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 DPD Free Chlorine Reagent Powder Pillows, 25 mL, pk/100
For free chlorine determination by the DPD method. USEPA accepted for reporting drinking water analysis using Hach Method 8021. Ranges: LR: up to 2.00 mg/L; MR: 0.05-4.00 mg/L; HR: 0.1-10.0 mg/L. Sample Sizes: LR: 25 mL; MR: 10 mL; HR: 5 mL. Pack of 100 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 pH Paper, 3.0 - 5.5 pH Range
Provides simple, fast, economical method of pH measurement. Sharp color change for each 0.5 pH unit. Convenient for sample pH adjustments. Recommended for sewage water, not finished water. Five 4.6-meter (15') rolls per package.
Hach Company pH Test Kit, 7.4-9.6 pH, Model 17J
Simple, low-cost color disc method is the most accurate visual test kit method
Hach Company DPD Chlorine Color Disc
Fast, accurate visual method for determining chlorine concentrations.
Hach Company Chlorine (Free & Total) and pH Test Kit, Model CN-67
Control of chlorine and pH in pools and spas to maintain safe bathing conditions and to protect against system corrosion. Supplied with color discs and comparator for monitoring chlorine and pH, the Free & Total Chlorine and pH Test Kit provides more accuracy than test kits using color cubes.
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 Free & Total Chlorine Test Strips, 0-10 mg/L, Individually Wrapped, 250/pk
The most widely used disinfectant for drinking water, chlorine is also important for sanitizing swimming pools, cooling towers, other industrial equipment, and municipal wastewater. Its measurement and control are vital for both safety and economic reasons. Chlorine exists in water as "free" chlorine (hypochlorite) or "combined" chlorine (chloramines). The total chlorine test detects both forms. With Hach Water Quality Test Strips, technicians in the field can test many samples in only a few minutes, and make immediate evaluations on-site. No measuring, set-up, clean-up, or chemical handling are necessary. Hach test strips are also used in laboratories all over the world for pre-test screening-to detect the presence of materials that might interfere with lab testing. Strips are individually wrapped for maximum portability and stability. Contains 250 tests.*This product has not been evaluated to test for chlorine and chloramines in medical applications in the United States.
Hach Company Chloride QuanTab Test Strips, 300-6000 mg/L
Chloride is found in nearly all natural waters and affects human taste above 250 mg/L. High levels inhibit plant growth, and many industrial processes need to limit chloride concentration. Method/Chemistry: Quan Tab Test Strips. Range: 30 mg/L. Contains 40 tests.
Hach Company Free Chlorine Chemkey Reagents
Free Chlorine Chemkeys, range 0.04 - 4.00 mg/L Cl2. For SL1000 Portable Parallel Analyzer (PPA). Box of 25.USEPA accepted for reporting in drinking water analysis using Hach Method 10260.
Hach Company Titration Application Pack Amperometric: Free & Total Chlorine, Chlorine Dioxide, Chlorite, & Sulfite (Autocat)
Application Pack for the determination of free & total Chlorine, Chlorine Dioxide, Chlorite and Sulphite (Autocat). Suited for Titralab AT1000 Series, Automatic Titrator Models AT1122/AT1222.
Hach Company pH Chemkey Reagents (box of 25)
pH Chemkeys, range 6.3 - 9.0. For SL1000 Portable Parallel Analyzer (PPA).Avoid the hassle of pH probes and calibration in the field with our easy to use colorimetric pH Chemkey. The Hach SL1000 Portable Parallel Analyzer (PPA) performs the same tests with less than half the manual steps. Get highly accurate results, with less opportunity for errors, in a fraction of the time. Up to six parameters, tested in parallel. The SL1000 is a portable colorimeter that provides faster testing by using Chemkey reagents instead of powder pillows. All chemicals and processes are entirely contained inside the Chemkey.
Hach Company Iron (Total) Reagent Set, HR, Digital Titrator
For determination of iron by EDTA Digital Titrator titration. Hach Method 8214. Range: 100 - 1000 mg/L as Fe. Reagent Set Contains: Citrate Buffer Powder Pillows, Sodium Periodate Powder Pillows, Sulfosalicylic Acid Powder Pillows and 0.716 M EDTA Digital Titrator Cartridge. Approximately 40-100 tests.
Hach Company Chlorine (Total) Test Kit, Model CN-21P
Chlorine Test Kits are manufactured by Hach Company to ensure compliance with stringent quality control standards. Using the Drop Count Titration method, the CN-21P Chlorine Test Kit is used to determine high concentrations of chlorine in sanitizing applications. 10-200 mg/L; contains 100 tests.*This product has not been evaluated to test for chlorine and chloramines in medical applications in the United States.
Essendant Low-Speed High Productivity Floor Pads 7300, 17"" Diameter, Black, 5/Carton
3M¿s most aggressive floor stripping pad, the 3M™ High Productivity Pad 7300, is the best choice for removing four or more coats of finish buildup from hard floors. The stripping pad¿s open construction allows stripping solution to circulate through the pad, reducing loading. Continuous nylon filaments, uniformly coated with resin and abrasive particles, provide consistently high performance throughout the life of the pad. For rotary and automatic floor machines. For optimum conformability and pad-to-floor contact, the pad can be backed with a red buffing pad.