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 Vestil Floor Lock, 5.625 in Retracted Height, 7.75 in Extended Height
This economical floor lock helps to stabilize mobile equipment during loading and unloading operations. It is suitable for keeping carts, trucks, workbenches, and other portable equipment stationary. The lock is spring-loaded and features a non-skid rubber foot pad to ensure equipment remains stationary. It is constructed from heavy-duty steel and has a bright zinc plated finish.
- Stabilizes mobile equipment during loading and unloading.
- Ideal for keeping carts, trucks, and other portable equipment stationary.
- Includes a spring-loaded lock and offers a non-skid rubber foot pad.
- Features a bright zinc plated finish for strength and durability.
MSC SPI Drop Indicator Contact Point Extension, 3/4 in, #4-48 Thread, Steel
This drop indicator contact point extension is made of steel and features a #4-48 thread. It is designed for use with AGD Dial Indicators, providing an extended reach for various measurement applications.
- Features a #4-48 thread for secure attachment
- Compatible with AGD Dial Indicators
- Constructed from durable steel
- Provides extended reach for testing with any indicator on a dial indicator
- Has a 7/32 inch diameter
MSC SPI Test Indicator Contact Point, 0.0780 in Ball, Carbide, 1-3/4 in Length
The product is a Test Indicator Contact Point with a 0.0780 in ball diameter and a carbide contact point, measuring 1-3/4 in length. It is designed for use with test indicators.
- Ball style
- 0.0780 in ball diameter
- 1-3/4 in contact point length
- Carbide contact point material
- Designed for use with test indicators
MSC Value Collection Gage Block, 0.4 in, Steel, Grade 0, NIST Traceable
This 0.4 inch square steel gage block is designed for precision measurements. It features Accuracy Grade 0 and includes NIST Traceability Certification, ensuring high accuracy and reliability for calibration, layout, and machine setup applications. Made from durable steel, this gage block provides consistent performance for demanding technical and industrial environments.
- Includes NIST Traceability Certification
- Designed for precision measurements
- Features Accuracy Grade 0
- Ensures high accuracy and reliability for calibration, layout, and machine setup applications
- Made from durable steel
- Provides consistent performance for demanding technical and industrial environments
MSC Mitutoyo Mechanical Indicating Micrometer, 1-2 inch, 0.0001 inch Graduation, IP54
This mechanical indicating micrometer is designed for precise measurements in various applications, including three-wire measurements of pitch diameter for precision screws and parallelism measurements. It features a retractable anvil for faster workpiece throughput and carbide-tipped measuring faces for enhanced durability. The instrument is equipped with an IP54-rated housing, providing protection against dust and water, and comes with a fitted plastic case for convenient storage and transport.
- Retractable anvil allows for faster workpiece throughput.
- Carbide-tipped measuring faces resist wear.
- IP54-rated housing provides protection against debris, dust, and water.
- Ratchet-stop mechanism ensures uniform pressure for repeatable measurements.
- Satin chrome finish resists rust and reduces glare.
- Supplied with a fitted plastic case.
Enterprise Technology Solutions Hewlett-Packard Fuser Kit, 110V, LJ M855/M880, 100,000 Page Yield
HP LaserJet 110V Maintenance Kit (Fuser) is designed for HP Color LaserJet Enterprise M855 and Color LaserJet Enterprise Flow MFP M880. It ensures your HP printer remains in working condition and continues providing your workers with the highest print quality possible. Maintenance kit yields approximately 100,000 pages. It includes user-replaceable parts that work with your HP printer to prompt you when they require maintenance.
Innovative Research Inc Humn Ttl Plsmngn Kit
Human Total Plasminogen ELISA Kit - This kit is for the quantitative determination of total plasminogen and plasmin in human plasma, serum, urine, cell culture media, or tissue extracts. For RUO. Strip well format. Reagents for up to 96 tests. Human plasminogen will bind to the capture antibody coated on the microtiter plate. Plasminogen, plasmin, and plasmin in complex with antiplasmin will react with the antibody on the plate. After appropriate washing steps, polyclonal anti-human plasminogen primary antibody binds to the captured protein. Excess antibody is washed away and bound polyclonal antibody is then reacted with the secondary antibody conjugated to horseradish peroxidase. Following an additional washing step, TMB substrate is used for color development at 450nm. The amount of color development is directly proportional to the concentration of total plasminogen. More Details Detection Target Plasminogen Reactivity Human Range 0.5-500 ng/ml Sensitivity 0.098 ng/ml
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Biolegend Spark Blue™ 574 anti-human CD95 (Fas) [DX2]; Isotype: Mouse IgG1, κ; Reactivity: Human, Cynomolgus, Rhesus; Apps: FC; Size: 100 tests
Spark Blue™ 574 anti-human CD95 (Fas) [DX2]; Isotype: Mouse IgG1, κ; Reactivity: Human, Cynomolgus, Rhesus; Apps: FC; Size: 100 tests