Concentration Test Kit
TEST KIT / MULTI-POINT MEASUREMENT Concentration Test Kit
The Concentration Test Kit measures the extinguishing-agent concentration produced inside a vehicle after activation of fire suppression or explosion suppression systems. The test procedure is based on the concentration test defined in NATO STANAG 4317 Section 4.4.3, while HFC227ea reference values specified in NFPA 2001 are used for evaluation. Multi-point measurement allows the resulting concentration profile to be documented across occupied or enclosed vehicle compartments.
Multi-point concentration measurement equipment for post-discharge verification in vehicle fire suppression and explosion suppression applications.
Multi-Point Gas Concentration Verification After System Discharge
The Concentration Test Kit is intended for measuring the extinguishing-agent concentration that develops inside a vehicle or enclosed compartment after a suppression-system discharge. The resulting data provides a basis for evaluating the post-discharge environment against the referenced HFC227ea concentration values.
This measurement approach supports acceptance testing, design verification and personnel-exposure assessment for vehicle fire suppression and explosion suppression installations.
Simultaneous Measurement Across Multiple Vehicle Locations
Before cylinder discharge, sensors are positioned at a minimum of three and a maximum of ten locations inside the vehicle. The system is configured to acquire concentration measurements from multiple points at the same time.
After discharge, the sensors collect averaged data over a 30-second sampling period, while the complete measurement sequence continues for 5 minutes.
Method3–10
Points
Light-Intensity-Based Concentration Measurement
The supplied test description specifies a light intensity–based measurement method for determining gas concentration at each sensor location. This allows concentration values to be captured across different positions within the protected compartment after extinguishing-agent release.
The technical data specifies a measurement range of 0%–25% and a sampling rate greater than 100 Hz, identified as the fast-sensor category according to STANAG 4317.
Concentration Test Kit Highlights
Multi-Point Measurement
Supports simultaneous concentration measurement at up to ten locations inside the vehicle or enclosed compartment.
> 100 Hz Sampling Rate
The specified sampling rate exceeds 100 Hz and is identified as the fast-sensor category according to STANAG 4317.
0%–25% Measurement Range
Measures gas concentration across the specified 0% to 25% range during post-discharge verification.
30-Second Averaging Period
Sensor data is averaged over a 30-second sampling period following extinguishing-cylinder discharge.
5-Minute Test Duration
The supplied procedure defines a total concentration measurement duration of five minutes.
HFC227ea Reference Evaluation
Measured concentration data is evaluated using the HFC227ea reference values specified under NFPA 2001.
Sensor Placement, Sampling and Result Evaluation
Sensor Placement
- Minimum
- 3 measurement locations.
- Maximum
- 10 measurement locations.
- Timing
- Sensors are positioned before cylinder discharge.
Post-Discharge Sampling
- Averaging Period
- 30 seconds.
- Total Duration
- 5 minutes.
- Method
- Light-intensity-based gas concentration measurement.
Concentration Assessment
- Procedure
- NATO STANAG 4317 Section 4.4.3.
- Agent Reference
- HFC227ea.
- Evaluation Reference
- NFPA 2001 concentration values.
Application Areas
Concentration Test Standards
The supplied test procedure identifies NATO STANAG 4317 Section 4.4.3 as the basis for the concentration test. For measurement evaluation, the HFC227ea concentration reference values in NFPA 2001 are used. These references define the framework stated for conducting and assessing the supplied concentration test procedure.
Frequently Asked Questions
01How many measurement locations can be monitored during one test?
The described test setup uses sensors at a minimum of three and a maximum of ten locations, with simultaneous multi-point measurement capability.
02What concentration range can the test kit measure?
The supplied technical data specifies a measurement range of 0%–25%.
03What sampling performance is specified for the sensors?
The sampling rate is specified as greater than 100 Hz, described as the fast-sensor category according to STANAG 4317.
04How long does the post-discharge measurement sequence continue?
Sensor data is averaged over a 30-second sampling period, and the stated total measurement duration is 5 minutes.
05What operating temperature range is specified for the kit?
The technical data specifies an operating temperature range of 0°C to 40°C.
Technical Data
Need More Information About the Concentration Test Kit?
Contact our team for multi-point gas concentration measurement, STANAG 4317 test procedures and HFC227ea evaluation requirements.