Oakton Buffer Solution, pH 4.01; 500 mL

Representative image only.
Oakton Item # EW-00654-00
Ideal for laboratory and field analysis
  • All Oakton pH buffers are traceable to NIST standard reference materials
  • Buffer solution lets you calibrate pH instruments to ensure accuracy
  • If unopened, shelf life is 2 years
  • NIST/USA buffer value of pH 4.01

PRODUCT OPTIONS

$14.50USD / Each
Choose the buffer value and volume that fits your needs
Oakton® pH Buffer Solutions
$14.50 - $168.00USD / Each

SPECS & DESCRIPTION

Specifications & Description

  • Buffer Value4.01
  • Volume (mL)500
  • ColorRed
  • DescriptionBuffer Solution, pH 4.01; 500 mL

Key Features

  • All Oakton pH buffers are traceable to NIST standard reference materials
  • Buffer solution lets you calibrate pH instruments to ensure accuracy
  • If unopened, shelf life is 2 years
  • NIST/USA buffer value of pH 4.01

More About this Item

• Oakton pH Buffer Solutions have pH/temperature tables printed on the labels for accurate calibrations (not on 60-mL, but included as insert)
• Manufactured under ISO 9000 quality guidelines and traceable to NIST standards
• If unopened, shelf life is 2 years; once opened, use pH 4 and pH 7 within 90 days, pH 10 within 30 days
• Buffer Options:
- pH 1.68 buffer available in clear
- pH 4.01 buffer available in red
- pH 6.86 buffer available in clear
- pH 7.00 buffer available in yellow
- pH 9.18 buffer available in clear
- pH 10.01 buffer available in blue
- pH 12.46 buffer available in clear

Standardized against NIST-traceable pH references for meters with 0.01 resolution. Sold in individual bottles; 500-mL bottles are also available in cases of 12.

Store buffers away from direct sunlight.

Certificate of Analysis

Enter lot number
or click to view a Sample C of A

ACCESSORIES

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REVIEWS

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Oakton pH Calibration Buffer, 4.01, 500 mL
 
4.3

(based on 4 reviews)

100%

of respondents would recommend this to a friend.

Reviewed by 4 customers

Displaying reviews 1-4

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5.0

Calibration on your pocket

By 

from Colombia

About Me Academic/Professional Researcher

Pros

  • Easy To Use

Cons

    Best Uses

    • In The Field
    • In The Lab

    Comments about Oakton pH Calibration Buffer, 4.01, 500 mL:

    N/A

    (0 of 1 customers found this review helpful)

     
    5.0

    Old reliable

    By 

    from Dayville, CT

    Pros

    • Easy To Use
    • Exhibits Correct Properties

    Cons

      Best Uses

      • In The Field
      • In The Lab

      Comments about Oakton pH Calibration Buffer, 4.01, 500 mL:

      We have used this product for years with great results. Will continue to use for years to come.

      (1 of 2 customers found this review helpful)

       
      3.0

      check the bottle before you ship it

      By 

      from Monroe, CT

      Verified Buyer

      Pros

      • Good Value

      Cons

      • Low Quality
      • see below

      Best Uses

      • for my aquarium

      Comments about Oakton pH Calibration Buffer, 4.01, 500 mL:

      Performs as expected, but the bottle I received is a leaker. Fortunately it is in a plastic bag, so the reagent is salvageable.

      (0 of 1 customers found this review helpful)

       
      4.0

      We were very satisfied

      By 

      from Cleveland, OH

      Verified Buyer

      Pros

      • Good Value
      • High Quality
      • Worked well

      Cons

        Best Uses

          Comments about Oakton pH Calibration Buffer, 4.01, 500 mL:

          We were worried that it would not work on our sensitive BTA machine, as we purchased buffers that were specifaclly labeled for BTA use at three times the expense. We gave it a try and everything worked beautifully. We are happy to have a source for buffers that is inexpensive and trustworthy.

          Displaying reviews 1-4

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          Q&A

          Do you have questions about this product?

          Get answers from real customers and in-house experts with AnswerBox.

          5 Questions | 5 Answers
          Displaying questions 1-5
          • Q:

            Is there an open date expiration for this standard or the 7.00 (part#00654-04), 10.01 (part#00654-08)?
            Asked on 12/29/2016 by Mo from Nevada City, California

            1 answer

            • STAFF EXPERT

              A:

              This has a 24 month shelf life from the date of manufacture.

              Answered on 1/6/2017 by Jose from Technical Support
          • Q:

            I NEED THE COA FOR THE FOLLOWING BUFFER LOT NUMBER:TV1,SQ1SU1
            Asked on 10/6/2015 by Norberto from Manati.PR

            1 answer

            • STAFF EXPERT

              A:

              A C of A can be found by typing the lot number into the box above (located under the technical resources section of this page). Please make sure you allow pop up blockers, as this could create an issue.

              Answered on 10/6/2015 by Danielle from Technical Support
          • Q:

            Hi,

            I would like to get the COA of pH 4.01 buffer with lot no. SX1.
            I tried to get it off the web site but would never come up.

            Thanks,
            John
            Asked on 1/16/2015 by Smokey

            1 answer

            • STAFF EXPERT

              A:

              Under technical resources, you will see another search box titled "Certificate of Analysis". Enter the lot number into this search box and click on the arrow. This should bring up the C of A for your lot number. If the certificate does not pop-up initially, you may need to temporarily disable your pop-up blocker. Expect an email from techinfo@coleparmer.com shortly with the certificate as an attachment.

              Answered on 1/16/2015 by Danielle from Technical Support
          • Q:

            Hi,

            I would like to get the COA of pH7 pH4 buffer with lot no. RX2,RX3.
            Asked on 10/21/2013 by borisr from Israel

            1 answer

            • STAFF EXPERT

              A:

              Certificates of Analysis can be accessed directly from the Cole-Parmer website.
              Enter the item number into the search box and click on the red search button. Be sure to include the dash in the item number. This will take you directly to the product page.

              Once on the product page, scroll down until you see "Technical Resources".

              Under technical resources, you will see another search box titled "Certificate of Analysis". Enter the lot number into this search box and click on the arrow. This should bring up the C of A for your lot number. If the certificate does not pop-up initially, you may need to temporarily disable your pop-up blocker.

              Repeat steps 1 - 3 for additional certificates for different item numbers.

              Answered on 10/22/2013 by Polo from Technical Support
          • Q:

            Hi,

            I would like to get the COA of pH4 buffer with lot no. PU2.

            Thanks,
            Evelyn
            Asked on 3/19/2012 by Anonymous

            1 answer

            • STAFF EXPERT

              A:

              These can be generated off the website directly by typing the lot number into the field provided under the Technical Resources heading towards the bottom of the product page. I will email one to you, though. Expect an email from techinfo@coleparmer.com shortly with the certificate as an attachment.

              Answered on 3/19/2012 by Jay from Customer Service
          Displaying questions 1-5

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