Individual Test Kits:

Caustic (Individual Test Kits)
Caustic: A sample is reacted with barium to precipitate any carbonates, then is titrated with a standard acid to the phenolphthalein endpoint.
Order Code/Model	Test System	Range/Sensitivity	# of Tests (# Reagents)	Shipping Code (Weight/lbs)
7516-DR DCA-DR	Direct Reading Titrator	0–10%/0.2% NaOH	50 at 10% (4)	HA (1)
7181	Dropper Bottle	1 drop = 0.1 or 1% NaOH	50 at 10% (3)	N (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.