Thermostatic test chamber LFZ-UV-B

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UV TESTING CHAMBER USAGE
LFZ-UV-B is designed for accelerated light and water exposure aging tests to evaluate the relative durability of non-metallic materials such as paints, coatings and plastics. It reproduces UV exposure, temperature and spray cycles for comparative laboratory testing.

APPLICATION — FOOD / PHARMACEUTICAL
Meets ICH Q1B light stability testing requirements for drug substances and finished products. The near‑UV fluorescent lamps cover 320–400 nm with peak emission at 350–370 nm. Typical test exposure: cold white light ≥ 1.2 × 10^6 Lux·hr and near‑UV energy ≥ 200 W·hr for direct comparison of stability.

APPLICATION — COSMETICS
Suitable for UV isolation validation and accelerated anti‑aging screening of cosmetic formulations. The chamber enables fast comparative evaluation to support formulation development and quality control. Simple operation and maintenance reduce laboratory workload.

UV TESTING CHAMBER FEATURES

• Inner liner in SUS304 stainless steel; outer casing in cold‑rolled steel with sprayed finish
• 4.3‑inch touchscreen controller with menu‑based interface for intuitive operation
• Set and display irradiance, temperature, humidity and spray/rain cycles
• Uses multiple 20W fluorescent UVA lamps; stable spectral distribution with lamp life up to 5000 hours
• 3‑hole sample spray device for uniform sample wetting
• Manual adjustment of irradiance via external UV radiometer option
• Automatic control of blackboard temperature according to test setpoints to reproduce light/spray/temperature cycles
• Equipped with standard 70×150 mm sample holders to permit multi‑directional testing of shaped samples
• Results provide comparative accelerated data and do not replace natural exposure tests for actual field endurance
• Widely used worldwide for UV aging due to fast, convenient and economical operation
• Cost‑effective benchtop model suitable for laboratories with limited budget

SPECIFICATIONS

• Model: LFZ-UV-B (Benchtop)
• Inner liner material: SUS304 stainless steel
• Outer casing: cold‑rolled plate with sprayed finish
• Controller: 4.3‑inch touchscreen, menu interface
• Controlled parameters: irradiance, temperature, humidity, spray/rain cycle
• Light source type: UVA (fluorescent UV lamps)
• Lamp count & power: 3 lamps, 20W each (total 60W)
• Wavelength / irradiance reference: UVA 0.7 W/m² @340 nm; UVB 0.4 W/m² @313 nm
• Lamp life: up to 5000 hours
• Spray device: 3‑hole sample spraying device
• Sample holders: up to 18 standard 70×150 mm holders (configurations may include 4 holders for specific setups)
• Sample‑to‑lamp center distance: 50 mm ± 3 mm
• Chamber dimensions (W×D×H): 770 × 560 × 610 mm
• Temperature ranges: light cycle 45°C–80°C; condensation cycle 40°C–60°C
• Cyclic modes: dark, light, spray — multi‑stage manual control
• Power supply: 220V 50Hz
• Power consumption: 2 kW
• Standards/applications: meets ICH‑Q1B for light stability; suitable for cosmetics validation and accelerated material aging tests

OPTIONAL ACCESSORIES

• Irradiance meter RM10 (domestic)
• Laboratory pure water system
• RS485/232 interface and communication software
• Flash disk data storage
• Printer

NOTES
Optional data storage and communication devices (RS485/232, flash disk, printer) are selectable; consult supplier for configuration and compatibility.