R-507
R125/R143aR-507 (R-507A) is an azeotropic HFC blend used in low and medium temperature commercial refrigeration. It is a common replacement for R-502 with no glide.
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Key Information
Essential safety and exposure information for R-507
Health Effects
May cause cardiac sensitization at high concentrations. Can displace oxygen. Decomposition products are toxic when exposed to flames.
Common Sources
- Industrial refrigeration
- supermarkets
- ice machines
- cold storage
Exposure Limits
- WEEL
- 1,000 ppm (8-hr TWA)
- No OSHA/NIOSH limit
- No OSHA/NIOSH limit
- R125/R143a blend
- R125/R143a blend
Regulatory Status
- EPA SNAP
- Acceptable with restrictions
- ASHRAE 34
- A1 Safety Classification
- GWP
- 3985
- ODP
- 0
- DOT
- Class 2.2 Non-flammable, UN3163
- F-Gas Regulation
- High-GWP phase-down
Detection Requirements
- Sensor Technology
- Infrared (NDIR)
- Detection Range
- 0-1,000 ppm (typical)
- Response Time
- <60 seconds (T90)
- Cross-Sensitivity
- Test for blend-specific response
- Calibration
- Annual with target gas recommended
Related Applications
Industries and environments where R-507 detection is critical
Detection Solutions
Sensors and detectors for R-507 monitoring
cGas Detector VRF IR Refrigerant Transmitter
An aesthetic, non-dispersive infrared refrigerant gas detector for acute leak detection in modern energy-efficient buildings utilizing Variable Refrigerant Flow (VRF) HVAC systems.
cGas-SC Self-Contained Controller
A self contained controller with up to 3 gas channels, Plug & Play Smart Sensor Technology and configurable logic control and priority settings. Offers superior user customization and reliable gas detection performance for monitoring many gases.
cGas Detector IR Refrigerant Transmitter
Non-dispersive infrared refrigerant gas detector with accurate, low level leak detection, available with analog output or BACnet® or Modbus® output and Plug & Play Smart Sensor Technology.
FCS Multi Channel System Controllers
High performance controller with logic and priority settings for monitoring toxic, combustible and refrigerant gases with versatile control functionality. Available with Modbus® or BACnet® communication with BAS, supports 4-20 mA and Modbus® driven VFDs.