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              ASTM G154-16标准

              来源:本站 发布时间:2018-11-06 19:11:00 阅读:957

              本页面标准信息均来源于网络收集,或由参与标准制定的供应商提供,只作为参考使用,为确保测试结果的准确性、节省您的时间,如需ASTM G154-16标准详细信息或ASTM G154-16具体测试方法,欢迎与我们技术人员联系或给我们留言,我们将为您相关的技术支持。

               

              ASTM G154-16标准介绍

              ASTM G154-16是个关于暴露在阳光日晒、持续潮湿、加热而导致产品性能老化的测试方法,现行标准修订于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老化试验箱用于ASTM G154 cycle-4的测试方法


               

              ▼ASTM G154-16第三方检测机构

              以上标准信息来自互联网搜索整理,如需了解完整的ASTM G154-16的信息或ASTM G154-16标准解读,欢迎详询。

               

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