HI-4016-03 1000 ppm Sodium ISE Standard Solution
HI-4016-03 1000 ppm Sodium ISE Standard Solution

HI-7111/P LiCl Calibration Salt for Relative Humidity, 6 x 15g bottles
HI-7858/5 5m extension cable with female BNC connectors
HI-8086L 23g/L Sodium (Na+) ISE Standard Solution, 500ml FDA bottle
ISEs require calibration for accurate readings. Calibration of up to two points is recommended for enhanced accuracy. ISE calibration standards and sample solutions should always have the same ionic strength; the exact volume of ionic strength adjuster (ISA) must be added to all standards and samples prior to measurement.