PV 3930

automotive accelerated weathering standards – PV 3930 – Volkswagen

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artificial weathering

PV 3930

non-metallic materials – moist, hot climate

A standard for testing the ageing behaviour of plastics (such as change in colour and/or gloss), which are likely to be subjected to weather and daylight. Samples undergo an accelerated weathering programme of a moist, hot climate and are irradiated using xenon arc light and are periodically moistened.

 

Filters shall be used to adapt the Xenon arc light to the global radiation with its spectral distribution of ultraviolet and visible radiation. The test conditions each describe a year cycle, with reference to conditions of moist, hot climate zones such as Florida.

PV 3930 standard requirements

proposed parameter rangewithin current operating range
(yes/no)
standard refPV3930
irradiance0.54W/m² at 340nm or 60W/m² at 300-400nmyes
filter systemdaylight Qyes
chamber temperature35-45 degrees lightyes
BST/BPT temperatureBPT 65 degrees light ±3yes
relative humidity60-80%yes
light cyclecontinuous lightyes
spray cycle120 mins light, 18 mins light and spray yes
test duration1600hrs

NOTE: Additional tests may be required, along with visual evaluation, if the ageing causes changes in the mechanical properties and/or cracking. Further tests may include tensile tests, determination of impact resistance, determination of hardness and microscopic examinations.

Why impact?

impact are a one stop shop. Our team have over 120 years of combined experience in the testing industry and can advise you on what type of accelerated weathering testing you need. No matter the question, product, or standard, contact us today for guidance on testing for your product. With our UKAS accreditation, we can test to anything that falls within the boundaries of our extensive flexible scope. impact will always do their best to help you with your testing needs and our experienced weathering consultant, Jo, will advise you on the best method of testing.

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