ASTM D6625-0 蛍光 UV 集光装置と水曝露装置を使用して塗装板に塗布されたポリッシュの保護特性をテストするための標準手法

ASTM D6625- 蛍光紫外線結露光と水曝露装置を用いた塗装パネルの研磨保護性能試験 – Describes the procedure required to evaluate the protective performance of polished films by ultraviolet irradiation, 熱, そして湿気. Unlike ASTM G155 and ISO 4892-4 practices, whose lighting sources are xenon lamps and carbon arcs, それぞれ, this test protocol relies on the use of fluorescent ultraviolet rays. The method is therefore based on the principles of the ASTM G154 standard.

Evaluate polishing behavior by accelerating weathering use and taking into account:

ASTM D6625-0 蛍光 UV 集光装置と水曝露装置を使用して塗装板に塗布されたポリッシュの保護特性をテストするための標準手法

The goal of ASTM D6625 is to evaluate the ability of polishes to protect against degradation caused by heat, UV light exposure, and humidity through the use of accelerated aging tests. The latter involves exposing samples within the device to water condensation, ultraviolet radiation and temperature changes up to a predetermined amount of time as a means of simulating decay caused by water and sunlight. This property is determined by periodic gloss readings of the polished and unpolished areas of the sample. 加えて, this periodic assessment allows the evolution of the property to be monitored. Unfortunately, the method does not provide a correlation that can be used to predict the outdoor performance of the sample. 一方で,

The main factor to consider when running this test is: the amount of polish used on the sample.

Typical test parameters for ASTM D6625:

The number and size of samples need to be specified. テスト仕様を表に示します。 1.

ASTM D6625-0 蛍光 UV 集光装置と水曝露装置を使用して塗装板に塗布されたポリッシュの保護特性をテストするための標準手法

口論製品仕様書
Application conditionsThe temperature is between 21 and 27°C

Relative humidity is between 20% そして 80%

irradiance指定する必要があります
Exposure periodCondensation at 50°C for 4 時間 (no light)
Uv exposure at 70°C for 5 時間 (no moisture)

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