Name: UV Weathering Test Chamber for ASTM G154 & ISO 4892-3 | DERUI
Brand: Derui
Author: 先生 刘

Fluorescent UV Weathering

ASTM G154 UV Weathering Test Chamber

Evaluate comparative changes in plastics, coatings, sealants, adhesives and other nonmetallic materials under controlled fluorescent UV, heat and moisture exposure.

Primary methodASTM G154 operating practice

Moisture exposureCondensation; spray if specified and configured

What the chamber is designed to evaluate

A UV weathering chamber repeatedly exposes specimens to fluorescent ultraviolet radiation and moisture under controlled conditions. The resulting data can compare formulations, suppliers, coatings or production batches for changes such as color shift, gloss loss, chalking, cracking, embrittlement and strength retention.

ASTM G154 is an apparatus operating practice—not a universal product qualification cycle. The lamp type, irradiance, black-panel temperature, wet phase, duration, specimen evaluation method and acceptance criteria must come from the applicable material specification or customer test plan.

No universal time conversion: laboratory exposure hours cannot be converted reliably into a fixed number of outdoor months or years. Geography, orientation, material chemistry and the selected failure mode all affect correlation. Use controls, replicates and field exposure data when service-life prediction matters.

Select the light source by end-use exposure

UVA-340Closely reproduces the critical short-wave portion of direct outdoor sunlight from approximately 295 to 365 nm. Common for comparative outdoor-weathering studies.

cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https://developers.cloudflare.com/workers/wrangler/configuration/#limitsRepresents the UV portion of sunlight filtered through window glass. Appropriate only when the application and referenced method call for indoor, behind-glass exposure.

cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https://developers.cloudflare.com/workers/wrangler/configuration/#limitsProduces short wavelengths below the terrestrial solar cut-off, which can accelerate degradation but may cause unrealistic failure modes. Use for screening only when the method permits it.

Configuration note: confirm the lamp family, spectral specification, control wavelength and irradiance setpoint before ordering. Different lamps are not interchangeable within one test.

Fluorescent UV or xenon arc?

Decision factor	Fluorescent UV chamber	Xenon arc chamber
cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https://developers.cloudflare.com/workers/wrangler/configuration/#limits	Concentrates on the UV region that drives many polymer and coating failures	Reproduces a broader UV, visible and infrared solar spectrum through a lamp/filter system
Moisture	Condensation and, on equipped systems, water spray	cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https://developers.cloudflare.com/workers/wrangler/configuration/#limits
cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https://developers.cloudflare.com/workers/wrangler/configuration/#limits	cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https://developers.cloudflare.com/workers/wrangler/configuration/#limits	cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https://developers.cloudflare.com/workers/wrangler/configuration/#limits
cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https://developers.cloudflare.com/workers/wrangler/configuration/#limits	cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https://developers.cloudflare.com/workers/wrangler/configuration/#limits	cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https://developers.cloudflare.com/workers/wrangler/configuration/#limits

cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https://developers.cloudflare.com/workers/wrangler/configuration/#limits Xenon ark test odası. cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https://developers.cloudflare.com/workers/wrangler/configuration/#limits.

cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https://developers.cloudflare.com/workers/wrangler/configuration/#limits

cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https://developers.cloudflare.com/workers/wrangler/configuration/#limits.

cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https://developers.cloudflare.com/workers/wrangler/configuration/#limits.
cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https://developers.cloudflare.com/workers/wrangler/configuration/#limits.
cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https://developers.cloudflare.com/workers/wrangler/configuration/#limits.
cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https://developers.cloudflare.com/workers/wrangler/configuration/#limits.

cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https://developers.cloudflare.com/workers/wrangler/configuration/#limits

Reference	Kullan	cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https://developers.cloudflare.com/workers/wrangler/configuration/#limits
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cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https://developers.cloudflare.com/workers/wrangler/configuration/#limits	cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https://developers.cloudflare.com/workers/wrangler/configuration/#limits	cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https://developers.cloudflare.com/workers/wrangler/configuration/#limits
cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https://developers.cloudflare.com/workers/wrangler/configuration/#limits	cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https://developers.cloudflare.com/workers/wrangler/configuration/#limits	cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https://developers.cloudflare.com/workers/wrangler/configuration/#limits
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Ürün	cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https://developers.cloudflare.com/workers/wrangler/configuration/#limits
Test yöntemi	cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https://developers.cloudflare.com/workers/wrangler/configuration/#limits
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Işınım gücü	cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https://developers.cloudflare.com/workers/wrangler/configuration/#limits
Sıcaklık	cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https://developers.cloudflare.com/workers/wrangler/configuration/#limits
Moisture	cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https://developers.cloudflare.com/workers/wrangler/configuration/#limits
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cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https://developers.cloudflare.com/workers/wrangler/configuration/#limits	cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https://developers.cloudflare.com/workers/wrangler/configuration/#limits
Kullanılanlar	cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https://developers.cloudflare.com/workers/wrangler/configuration/#limits

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2. Establish a baselineCondition specimens and record initial color, gloss, appearance or mechanical properties using the referenced methods.

3. Load consistentlyUse repeatable orientation and holders; include known-performance controls and replicates where the method recommends them.

4. Run and documentRecord lamp, irradiance, temperature, moisture cycle, interruptions, maintenance and calibration status.

5. Evaluate intervalsUse preplanned inspection intervals that do not introduce uncontrolled conditioning or handling differences.

6. Report completelyReport all exposure conditions with results; do not state only “tested to ASTM G154.”

Frequently asked questions

What does ASTM G154 test?

ASTM G154 describes how to operate fluorescent UV lamp and water apparatus to expose materials to UV, heat and moisture. A material or product method must define the cycle and evaluation criteria.

Does an ASTM G154 chamber simulate years of outdoor exposure?

It accelerates selected degradation mechanisms for comparative testing, but there is no universal hours-to-years conversion. Correlation requires material-specific field data and controls.

Which lamp should I choose: UVA-340, UVA-351 or UVB-313?

Use the lamp classification required by the applicable method. UVA-340 represents short-wave outdoor sunlight, UVA-351 represents behind-glass UV, and UVB-313 is a more severe screening source that may cause unrealistic degradation.

Can this equipment control relative humidity?

A typical fluorescent UV weathering chamber creates condensation rather than controlling a normal RH setpoint. If an RH-controlled stage is required, confirm whether separate climatic equipment is needed.

Are ASTM G154 and ISO 4892-3 identical?

No. They address closely related fluorescent UV exposure, but their detailed requirements and application scopes differ. Use the exact referenced document and edition.

Can I test bare metal corrosion in this chamber?

ASTM G154 states that it is not intended for corrosion testing of bare metals. Select a salt-spray or cyclic-corrosion method when corrosion is the primary mechanism.

What information is required for chamber selection?

Provide the standard and cycle, material, specimen dimensions and quantity, lamp classification, irradiance setpoint, moisture phase, evaluation plan, utilities and required records.

How should results be reported?

Report the apparatus, lamps, exposure cycle, irradiance, temperatures, moisture conditions, duration, interruptions, specimen mounting, controls and the property-measurement methods used.

Confirm the chamber configuration before ordering

Send DERUI your standard, exposure cycle, specimen dimensions and capacity. We will match the lamp, irradiance control, moisture system and fixture configuration to the test method.

Request a Technical Review

No.	Parametre Adı	Özellik
1	Sıcaklık Aralığı	RT+10℃ ~ 70℃
2	Nem Aralığı	≥90% RH
3	Sıcaklık Birliği	±1℃
4	Sıcaklık Dalgalanması	±0.5℃
5	Lambalar Arası Mesafe	70mm (merkezden merkeze)
6	Numune ile Lamba Arası Mesafe	50±3mm
7	Işınım Gücü	1.0 W/m²’ye kadar ayarlanabilir
8	Test Döngüsü Ayarı	Işık/Kondensasyon/Sprey döngüleri ayarlanabilir
9	Lamba Özellikleri	8 x 40W (L=1200mm), UVA/UVB ≥1600 saat ömür
10	Kontrol Paneli	Renkli Dokunmatik Ekran
11	Sıcaklık Kontrolü	PID Otomatik Ayar Çalışması SSR Kontrolü
12	Standart Numune Boyutu	75×290mm
13	Su Tankı Derinliği	25mm (otomatik kontrol)
14	Etkili Işınlama Alanı	900×210mm
15	UV Dalga Boyu	UVA: 315-400nm; UVB: 280-315nm
16	Test Süresi	0~999 saat (ayarlanabilir)
17	Siyah Panel Sıcaklığı	50℃ ~ 70℃

1. Ultraviyole hava koşulları test odasının ana fonksiyonları nelerdir?
Ana fonksiyonu, malzemelerin ultraviyole radyasyon altında dayanıklılığını ve stabilitesini test etmektir.

2, Ultraviyole hava koşullandırma test odası nasıl çalıştırılır?
Test parametrelerini dokunmatik ekran üzerinden ayarlayın ve kullanım talimatlarına uyun.

3, Ultraviyole hava koşullandırma test odalarına uygun malzemeler nelerdir?
Plastikler, kaplamalar ve otomotiv parçaları gibi çeşitli malzemelere uygundur.

4、Test sonuçları nasıl analiz edilir?
Yerleşik yazılım, malzeme performansındaki değişiklikleri anlamanıza yardımcı olacak detaylı veri analizi ve raporlar sağlayabilir.

5, Ultraviyole hava koşullandırma test odasının bakımı sırasında nelere dikkat edilmelidir?
UV lamba tüplerini ve sıcaklık ile nem kontrol sistemini düzenli olarak kontrol ederek cihazın normal çalışmasını sağlayın.

6, Uzun süreli sürekli testler yapılabilir mi?
Evet, cihaz uzun süreli sürekli testleri destekler ve çeşitli ihtiyaçlara cevap verebilir.

7, UV hava koşullandırma test odası satın aldıktan sonra hangi garantiler verilir?
Garanti hizmetleri sunuyoruz ve cihazın normal çalışmasını sağlamak için gerekli satış sonrası desteği sağlıyoruz.

8, Ultraviyole hava koşullandırma test odasının özellikleri nelerdir?
Bu tip cihazlar iki modelde gelir: eğimli kule tipi ve kutu tipi. Her iki model de paslanmaz çelik veya boyalı dış kutularla sunulabilir ve ihtiyaçlarınıza göre özelleştirilebilir.