ASTM D1003-2011 Standard Test Method for Haze and Luminous Transmittance of Transparent Plastics《透明塑料混浊度和透光率的标准试验方法》.pdf
《ASTM D1003-2011 Standard Test Method for Haze and Luminous Transmittance of Transparent Plastics《透明塑料混浊度和透光率的标准试验方法》.pdf》由会员分享,可在线阅读,更多相关《ASTM D1003-2011 Standard Test Method for Haze and Luminous Transmittance of Transparent Plastics《透明塑料混浊度和透光率的标准试验方法》.pdf(8页珍藏版)》请在麦多课文档分享上搜索。
1、Designation:D1003071Designation: D1003 11Standard Test Method forHaze and Luminous Transmittance of Transparent Plastics1This standard is issued under the fixed designation D1003; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the
2、 year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.This test method has been approved for use by agencies of the Department of Defense to replace Method 3022 of Federal Tes
3、t MethodStandard 406.1NOTEAdded research report footnote to 7.5.1 editorially in September 2008.1. Scope*1.1 This test method covers the evaluation of specific light-transmitting and wide-angle-light-scattering properties of planarsections of materials such as essentially transparent plastic. Two pr
4、ocedures are provided for the measurement of luminoustransmittance and haze. Procedure A uses a hazemeter as described in Section 5 and Procedure B uses a spectrophotometer asdescribed in Section 8. Material having a haze value greater than 30 % is considered diffusing and should be tested in accord
5、ancewith Practice E167E2387.1.2 The values stated in SI units are to be regarded as standard.NOTE 1For greater discrimination among materials that scatter a high percent of light within a narrow forward angle, such as is the case with abradedtransparent plastics, adjust the hazemeter and perform mea
6、surements in accordance with Test Method D1044.1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibilityof the user of this standard to establish appropriate safety and health practices and determine the applicability of regul
7、atorylimitations prior to use.NOTE 2This test method is not equivalent to ISO 134681 and ISO/DIS 14782.13468-1 and ISO/DIS 14782.2. Referenced Documents2.1 ASTM Standards:2D618 Practice for Conditioning Plastics for TestingD883 Terminology Relating to PlasticsD1044 Test Method for Resistance of Tran
8、sparent Plastics to Surface Abrasion D1898Practice for Sampling of PlasticsE167Practice for Goniophotometry of Objects and MaterialsE259 Practice for Preparation of Pressed Powder White Reflectance Factor Transfer Standards for Hemispherical andBi-Directional GeometriesE284 Terminology of Appearance
9、E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method Practice for Conductingan Interlaboratory Study to Determine the Precision of a Test MethodE2387 Practice for Goniometric Optical Scatter Measurements2.2 ISO Standards:3ISO 134681ISO 13468-1 PlasticsDet
10、ermination of the Total Luminous Transmittance of Transparent MaterialsISO/DIS 14782 PlasticsDetermination of Haze of Transparent Materials3. Terminology3.1 DefinitionsTerms applicable to this test method are defined in Terminologies D883 and E284.3.2 Definitions of Terms Specific to This Standard:1
11、This test method is under the jurisdiction of ASTM Committee D20 on Plastics and is the direct responsibility of Subcommittee D20.40 on Optical Properties.Current edition approved Nov. 1, 2007. Published November 2007. Originally approved in 1949. Last previous edition approved in 2000 as D1003-00.
12、DOI:10.1520/D1003-07E01.Current edition approved April 15, 2011. Published April 2011. Originally approved in 1949. Last previous edition approved in 2007 as D1003 - 071. DOI:10.1520/D1003-11.2For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at se
13、rviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.3Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http:/www.ansi.org.1This document is not an ASTM standard
14、and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Becauseit may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases onl
15、y the current versionof the standard as published by ASTM is to be considered the official document.*A Summary of Changes section appears at the end of this standard.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.3.2.1 haze, nin tran
16、smission, the scattering of light by a specimen responsible for the reduction in contrast of objects viewedthrough it. The percent of transmitted light that is scattered so that its direction deviates more than a specified angle from thedirection of the incident beam.3.2.1.1 DiscussionIn this test m
17、ethod, the specified angle is 0.044 rad (2.5).3.2.2 luminous, adjweighted according to the spectral luminous efficiency function V() of the CIE (1987).3.2.3 luminous transmittance, nthe ratio of the luminous flux transmitted by a body to the flux incident upon it.4. Significance and Use4.1 Light tha
18、t is scattered upon passing through a film or sheet of a material can produce a hazy or smoky field when objectsare viewed through the material. Another effect can be veiling glare, as occurs in an automobile windshield when driving into thesun.4.2 Although haze measurements are made most commonly b
19、y the use of a hazemeter, a spectrophotometer may be used,provided that it meets the geometric and spectral requirements of Section 5. The use of a spectrophotometer for haze measurementof plastics can provide valuable diagnostic data on the origin of the haze,4and Procedure B is devoted to the use
20、of aspectrophotometer.4.2.1 Procedure A (hazemeter) test values are normally slightly higher and less variable than Procedure B (spectrophotometer)test values.4.3 Regular luminous transmittance is obtained by placing a clear specimen at some distance from the entrance port of theintegrating sphere.
21、However, when the specimen is hazy, the total hemispherical luminous transmittance must be measured byplacing the specimen at the entrance port of the sphere. The measured total hemispherical luminous transmittance will be greaterthan the regular luminous transmittance, depending on the optical prop
22、erties of the sample. With this test method, the specimenis necessarily placed at the entrance port of the sphere in order to measure haze and total hemispherical luminous transmittance.4.4 Haze data representative of the material may be obtained by avoiding heterogeneous surface or internal defects
23、 notcharacteristic of the material.4.5 Haze and luminous-transmittance data are especially useful for quality control and specification purposes.4.6 Before proceeding with this test method, reference should be made to the specification of the material being tested. Any testspecimen preparation, cond
24、itioning, dimensions, or testing parameters, or combination thereof, covered in the materialsspecification shall take precedence over those mentioned in this test method. If there are no material specifications, then the defaultconditions apply.5. Test Specimens5.1 Sampling shall be statistically ad
- 1.请仔细阅读文档,确保文档完整性,对于不预览、不比对内容而直接下载带来的问题本站不予受理。
- 2.下载的文档,不会出现我们的网址水印。
- 3、该文档所得收入(下载+内容+预览)归上传者、原创作者;如果您是本文档原作者,请点此认领!既往收益都归您。
下载文档到电脑,查找使用更方便
10000 积分 0人已下载
下载 | 加入VIP,交流精品资源 |
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- ASTMD10032011STANDARDTESTMETHODFORHAZEANDLUMINOUSTRANSMITTANCEOFTRANSPARENTPLASTICS 透明 塑料 混浊 透光率 标准 试验
链接地址:http://www.mydoc123.com/p-509110.html