Limit your liability and be sure that your antifreeze solution systems will not freeze by sending them to an independent laboratory for complete testing including a freeze point verification test!

• NFPA 25, Standard for the Inspection, Testing, and Maintenance of Water-Based Fire Protection Systems, 2011 Edition, Section 5.3.4 “The freezing point of solutions shall be tested annually”

Recently, antifreeze in sprinkler systems has become a hot-button issue within the sprinkler industry. In the last year two incidents have occurred which raised questions regarding the effectiveness and safety of antifreeze solutions in fire sprinklers, particularly residential systems. On March 1, 2011, the NFPA committee Standard for the Inspection, Testing, and Maintenance of Water-Based Fire Protection Systems, 2011 Edition issued a Tentative Interim Amendment (TIA) both clarifying and changing recommendations regarding antifreeze solutions. This TIA recommends the following regarding the testing of antifreeze solutions:

• The system shall be tested annually
• If the type of antifreeze cannot be reliably determined, then the system shall be completely drained and replaced with an acceptable solution
• The level of antifreeze in solution shall be limited as follows:

Dyne offers:

• Reliable determination of the type of antifreeze, concentration and freeze point.
• Free Antifreeze Sampling Kit - contains sample jars, paperwork and a pre-paid shipping box to make it easy for you to take antifreeze solution samples and send them to our laboratory.
• Antifreeze Sampling Form
• Comprehensive reports, system tags and permanent database archived test results
• Actual freeze point measurement
• Guaranteed one-week turn-around (24-hour turn-around available upon request)

Dyne reports the following information on antifreeze solution samples:

• Appearance
• Refractive Index
• Density (g/cm3)
• pH
• Maximum Freeze Point (ºF/ºC)
• Estimated concentration of glycerin, propylene or ethylene glycol in water by volume
  and by weight (%)
• Estimated Freeze Point (ºF/ºC)
• Overall Pass/Fail Result