Journal of Polymers / 2016 / Article / Tab 4

Research Article

Weatherability of Polypropylene by Accelerated Weathering Tests and Outdoor Exposure Tests in Japan

Table 4

Features of lamps for weathering test machine.

Lamp typeMechanismCharacteristic of spectral distributionStandard related to plastics

Xenon arcLight by passing electricity through ionized Xenon gas in glass tubeExtremely resembling sunlight in UV and visible partISO 4892-2 (same as JIS K7350-2) [23]
Open flame carbon arcCarbon arc in open airResembling sunlight UV-B (280–315 nm) and severalfold intensity in UV-A (315–400 nm)ISO 4892-4 (same as JIS K7350-4) [24]
Ultraviolet carbon arcCarbon arc in glass tubeMajor peak at 388 nm, minor peaks at 358 and 415 nmJIS B7751 [25], ASTM D5031 [26]
Metal halide lampLight by passing electricity through ionized mercury and metal halide gases in quartz glass tube20–30 times UV (270–450 nm) as compared to sunlightNone

ISO: International Standard, JIS: Japan Industrial Standard, and ASTM: American Society for Testing and Materials.

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