These powder buffer solutions provide long shelf life and stability and are ideal for low volume use of the testers. Each pack makes 250ml. of buffer solution. It's lightweight, inexpensive and takes up very little space. These buffers are accurate within ±0.01pH units @ 25°C and remain stable over long periods of time. Features: Simple to use: ust add 250ml. of water per powder packet Powder has an indefinite shelf life. Easy 3-step procedure is written at the back of the packet.

PH 4.01 calibration fluid. 30ml bottle. The shelf life is about 6 months. Please storage in a cool and dry environment.

These powder buffer solutions provide long shelf life and stability and are ideal for low volume use of the testers. Each pack makes 250ml. of buffer solution. It's lightweight, inexpensive and takes up very little space. These buffers are accurate within ±0.01pH units @ 25°C and remain stable over long periods of time. Features: Simple to use: ust add 250ml. of water per powder packet Powder has an indefinite shelf life. Easy 3-step procedure is written at the back of the packet.

These powder buffer solutions provide long shelf life and stability and are ideal for low volume use of the testers. Each pack makes 250ml. of buffer solution. It's lightweight, inexpensive and takes up very little space. These buffers are accurate within ±0.01pH units @ 25°C and remain stable over long periods of time. Features: Simple to use: ust add 250ml. of water per powder packet Powder has an indefinite shelf life. Easy 3-step procedure is written at the back of the packet.

PH 7.00 calibration fluid. 30ml bottle. The shelf life is about 6 months. Please storage in a cool and dry environment.

These powder buffer solutions provide long shelf life and stability and are ideal for low volume use of the testers. Each pack makes 250ml. of buffer solution. It's lightweight, inexpensive and takes up very little space. These buffers are accurate within ±0.01pH units @ 25°C and remain stable over long periods of time. Features: Simple to use: ust add 250ml. of water per powder packet Powder has an indefinite shelf life. Easy 3-step procedure is written at the back of the packet.

PH 9.18 calibration fluid. 30ml bottle. The shelf life is about 6 months. Please storage in a cool and dry environment.

TDS 1382 PPM calibration fluid. 25ml per bottle. The shelf life is about 6 months. Please storage in a cool and dry environment.

This powder solution is studied for the calibration of the ORP tester on a 256mV value. Thanks to this product, recalibrate your tester will be easy and practical. How to use: 1. Add the contect of the sachet into a container with 50ml (1.69oz) of distilled water at the temperature of 25°C (77°F). 2.Mark the container with the ORP level powder used for future reference. Keep it away from children.