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
Sprayer Depot 20" X 1" WATER SENSITIVE PAPER
These specially coated papers are used for evaluating spray distributions, swath widths, droplet densities and penetration of spray. Water sensitive paper is yellow and is stained blue by exposure to aqueous spray droplets.
GOLD STANDARD DIAGNOSTICS HORSHAM LLC ANATOXIN-A DIPSTICK 5/TEST
NC1483746 ANATOXIN-A DIPSTICK 5/TEST
Research Products International Corp 12 Cap Strips for ClusterTubes and RKs, Non-S, 80 Strips
ClusterTubes are ideal for dilution, mixing, harvesting, culture assays, screening and STOR applications. RK systems are also suitable as a reaction vessel in robotic workstations or as a long-term STOR vessel in sample library. Tube are available as individual tubes, strips of 8 tubes or 12 tubes. RKs feature bold, BLK alphanumeric indexing and are made from autoclavable virgin polyproplyene; caps are polyethylene material; and RKed tubes are supplied with clear lid. Tube volume is 1.2ml. DNase, RNase, DNA, PCR inhibitor & pyrogen free Ideal for Automation, HTS SBS footprint; 8 x 12 formatShipping Weight: 5 lbsShipping Dimensions: 1.11 x 1.11 x 1.11Product usually ships within 24 hours.Research or further manufacturing use only, not for food or drug use.
Essendant Classroom Construction Paper Storage, 10 Compartments, 26.88 x 16.88 x 18.5, White
Sturdy corrugated box, ideal for storing and protecting sheets of construction paper neatly in the classroom. Organize by color to simplify gathering of materials. Easy to assemble.
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 Total Chlorine Chemkey Reagents (Qty 300)
Total Chlorine Chemkeys, range 0.04 - 10 mg/L Cl2. For SL1000 Portable Parallel Analyzer (PPA). 12 boxes of 25 (300 tests total quantity).USEPA accepted for reporting in drinking water analysis using Hach Method 10260.
Hach Company EDTA, Disodum Salt, 500 g
Ethylenediamine tetraacetic acid, Disodium Salt (TitraVer Hardness Reagent), ACS Grade, CAS No. 139-33-3, FW = 292.25, 500 g Bottle
Hach Company DPD Free Chlorine Reagent Powder Pillows, 5 mL, PK/1000
For determination of free chlorine by the DPD method. For use with Hach's Chlorine Visual Test Kits. Sample Size: 5 mL. Range: up to 3.5 mg/L Cl₂. Pack of 1000 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 Reagent Powder Pillows, 25 mL, pk/100
For total chlorine determination by the DPD method. USEPA accepted for reporting drinking and wastewater analysis using Hach Method 8167. Ranges: Low Range: up to - 2.00 mg/L; Mid Range: 0.05-4.00 mg/L; High Range: 0.1-10.0 mg/L. Sample Size: Low Range - 25 mL; Mid Range: 10 mL; High Range: 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 Chlorine (Total) Reagent Set for CN-21P
For determination of Chlorine (Total) by thiosulfate drop-count titration. Replacement reagent set for CN-21P Test Kit. Set includes Sulfamic Acid Powder Pillows, Potassium Iodide Powder Pillows and Sodium Thiosulfate Standard Solution (0.0246 N). Approx. 100 tests.
Hach Company Buffer Solution Kit, Color-coded, pH 4.01, pH 7.00 and pH 10.01, 20L
pH Buffer Standard Solution set for pH electrode calibration. Recommended 3-Pack of color-coded pH buffer solutions for easy identification. pH is ±0.02 at 25°C. 20 L Bag-in-box packages of pH 4.01, 7.00 & 10.01, with a collapsible inner bladder in a white corrugated cardboard box. Ideal packaging size for laboratories doing high volume pH testing.
Hach Company Chlorine Reagent Set (Total), Ultra Low Range DPD
For determination of ultralow Total Chlorine concentrations by the DPD Method. Hach Method 8370. USEPA accepted for drinking water and wastewater analysis. Range: 2 - 500 μg/L Cl₂. Reagents are ampuled for stability. Reagent set includes ULR Chlorine Buffer Solution (1.5 mL ampules), DPD Indicator Solution for ULR Chlorine (1.5 mL ampules) and Blanking Reagent for 20 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 Chloride QuanTab Test Strips, 30-600 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. Contains 40 tests.