pH Meter Buffer Solution Powder for Precise pH Calibration of Your pH Tester by Standard Packets of 15

Key features

• Easy to use: Open the packet mix the power with 250ML distilled water to star your Lab.
• Compatibility: Ideal for Calibrating most of pH meter on market, also for other purpose.
• Long Time Storage: Sealed by durable moisture-proof individual packets, 2 years shelf life.
• Accuracy: Produced with premium quality material under strict conditions, pre-measured.
• Pack of 15: 4*3 model 4.01, 6.86, 9.18 combing are cost-effective and flexible for using.