Individual Test Kits:

Silica (Individual Test Kits)
Silica: The heteropoly blue method tests for “molybdate-reactive” silica.
Order Code/Model	Test System	Range/Sensitivity	# of Tests (# Reagents)	Shipping Code (Weight/lbs)
4463 PS	Octet Comparator	0.5, 1.0, 2.0, 3.0, 4.0, 6.0, 8.0, 10.0 ppm or 5, 10, 20, 30, 40, 60, 80, 100 ppm SiO2	50 (4)	N (1)
3321 SL-PSI	Octa-Slide	0.5, 1,0, 2.0, 3.0, 4.0, 6.0, 8.0, 10.0 ppm SiO2	50 (4)	NH (1)

Shipping Codes:

• NH - Non Hazardous Material-No Fees
• N - Small Qty. Hazardous Material-No Fees
• HA - Hazardous Material-Air Fees Only
• B - Hazardous Material-Air & Ground Fees

*(NPDWR) EPA Accepted
?(NPDES) EPA Accepted

Direct Reading Titrators have a specific range, but may be refilled to test higher concentrations.