Inadequate dry chemical agent can be dangerous, whether that be due to unacceptable chemical composition, particle size distribution, or moisture content. Several standards require dry chemical agent be analyzed periodically:
NFPA 10 Portable Fire Extinguishers 2018 Ed. 126.96.36.199.2 requires that dry chemical be thoroughly checked before it can be re-used. This includes checking for proper type and contamination.
NFPA 17 Dry Chemical Extinguishing Systems 2017 Ed. 11.3.1 requires examination of dry chemical at least twice a year and after any system activation for a non-pressurized system. Section 188.8.131.52 requires examination of dry chemical in pressurized systems to be done at least every six years.
IMO 1432 31/5/2012 requires dry chemical agent in fixed dry chemical systems be tested for moisture content every two years.
- OSHA 29 CFR 1910.161(b)(4) requires sampling of the dry chemical agent in all but stored pressure systems at least annually to ensure it is free of moisture.
Why test your dry chemical sample with Dyne Fire Protection Labs?
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NOTE: If you are out of the U.S. and your samples will be traveling through customs, please list all dry chemical samples as fire extinguisher powder on your customs forms.Please provide a SDS for each product whenever possible.
• Moisture Content
- High moisture content can lead to caking of the agent, resulting in inadequate flow of the agent through the equipment, and/or corrosion of the storage vessel, potentially compromising its integrity.
• Chemical Composition
- A chemical composition other than that listed with the equipment and hazard may not work as designed. Mixing of different types of agents can lead to a chemical reaction that produces byproducts of water (increasing agent moisture content) and carbon dioxide (increases vessel pressure to dangerous levels).
• Particle Size Distribution
- Research has shown that a loss of fine particles in the agent, possibly during the transfer of agent, can result in poor extinguishment performance.
Dyne helps you meet various inspection, testing, and maintenance requirements in the following standards:
- NFPA 10 Portable Fire Extinguishers 2018 Ed. 184.108.40.206.2
- NFPA 17 Dry Chemical Extinguishing Systems 2017 Ed. 11.3.1
- IMO 1432 31/5/2012
- ISO 7202 Fire protection – Fire extinguishing media – powder 2018 Ed. Sections 5.4 and 10
- OSHA 29 CFR 1910.161(b)(4)