pH Buffers & Conductivity Standards
Monitoring both the upstream and downstream processes is essential in biopharmaceutical manufacturing. Puritan Products brand cGMP-manufactured pH buffers and conductivity standards enable reliable and accurate monitoring, prompt process management, and regulatory compliance of your critical biopharmaceutical manufacturing processes.
All products and measurement standards are traceable to the National Institute of Standards and Technology (NIST). We utilize mathematical uncertainty principles and error budgets to provide you with an accurate analytical standard. In fact, to ensure our analysis yields a scientifically defensible value, we researched all possible sources of analytical error with regard to each standard we manufacture. You can be confident that Puritan Products brand pH buffer standards and conductivity standards are accurately measured.* Read our position paper on this topic to learn more.
Product Listing—PharmaPUR® pH Buffer Standards:
| Product | Product Number | Packaging |
|---|---|---|
| pH 0.50 | 9742GMP | 6 x 500 ml |
| pH 1.68 | 9740GMP | 6 x 500 ml |
| pH 3.00 | 9739GMP | 6 x 500 ml |
| pH 4.00 | 9745GMP | 6 x 500 ml |
| pH 6.00 | 9744GMP | 6 x 500 ml |
| pH 6.86 | 9746GMP | 6 x 500 ml |
| pH 7.00 | 9735GMP | 6 x 500 ml |
| pH 8.00 | 9743GMP | 6 x 500 ml |
| pH 10.00 | 9736GMP | 6 x 500 ml |
| pH 12.47 | 9737GMP | 6 x 500 ml |
| pH 13.00 | 9741GMP | 6 x 500 ml |
| pH 4.0—RED | 9749GMP | 6 x 500 ml |
| pH 7.0—YELLOW | 9747GMP | 6 x 500 ml |
| pH 10.0—BLUE | 9748GMP | 6 x 500 ml |
Product Listing—PharmaPUR® Conductivity Standards:
| Conductivity Concentration | Product Number | Conductivity Concentration | Product Number |
|---|---|---|---|
| 10 µS/cm | 900192GMP | 12,856 µS/cm | 901092GMP |
| 20 µS/cm | 900692GMP | 20,000 µS/cm | 901192GMP |
| 75 µS/cm | 900792GMP | 30,000 µS/cm | 901292GMP |
| 100 µS/cm | 900292GMP | 40,000 µS/cm | 901392GMP |
| 200 µS/cm | 902092GMP | 50,000 µS/cm | 901492GMP |
| 250 µS/cm | 900892GMP | 58,650 µS/cm | 901692GMP |
| 500 µS/cm | 902992GMP | 70,000 µS/cm | 901792GMP |
| 1000 µS/cm | 900392GMP | 100,000 µS/cm | 901892GMP |
| 2000 µS/cm | 900992GMP | 175,000 µS/cm | 900592GMP |
| 10,000 µS/cm | 900492GMP | 200,000 µS/cm | 902292GMP |
For more specific information on these products, visit our homepage and click on the pH Buffers or the Conductivity Standards box under the Category section on the right side of the page.
*Results are reported as described in Guide to Expression of Uncertainty in Measurement, ISO, Geneva, 1993.
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