ISE Standards

High quality, uncontaminated standards are critical for proper calibration of Ion-Selective Electrodes. Two standard solutions are included with each ISE, but Vernier sells 500ml bottles of replacement solution.

Ordering Information
	Standard High Ca ISE Solution	CA-HST	$16.00
	Standard Low Ca ISE Solution	CA-LST	$16.00
	Standard High Cl ISE Solution	CL-HST	$16.00
	Standard Low Cl ISE Solution	CL-LST	$16.00
	Standard High NH₄ ISE Solution	NH4-HST	$16.00
	Standard Low NH₄ ISE Solution	NH4-LST	$16.00
	Standard High NO3 ISE Solution	NO3-HST	$16.00
	Standard Low NO3 ISE Solution	NO3-LST	$16.00