Research Article
Weatherability of Polypropylene by Accelerated Weathering Tests and Outdoor Exposure Tests in Japan
Table 3
Exposed PP test pieces and conditions for 800 h accelerated weathering tests.
| | Institution | Test pieces | Machine name | Manufacturer | Irradiance (measurement wavelength range) | BPT | Chamber temperature | Chamber humidity | Water spray time per total irradiation time | | (W/m2/(nm)) | (°C) | (°C) | (%) | (min/(min)) |
| | A | 1, 4, 5 | 7.5 kW Super Xenon Weather Meter SX75 | Suga Test Instruments | 60/(300–400) | 83 | — | 50 | — | | B | 2, 3, 6 | Metaling Weather Meter SUV-W151 | Iwasaki Electric | 1000 | | 50 | 50 (RH) | — | | C | 1, 4, 5 | Super Xenon Weather Meter SX75 | Suga Test Instruments | 60/(300–400) | 63 | 38 | 50 | 18/(120) | | D | 2, 3, 6 | Low-Temperature Cycle Weather Meter
WEL-75XS-LHP-BEc | Suga Test Instruments | 390/(300–700) | 63 ± 3 | 42 | 50 (set value) | 12/(60) | | E | 1, 4, 5 | Super Xenon Weather Meter SC750-WA | Suga Test Instruments | 180/(300–400) | 63 | No control (26 35) | 50 | 18/(120) | | F | 2, 3, 6 | Super Xenon Weather Meter SX75 | Suga Test Instruments | 180/(300–400) | 63 ± 1 | 33 ± 1 | 50 ± 10 (RH) | — | | G | 2, 3, 6 | Super Xenon Weather Meter (2-Tank Independent Type) SX2D-75 | Suga Test Instruments | 180/(300–400) | 63 ± 1 | 38 ± 1 | 50 ± 5 (RH) | 18/(120) | | H | 1, 4, 5 | Atlas Weatherometer Ci3000 | Atlas | 60/(300–400) | 63 ± 2 | 38 ± 3 | 50 | 18/(120) | | I | 2, 3, 6 | Super Xenon Weather Meter SX75 | Suga Test Instruments | 180/(300–400) | 63 ± 3 | — | 50 | 18/(120) | | J | 1, 4, 5 | Super Xenon Weather Meter SX75-WAP | Suga Test Instruments | 180/(300–400) | 63 | 28 ± 3 | 60 (RH) | 2/(300) |
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Reported by manufacturer. During spray. During irradiation. RH: relative humidity.
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