is lined with desiccant to maintain freshness
Rpc E-Z Chek Sensitive Total Chlorine Test Strips, 0.1 ppm, 100/bottle
E-Z Chek Sensitive Total Chlorine & Chloramines Test Strips provide a quick and convenient means for indicating low levels of total chlorine in water. Monitoring between carbon tanks for chlorine/chloramines break through is the primary application for the E-Z Chek Sensitive.
Hach Company QUANTAB Chloride Titrator Test Strips, 30 to 600 ppm Chloride (0.005% to 0.1% 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.
Serim Research Corp Serim GUARDIAN™ BICARB pH II™ Test Strips
Serim BICARB pH II™ Test Strips test the pH of bicarbonate concentrate and/or final dialysate solutions (bicarbonate, acid and water). 100 Strips Bottle
CTL Scientific Supply Corp M8 CHEM DETECT PAPER 25SHT
M8 PAPER - CHEMICAL AGENTS LIQUID DETECTORS Pack Size: booklet of 25 strips
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.
POLLARDWATER COM Free Chlorine Test Strips 0-6 ppm 30/pk
Inexpensive and easy-to-use. Fast and accurate results. Perfect for quick chlorine checks in water, wastewater, and dichlorination applications. Easiest, most cost effective method for testing chlorine levels in water but may not meet requirements for reporting purposes. Range: 0 to 6 ppm. Steps: 0, 0.05, 0.1, 0.2, 0.4, 0.6, 0.8, 1.2, 1.5, 2.0, 2.6, 4.0, 6.0 ppm.
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.
Cole-Parmer Advantec Narrow Range pH Paper Booklet, Bromophenol blue (2.8-4.4 pH), 200/bx
These pH test paper booklets feature narrow pH unit graduation (0.2 to 0.4 pH) and can be used for severe pH measuring. Each leaflet is 1/4" x 2-3/4" (7 x 70-mm). There are 20 leaflets per booklet and 10 booklets per box.