ASTM G155 Test Chamber Features and Benefits
Full-spectrum simulation:
Employs 1600 hrs long-life water-cooledxenon arc lamps, combined with a multi-layered filtering system (Daylight/Window Glass), accurately reproducing the full ultraviolet and visible spectrum from 300nm to 800nm.
Closed-loop irradiation control:
Equipped with a high-sensitivity sensor, supporting automatic irradiation intensity compensation control at 340nm or 420nm, ensuring absolute stability during testing.
Precision temperature control system:
Supports independent monitoring and adjustment of black plate temperature (BPT) and black mark temperature (BST), realistically simulating the actual temperature rise of materials under sunlight irradiation.
ASTM G155 Test Chamber Specifications
Model | XL-S-750 | XL-S-500 |
Internal Dimension (mm) | 950*950*850 mm | 500*600*700 mm |
Overall Dimension (mm) | 1400*1400*1950 mm | 1000*1140*1920 mm |
Specimen Holder Size(mm) | 95*200 | / |
Specimen Capacity | 42pcs | / |
Chamber Type | Rotating Holder | Flat shelf |
Irradiation Source | 1 piece of 4500W water-cooled xenon arc lamp |
Irradiance Range | 35~150 W/㎡ |
Bandwidth Measurement | 300nm~400nm (340nm or 420nm) |
Chamber Temperature Range | Ambient ~ 100 ℃ ±2℃ |
Black Panel Temperature | BPT 35 ~ 85 ℃ ±2℃ |
Humidity Range | 50% ~ 98% RH |
Water Spray Cycle | 1~9999H59M (Adjustable), Automatic water supply, Water purification system |
Radiometer | UV Radiometer, Tolerance: ±5% |
Cooling System | Mechanical compression refrigeration system |
Rotary drum is the industry mainstream ASTM G155 configuration
Flat shelf is a flexible customized engineering solution
Configuration of ASTM G155 Test Chamber

Xenon Lamp & Filter SystemEquipped with premium water-cooled xenon arc lamps that precisely replicate the full sunlight spectrum (300nm–800nm). Combined with interchangeable Daylight and Window Glass filters, it ensures your testing strictly adheres to ASTM G155 spectral power distribution (SPD) requirements. | 
Irradiance & BPT MonitoringFeaturing high-sensitivity 340nm/420nm sensors and a Black Panel Thermometer (BPT/BST). The advanced closed-loop control system automatically compensates for lamp aging by adjusting power output in real-time. |

Advanced Spray & Humidity ControlNozzles simulates thermal shock and mechanical erosion caused by rain and dew. The internal chamber is constructed from SUS304 high-grade stainless steel to prevent corrosion and water contamination. | 
SmartTouch™ Control InterfaceAn intuitive 7-inch color touchscreen controller pre-programmed with ASTM G155, ISO 4892, and SAE J2527 standard protocols. It supports real-time data logging, multi-language switching, and graphical curve analysis. |
FAQ – ASTM G155 Xenon Test Chamber
Q1: Does ASTM G155 require a rotary drum sample holder?
No. ASTM G155 defines exposure conditions, not sample holder structure. Both rotary drum and flat shelf systems are acceptable depending on application needs.
Q2: Which configuration is better for certification testing?
The rotary drum system (XL-S-750) is preferred for standard compliance and laboratory certification due to its higher exposure uniformity.
Q4: What is the difference between ASTM G155 and UV aging tests?
ASTM G155 uses xenon arc lamps to simulate full-spectrum sunlight, while UV tests (like ASTM G154) use fluorescent UV lamps focusing mainly on ultraviolet radiation.
Q5: Can the system simulate rain?
Yes, the ASTM G155 chamber includes a programmable spray system to simulate rain, dew, and thermal shock conditions.
Q6: What after-sales service do you provide?
We provide:
3-year warranty on key components
Lifetime technical support
Fast response service within 12 hours
Our engineering team provides remote assistance, operation guidance, and spare parts support to ensure stable long-term operation of the equipment.