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
CTL Scientific Supply Corp WATOR, 50 PIECES
WATOR - Indicator paper for the determination of water in butter according to DIN 10 311. Box of 50 pieces (each piece 78 x 40 mm). On contact with water WATOR develops dark-blue spots, the size and number of which is correlated to the distribution of the water in the butter.
CTL Scientific Supply Corp LITMUS PAPER BLUE,PK/6 DISP
LITMUS PAPER BLUE - Pack of 6 dispensers each with a 5 meter roll of paper.
Hach Company Iron Test Strips (Total Dissolved Iron), 0-5 mg/L
In domestic water supplies, iron can do great economic damage by staining laundry and porcelain fixtures and by producing an off taste in beverages. In water supplies used for commercial beverage production, low levels of iron are critical. Hach's test strips provide the most easily-used method for determining low to mid-range iron concentrations. 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. Contains 25 tests.
Hach Company Free & Total Chlorine Test Strips, 0-10 mg/L
The most widely used disinfectant for drinking water, chlorine is also important for sanitizing swimming pools, cooling towers, other industrial equipment, and in the treatment of 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). 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. Contains 50 tests. *This product has not been evaluated to test for chlorine and chloramines in medical applications in the United States.
Hach Company Copper Test Strips, 0-3 mg/L
Copper exists in water as a soluble salt or as suspended solids. Concentrations exceeding 0.1 mg/L are useful for controlling algae and plankton growth. Quantities ranging from 0.02 to 0.1 mg/L are toxic for some fish, so its use for treating fish disease requires careful monitoring. 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. Contains 25 tests.
Hach Company Chlorine (Free and Total) Reagent Set, DPD, 10 mL
For determination of Chlorine (Free and Total) by the DPD Method. Hach Methods 8021 and 8167. Range: 0.02 - 2.00 mg/L Cl₂. Sample Size: 10 mL. Reagent Set contains DPD Free Chlorine Reagent and DPD Total Chlorine Reagent Powder Pillows for 100 tests each.Boric Acid free!*This product has not been evaluated to test for chlorine and chloramines in medical applications in the United States.
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.
Hach Company Total Chlorine Test Kit, Model CN-70T
Simple, low-cost color disc method is the most accurate visual test kit method.*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.
Hach Company Chlorine (Free and Total) Reagent Set, DPD FEAS, Digital Titrator
For determination of Chlorine (Free and Total) by Ferrous Ethylenediammonium Sulfate Digital Titration, using DPD indicator. Range: Up to 3.00 mg/L Cl2. Reagent Set includes: DPD Free Chlorine Reagent Powder Pillows, DPD Total Chlorine Reagent Powder Pillows, Ferrous Ethylenediammonium Sulfate Titration Cartridge, 0.00564 N. Approximately 40-100 tests.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 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 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.
Enterprise Technology Solutions Vtech Phone System,DECT 6.0, 3 Handset, SR/BK
Expandable cordless telephone features three cordless handsets with speakerphones, digital answering system, Voice Announce Caller ID, and HD Audio for a fuller and clearer sound. DECT 6.0 digital technology offers dependable security and range in cordless phones. Interference-free phone system delivers crystal-clear conversations and won't interfere with wireless networks and other electronic devices. Digital security protects you from identity theft by digitizing and encrypting your calls to prevent eavesdropping. Answering system offers 14 minutes of recording time. Phone system is expandable up to 12 handsets using only one phone jack. Conference an outside call between handsets. Each handset features a Push-to-Talk intercom and backlit keypad and display. Phone system includes a 50 name/number Caller ID memory and 50 name/number phonebook directory for frequently called numbers. Language prompts include English, Spanish and French. Phone system includes a wall-mount bracket.