Hydroponics

Apera Instruments pH & EC Calibration Solution Kit — 8 oz Bottles + CalPod

3.5 8 reviews 1 min read

Apera Instruments pH & EC Calibration Solution Kit — 8 oz Bottles + CalPod

Product description

This kit contains six 8 oz (approx. 236 mL) calibration bottles covering pH 7.00, pH 4.00 and pH 10.01, plus three conductivity standards at 1413 µS, 12.88 mS and 84 µS. Also included is a 4 oz storage solution bottle and a CalPod solution holder to keep all bottles organized during calibration.

All buffer solutions are produced in an ISO 9001:2015 facility with ISO 17025:2017 accreditation. Formulations use high-purity reagents, deionized water and are prepared on certified analytical balances in a temperature-controlled environment. Reported pH values are accurate to ±0.01 pH at 25 °C and the assigned values are traceable to NIST Standard Reference Materials (SRMs).

Bottles are color-coded for fast identification and come double-sealed. Unopened pH buffers carry a two-year expiration from manufacture; conductivity solutions have a one-year unopened shelf life. Material safety data sheets are available for download, and a certificate of analysis can be provided upon request to document lot-specific values.

Pros

  • High accuracy and NIST traceability (±0.01 pH at 25 °C)
  • Includes CalPod holder and separate storage solution
  • Color-coded, double-sealed bottles for easy handling

Cons

  • Conductivity standards have a shorter unopened shelf life
  • Certificates of analysis must be requested separately
  • Occasional orders may arrive missing the CalPod or storage bottle

VerdictA thorough calibration kit that bundles multiple pH and conductivity standards with a storage solution and organizer. Manufactured under accredited processes and NIST-traceable, it’s well suited for routine instrument verification, though conductivity solutions carry a shorter unopened shelf life.

Reviews

  1. Denise Jones 5/5

    Outstanding calibration fluids

    Excellent calibration fluids

  2. SWhitman 1/5

    Some near expiry

    A few bottles were close to their expiry dates.

  3. Clark Williamson 4/5

    Missing storage solution

    Storage solution was missing; hope they resolve it.

  4. DYLAN WHITE 5/5

    Quick delivery

    Arrived early and intact

  5. River Brazill 5/5

    Performs as promised

    Performs as described; easy to use.

  6. Loni 1/5

    CalPod not included this time

    CalPod was not included this time; it’s why I buy this kit.

  7. JLinville 2/5

    Arrived expired

    Item arrived already expired.

  8. Walter De La Rosa 5/5

    Need calibration certificate

    How can I obtain a calibration certificate?

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