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
MSC Starrett Horizontal Dial Test Indicator, 0.80 mm Max, 0-40-0 Dial, Jeweled Bearing
The Starrett Series 3909 Horizontal Dial Test Indicator is designed for precision measurements, featuring a robust gear-driven design and jeweled movement for accuracy. Its durable satin chrome finish ensures longevity, and the adjustable, replaceable contact point enhances versatility. With a high-contrast dial and automatic contact point reversal, this indicator provides reliable performance for various laboratory and industrial applications.
- Precision gear-driven design
- Jeweled movement
- Satin chrome finish
- Adjustable contact
- Durable construction
- Replaceable contact
- High contrast dial
- Contact point reverses automatically
- Narrow body
- Contact point included
- Two dovetail clamps included
- Case included
MSC SPI Digital Electronic Drop Indicator, 2 in, 0.001500 in Accuracy
This Digital Electronic Drop Indicator is designed for precise measurements, offering a 2-inch maximum range and an accuracy of 0.001500 " It features a digital display with both flat and center lug back types, along with USB connectivity for data output. The indicator is calibrated and includes NIST traceability certification.
- MM/Inch measurement capabilities
- Zero, preset, ABS/INC, and tolerance functions
- Supports data output
- IP65 protection level
- Intuitive reading and high resolution
- Easy operation
- Calibrated with NIST traceability certification
- Powered by a CR2032 lithium battery
- Ceramic contact point material
MSC Starrett Electronic Indicator, 4 in Range, .0002 in Accuracy, .375 in Stem
This electronic indicator, part of the 2700 Wisdom series, provides precise measurements for various industrial and scientific applications. It offers a wide measurement range and high accuracy, making it suitable for detailed inspections and quality control.
- 4 inch / 100 mm measurement range
- Resolution of .001/.0005/.0001 inch or 0.02/0.01/0.002 mm
- Accuracy of .0002 inch / 0.004 mm
- .375 inch stem diameter
- #4-48 UNF thread type
- Flat back design
MSC SPI Electronic Travel Indicator, 25.4 mm Range, 0.001 mm Resolution, 1 ea
SPI Electronic Travel Indicator, 25.4 mm Range, 0.001 mm Resolution, 1 ea
MSC JT&M Indicator Positioner, Cast Iron Base, Hardened Post, 1 ea.
This indicator positioner and holder provides a stable platform for precision measurement applications. Designed for durability, the unit features a robust construction suitable for industrial dimensional measurement tasks.
- Constructed with a durable cast iron base and hardened post
- Offers a height adjustment range of 5/8 in. to 5 in.
- Compatible with 3/8 in. diameter indicators
- Manufactured in the USA
MSC Vidmar Drawer Pull Label, Plastic, 1.5 in, Paper/Vinyl Shield
This drawer pull label is designed for use with modular storage systems. It features a paper insert with a clear vinyl shield, providing a durable and customizable labeling solution. Made from plastic, this label has an overall height of 1.5 inches.
- Standard drawer pull paper label and clear vinyl shield
- Designed for modular storage systems
- Constructed from plastic
- Features a portable design
- 1.5 in overall height
- 0.75 in overall width
MSC Nomex Cover All, Air Filter Kit, 6-Piece, 1 Ea.
This air filter kit is designed for compatibility with specific Nomex coverall systems, ensuring optimal air quality and equipment protection.
- Contains 6 individual filter units
- Engineered for precise integration with compatible coverall assemblies
- Designed to maintain filtration performance during operation
Enterprise Technology Solutions Scholastic Teaching Resources First Readers Books, Level D, Gr PK-2, 100/Set, Multi
Jump-start your early reading program with this big collection of child-pleasing, First Little Readers Books correlated with Guided Reading Level D. Sturdy storage box contains 100 full-color books with five copies of 20 titles each with eight pages. Included teaching guide is packed with lessons, tips and literacy-boosting reproducibles. Books are a great, must-have resource for every pre-kindergarten to second-grade classroom.
