Buffer Solution pH4.00 (Phthalate), NIST Standard Solution ready to use for pH measurement, Fisher Chemical™

Ready to use for pH measurement.
Each solution is easily identified by its color, saving time and reducing errors.
Our buffer solutions are a high quality and reliable range of products that ensure accurate results for calibration/titration.

• Standard and color-coded buffer solutions
• Manufactured to a tolerance of ±0.02 pH units
• Accurately standardized and labelled with lot-specific pH at 20°C
• All buffers are traceable to NIST and BS 1647 standard
• Packed in HDPE containers to help protect the products integrity an ensure safe handling (refers to 1L, 2.5L, and 5L quantities)
• Standard buffers are available over the range pH2 to pH10
• Color-coded buffer solutions are available over the range pH4, pH7, and pH