*Buffer Solution, pH 4.01, Red, 4 L

pH 4.01 buffer solution. Color-coded red. Standardized in an ISO 17034 and ISO 17025 accredited laboratory. Traceable to NIST.

Volume options range from 500 mL to 20 L:

• 500 mL (CP4400090822)
• 1 L (CP44000908221L)
• 4 L (CP44000908224L)  
• 10 L (CP440009082210L)
• 20 L (CP440009082220L)

Specs

• pH: 4.01
• Tolerance: pH ± 0.022 @ 25°C
• Color: Red / Pink
• Shelf Life: 18 months