For Crude Oil, CDOM, Refined Fuels, Tryptophan and Optical Brighteners only. 

ONLY for use with sensors that have stainless steel or titanium housing. NOT for use with sensors that have plastic housing.

• Can be used in place of a primary liquid standard once a correlation between a primary standard and the solid standard is established.
• Can be used to check fluorometer stability and/or check for loss in sensitivity.
• Provides a broad range of very stable fluorescent responses.
• Has an adjustment screw allowing users to set to a desired signal. 

View Instructions