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Biopharm

pH Buffer Calibration Kit 2-Pack — 250 mL (8.4 fl oz) Bottle of Each: pH 4.00 and pH 7.00 | Color Coded

  • Based on 96 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Biopharm Inc
Arrives Monday, Jul 6
Order within 21 hours and 7 minutes
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Features

  • Convenient Waterproof Labels
  • Suitable for ALL pH Meters
  • FREE 'How to Use" sheet included
  • Ideal for Hydroponics, Aquariums, Aquaponics and Pools
  • Individually Bagged 250 ml (8 oz) Poly Bottles

Description

Want that feeling of confidence from doing things right? Get our accurate, unbiased, independent and scientifically documented calibration standards and be sure your meter is working correctly. These buffer calibration solutions are suitable for the calibration of all pH meters. Each production lot is manufactured in our laboratory following carefully controlled written procedures and standardized against NIST standard reference materials (SRM) for high accuracy. The finished product is assigned a unique Lot number and expiration date. These products will have greater than one year shelf life when received.

Brand: Biopharm


Item Weight: 0.64 Kilograms


Item Volume: 250 Milliliters


Package Information: Bottle


Item Form: Liquid


Container Type: Bottle


Item Form: Liquid


Item Weight: 0.64 Kilograms


Volume: 250 Milliliters


Brand Name: Biopharm


Manufacturer: Biopharm Inc


Part Number: BB8902X


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Jul 6

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

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Similar Products

Top Amazon Reviews

    • 4.0 calibration
I was able to quickly calibrate my test equipment and store it properly.
Reviewed in the United States on September 28, 2024 by gabriel murphy
    • Works well
Quick shipping, well packaged, no complaints
Reviewed in the United States on October 12, 2024 by not you
    • Quality
Good
Reviewed in the United States on July 31, 2025 by The Rick
    • Works as advertised
This stuff works well and helps me calibrate my ph meters.
Reviewed in the United States on June 16, 2022 by j.
    • Great ph calibration fluid Great ph calibration fluid
Review Image by Heather Wright
Great PH calibration fluid. Works well with my blue lab PH tester pen!
Reviewed in the United States on March 7, 2021 Reviewed in the United States on March 7, 2021 by Heather Wright
    • Significantly less than competing calibration buffers
A calibration solution has a very simple task, remain stable at a specific target pH. The Biopharm buffers do this at half the price of the Hanna buffers they replaced.
Reviewed in the United States on December 27, 2018 by Steven W. Graff
    • I might not understand
I bought this to calibrate my handheld pH meter. These 2 are accurate but from what I can tell most meters need 3 different pH samples (basic, neutral abd acidic) to properly calibrate them. Maybe there are some devices that only use 2 but every one I've owned requires 3.
Reviewed in the United States on August 12, 2022 by Andrew

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