Product Description: The pH electrode must be calibrated regularly. Normally, calibration is recommended after cleaning the electrode, after maintenance, after playback, replacement, or after long-term storage. It is an essential step to maintain the pH measuring system in good condition. APERA / pH Standard Liquid Features: ● The color matches the pH identification chart and differentiates the liquid from the source so you dont have to worry about mistaking the standard solution. Compared to a calibration agent, there is no need to worry about the accuracy of the calibration fluid due to the infusion of carbon dioxide in the solution. Uses anti-corrosion technology and can be stored in an unopened state for 2 years. The container is sealed with a leak-proof double wallet. Comes with two options of 8.5 fl oz (250 ml) and 16.9 fl oz (500 ml). Please refer to the following guidelines to keep your standard liquid as best as possible after opening. When not in use, always close the plug. When using, please transfer the necessary amount to a different clean container before using. Do not return standard liquids to the original container. Please record the first usage date (open date) in a standard liquid container. Do not store containers or standard liquids in a place exposed to direct sunlight. If the standard liquid expires date, please replace it with a new one. Please note (disclaimer) > Please be sure to read. Please note that actual capacity may vary slightly from the listed capacity. Keep out of reach of children.
Please note that actual capacity may vary slightly from the listed capacity.
Keep out of reach of children.