Just a couple of drops from any sprinkler system is all that is needed for an instant reading of either glycerine or glycol freeze point or concentration. The Misco Palm Abbe refractometer is the perfect tool for both installers and inspectors and is a must have tool for anyone installing or maintaining fire sprinklers. Instant, accurate readings will help fire professionals make good on-the-spot decisions concerning the amount of propylene glycol or glycerine to add for optimal system performance.
The Palm Abbe Glycerine & Propylene Glycol Refractometer is designed to provide the freezing point and percent concentration of both glycerine and propylene glycol antifreeze solutions. This instrument will test glycerine and propylene glycol percent concentration by volume and freezing point in degrees Fahrenheit. The 5th scale is the refractive index of fire-fighting foam.
Model PA203X-001-006-008-016-018 Fire Refractometer Five Scales
Glycerine % by volume: 0 to 100%
Glycerine Freeze Point: +32 to -46°F
Propylene Glycol % by volume: 0 to 100%
Propylene Glycol Freeze point: +32 to -60°F
Refractive Index Fire Fighting Foam: 1.3330 to 1.5040 nD