pH Buffers & Solutions

pH Buffers and pH Test Solutions are essential tools for accurate and reliable pH measurement in various scientific and industrial applications. These solutions, designed to maintain stability across a range of conditions, ensure precise calibration and testing, which is critical for experiments and processes requiring stringent pH control.

Our selection of pH buffers includes specialized options like the pH 13 buffer, ideal for high-alkalinity environments. These pH standards are formulated to deliver consistent results, making them indispensable for pH calibration standard procedures. They come in a variety of sizes and concentrations, ensuring compatibility with different instruments and applications.

Using our pH buffers and solutions, users can achieve precise pH readings, which are crucial for maintaining the integrity of their work. The availability of various pH calibration standards helps set accurate reference points for measurements, enhancing data reliability.

We offer a broad range of pH and buffers, from general-purpose solutions to precise formulations. Whether you need buffers for routine laboratory calibrations or specialized pH test solutions for unique research needs, our products provide dependable performance.

pH Buffers & Solutions

Products (237)

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  • Traceable® pH Buffer Standards (CRM)

    The most accurate pH Standards available anywhere Certified Reference Material Traceable® Certificate supplied Highest accuracy available Traceable® pH Standards, Certified Reference Materials, are 100% compatible with all instruments and probes. Accuracy for the Traceable® Buffers at...

  • Orion® pH Buffers

    Thermo Scientific Orion

    Orion pH buffers are manufactured under ISO 9000 quality standards. Buffers are color-coded for ease of use, packaged with buffer/temperature tables for accurate calibrations and NIST traceability. All-in-One Buffer kit (1233M21) includes pint bottles of 4 (pink), 7 (yellow) and 10 (blue) buffers,...

  • Color-Coded pH Buffers

    Standardized and certified traceable to NIST Standard Color-coded for quick reference Accuracy ±0.01 pH at 25°C pH temperature chart, lot numbers and expiration dates on each label pH 4.0 buffer is colored red, 7.0 buffer is yellow or green and 10.0 buffer is blue. Thomas numbers 4120R54,...

  • pH Electrode Solutions

    Thermo Scientific Orion

    Electrode Storage Solution 475 mL plastic bottle pH of solution is 6.2 to 7.4 For short term storage of all electrodes for one day to a week. Electrode Filling Solution Internal filling solution for Ross-type electrodes (3M KCl). In packages of five 60 mL bottles.

  • pH Buffer Solutions

    Choose from economical solution bottles or individually sealed pH buffer pouches. NIST traceable materials Labeled with pH vs. temperature tables for accurate calibration All Oakton pH buffer solutions are freshness dated, and standardized against NIST-traceable references to ensure quality....

  • Buffer Standard, pH 4.01

    Meets requirements of both ISO 17025 and ISO 17034 Certified Reference Materials, made under the strictest standards for stability, homogeneity, and accuracy Tested to tolerances of 0.01 pH units Supported by detailed Certificate of Analysis including temperature variation values and stated...

  • Buffer Standard, pH 9.00

    Meets requirements of both ISO 17025 and ISO 17034 Certified Reference Materials, made under the strictest standards for stability, homogeneity, and accuracy Tested to tolerances of 0.01 pH units Supported by detailed Certificate of Analysis including temperature variation values and stated...

  • Buffer Standard, pH 7.00

    Meets requirements of both ISO 17025 and ISO 17034 Certified Reference Materials, made under the strictest standards for stability, homogeneity, and accuracy Tested to tolerances of 0.01 pH units Supported by detailed Certificate of Analysis including temperature variation values and stated...

  • Buffer Standard, pH 5.00

    Meets requirements of both ISO 17025 and ISO 17034 Certified Reference Materials, made under the strictest standards for stability, homogeneity, and accuracy Tested to tolerances of 0.01 pH units Supported by detailed Certificate of Analysis including temperature variation values and stated...

  • Buffer Standard, pH 10.00

    Meets requirements of both ISO 17025 and ISO 17034 Certified Reference Materials, made under the strictest standards for stability, homogeneity, and accuracy Tested to tolerances of 0.01 pH units Supported by detailed Certificate of Analysis including temperature variation values and stated...

  • Buffer Standard, pH 2.00

    Meets requirements of both ISO 17025 and ISO 17034 Certified Reference Materials, made under the strictest standards for stability, homogeneity, and accuracy Tested to tolerances of 0.01 pH units Supported by detailed Certificate of Analysis including temperature variation values and stated...

  • Buffer Calibration Solutions

    Any pH measurement is only as accurate as the buffer solution used for calibration. These buffer solutions are traceable to primary standards set by NIST. Buffers 5001A40 through 5001A45 come with a quality assurance certificate per DKD and are particularly useful in quality assurance systems....

  • Buffer Standard, pH 8.00

    Meets requirements of both ISO 17025 and ISO 17034 Certified Reference Materials, made under the strictest standards for stability, homogeneity, and accuracy Tested to tolerances of 0.01 pH units Supported by detailed Certificate of Analysis including temperature variation values and stated...

  • Buffer Standard, pH 12.00

    Meets requirements of both ISO 17025 and ISO 17034 Certified Reference Materials, made under the strictest standards for stability, homogeneity, and accuracy Tested to tolerances of 0.01 pH units Supported by detailed Certificate of Analysis including temperature variation values and stated...

  • Buffer solution (boric acid/potassium chloride/sodium hydroxide solution)

    BUFFER SOLUTION , TRACEABLE TO SRM FROM NIST AND PTB PH 9.00 (25 GRAD C) CERTIPUR

  • NIST/DIN pH Buffer Solutions

    Single use calibration standards - use one sachet per calibration. Mettler products are intended for sale/shipment within the US only. International customers should contact their local Mettler distributor to place orders for Mettler products.

  • Optimum Results Filling Solutions

    Thermo Scientific Orion

    For use with ionplus® Sure-Flow® ISE electrodes Little or none of the ion of interest present helps prevent sample contamination Application-specific solution formulation improves response time Small temperature coefficients reduce electrode potential shifts from changing sample...

  • Buffer, Reference Standard, pH 3.00 ± 0.01 at 25°C

    pH made Easy. Everything you need and want in a pH Buffer. NIST Traceability. Consistent, reliable performance. The tightest specification (+/- 0.01 pH unit) on all buffers. Long Expiration dates. Temperature conversion charts for all Buffers up to pH 11. Multiple sizes to fit your usage and budget...

  • Color-Coded pH Buffer Solutions

    chemForce® (powered by Thomas Scientific)

    Harmonized #: 3822.00.0002|5090 Shelf Life (months): 24 Specific Gravity: 1.00 DOT: Not regulated Physical State: Liquid Flash Point: Not applicable Solubility: Miscible Storage Temperature: Ambient Storage Code: General Traceable to NIST standards

  • Traceable® ph Buffer Standards (CRM), Color Coded

    labForce® (powered by Thomas Scientific)

    The MOST accurate pH Standards available anywhere now color-coded for convenience Traceable® pH Standards, Certified Reference Materials, are 100% compatible with all instruments and probes. Accuracy for the Traceable® Buffer at 25°C is ±0.010 pH—the most precise available....

  • Clear pH Buffer Solutions

    chemForce® (powered by Thomas Scientific)

    Harmonized #: 2806.10.0000|0000 Shelf Life (months): 24 Specific Gravity: 1.00 DOT: Not regulated Appearance: Colorless Physical State: Liquid Flash Point: Not applicable Solubility: Miscible Storage Temperature: Ambient Storage Code: General

  • Color-Coded pH Buffer Solution Set

    chemForce® (powered by Thomas Scientific)

    Size: 3 x 500 mL Harmonized #: 3822.00.0002|5090 Shelf Life (months): 24 Specific Gravity: 1.00 DOT: Not regulated Appearance: Color coded Physical State: Liquid pH: 4, 7, 10 Flash Point: Not applicable Solubility: Miscible Storage Temperature: Ambient Storage Code: General

  • Traceable® ColorCode pH One-Shot™ Assorted

    labForce® (powered by Thomas Scientific)

    The MOST accurate pH Standards available anywhere now color-coded for convenience Traceable® pH Standards, Certified Reference Materials, are 100% compatible with all instruments and probes. Accuracy for the Traceable® Buffer at 25°C is ±0.010 pH—the most precise available....

  • High-Accuracy pH Buffer Solutions

    pH Calibration buffers for tight tolerances For meters with 0.001 resolution Buffers are color-coded for easy visual identification.

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