• Cole Parmer India Private Limited

pH Buffers, Nist-Traceable

Cole-Parmer has expanded its product range for pH Buffers with the introduction of new NIST-Traceable pH buffers. Higher quality standard pH buffers are used in applications that demand higher precision and reliability. Each bottle includes a NIST-traceable calibration report from an ISO Guide 34 and ISO 17025 accredited laboratory. The series includes colourless buffers for pH 4, pH 7, and pH 10 available in 500-mL, 1-L, or 4-L packaging sizes. All pH buffers to be stored at room temperature. For best accuracy, perform standardizations with fresh buffer solutions. Never pour used buffer back into the bottle. Tips for pH buffer use: these solutions of known pH value allow the user to adjust the system to read accurate measurements.
For best accuracy:

• Standardisation should be performed with fresh buffer solutions
• Buffers used should frame the range of ph for the samples being tested
• Buffer values are dependent upon temperature
• Buffers should be at the same temperature as the samples. (For example; if all samples are at 50°C, warm the buffers to 50°C using a beaker in a water bath).