The Hanna HI70024p Solution packets are perfect for portable, single-use use, ensuring precise calibration of your salinity meters. With 35 ppt of salinity, these sachets are ready to use right out of the box. Each pack contains 25 sachets, so no need to worry about running out in the middle of a test. Portable and convenient, these sachets are perfect for marine, coastal, or estuarine environments. They meet ISO 11588:2016 requirements, so you can trust in their quality and reliability. Get your Hanna HI70024p Solution packets today and start calibrating with confidence.