Certified pH Buffer Solution, pH 4 at 20 °C

Paragon Scientific have manufactured an introductory range of certified pH Buffer solutions, specifically used for verification and calibration checks of pH meter instruments. Routine maintenance and verification checks help ensure accurate readings of pH measurement instruments. Our certified pH buffer range include solutions for pH 4.00, 7.00 and 10.00 certified at either 20 °C or 25 °C, and are accurate within ± 0.01 at 20 °C and within ± 0.01 at 25 °C.

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    Applied Scientific Instruments Co., Ltd.
    1526, 1526/3 Sukhumvit 48/3, Sukhumvit Rd., Prakanong, Klong Toey, Bangkok 10260 Thailand

    บริษัท แอพพลายด์ ไซแอนทิฟิค อินสตรูเม้นท์ส จำกัด
    1526, 1526/3 ซอย สุขุมวิท 48/3 ถนน สุขุมวิท แขวงพระโขนง เขตคลองเตย กรุงเทพ ฯ 10260

    Tel: +66 2 332 8179, 742 7035-6
    Fax: +66 2 332 8180
    Email: sales@asithailand.com

    SKU: PH4-20CF Categories: , , , , , , , , , ,


    Paragon Scientific’s buffer solutions provide traceability of measurement to recognised national standards, and to units of measurement realised at the National Physical Laboratory (NPL) or other recognised national standards laboratories. pH values are traceable to National Institute Standards and Technology (NIST).

    Each solution is supplied with a unique batch number, expiry date, and a temperature / pH table that provides nominal correlation data between pH values and temperature scale. The shelf life of each solution is 12 months. Full traceability and uncertainties are stated on the certificate with each solution.

    Paragon Scientific’s Certified pH Buffer Solutions are colour-coded to allow for easy identification of the pH required, and include anti-fungal preservatives / mould inhibitors.

    These solutions are sold in 500 mL volume tamper evident, HDPE containers. For other volume sizes, please contact the sales team to discuss further.

    • Certified solutions for either 20 °C or 25 °C and are accurate within ± 0.01
    • Certified pH buffer solutions are fully traceable to NIST and international protocols
    • Sold as colour-coded solutions for easy-identification purposes
    • Sold with anti-fungal preservatives / mould inhibitors
    • Supplied with certificate, Safety Data Sheet (SDS) and correlation table between pH and temperature
    • Supplied in 500 mL, tamper-evident containers. For other volumes, please contact us direct.
    • 12 month shelf life per solution


    More Information
    Tarriff Code 38220000
    Shelf Life 12 Months
    Lead Time In Stock


    Certified pH Buffer Solutions Overview