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    氙燈老化試驗箱ASTM G154-16標準介紹

    發布時間:2019-04-27 11:25    點擊數:    【
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    氙燈老化試驗箱ASTM G154-16標準介紹
    ASTM G154-16是個關于暴露在陽光日曬、持續潮濕、加熱而導致產品性能老化的測試方法,現行標準修訂于2016年。
     
    1. Scope
    1.1 This practice is limited to the basic principles for operating a fluorescent UV lamp and water apparatus; on its own, it does not deliver a specific result.
    1.2 It is intended to be used in conjunction with a practice or method that defines specific exposure conditions for an application along with a means to evaluate changes in material properties. This practice is intended to reproduce the weathering effects that occur when materials are exposed to sunlight (either direct or through window glass) and moisture as rain or dew in actual usage. This practice is limited to the procedures for obtaining, measuring, and controlling conditions of exposure.
    Note 1: Practice G151 describes general procedures to be used when exposing nonmetallic materials in accelerated test devices that use laboratory light sources.
    Note 2: A number of exposure procedures are listed in an appendix; however, this practice does not specify the exposure conditions best suited for the material to be tested.
    1.3 Test specimens are exposed to fluorescent UV light under controlled environmental conditions. Different types of fluorescent UV lamp sources are described.
    Note 3: In this standard, the terms UV light and UV radiation are used interchangeably.
    1.4 Specimen preparation and evaluation of the results are covered in ASTM methods or specifications for specific materials. General guidance is given in Practice G151 and ISO 4892-1.
    Note 4: General information about methods for determining the change in properties after exposure and reporting these results is described in ISO 4582 and Practice D5870.
    1.5 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
    1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
    1.7 This standard is technically similar to ISO 4892-3 and ISO 16474-3.
     
    2. Referenced Documents
    ASTM Standards
    D5870 Practice for Calculating Property Retention Index of Plastics
    D6631 Guide for Committee D01 for Conducting an Interlaboratory Study for the Purpose of Determining the Precision of a Test Method
    G113 Terminology Relating to Natural and Artificial Weathering Tests of Nonmetallic Materials
    G151 Practice for Exposing Nonmetallic Materials in Accelerated Test Devices that Use Laboratory Light Sources
    G177 Tables for Reference Solar Ultraviolet Spectral Distributions: Hemispherical on 37 Tilted Surface
    ISO Standards
    ISO 16474-3 Paints and VarnishesMethods of Exposure to Laboratory Light SourcesPart
     
    3: Fluorescent UV Lamps
    ISO4582 PlasticsDetermination of the Changes of Colour and Variations in Properties After Exposure to Daylight Under Glass, Natural Weathering or Artificial Light
     
    ISO4892-1
    QUV老化試驗箱用于ASTM G154 cycle-4的測試方法
     
    ▼ASTM G154-16第三方檢測機構
    以上標準信息來自互聯網搜索整理,如需了解完整的ASTM G154-16的信息或ASTM G154-16標準解讀,歡迎詳詢。
     
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