ImageVerifierCode 换一换
格式:PDF , 页数:3 ,大小:81.91KB ,
资源ID:180888      下载积分:8 积分
快捷下载
登录下载
邮箱/手机:
温馨提示:
快捷下载时,用户名和密码都是您填写的邮箱或者手机号,方便查询和重复下载(系统自动生成)。 如填写123,账号就是123,密码也是123。
特别说明:
请自助下载,系统不会自动发送文件的哦; 如果您已付费,想二次下载,请登录后访问:我的下载记录
支付方式: 支付宝扫码支付 微信扫码支付   
验证码:   换一换

加入VIP,免费下载
 

温馨提示:由于个人手机设置不同,如果发现不能下载,请复制以下地址【https://www.wnwk.com/docdown/180888.html】到电脑端继续下载(重复下载不扣费)。

已注册用户请登录:
账号:
密码:
验证码:   换一换
  忘记密码?
三方登录: QQ登录  

下载须知

1: 本站所有资源如无特殊说明,都需要本地电脑安装OFFICE2007和PDF阅读器。
2: 试题试卷类文档,如果标题没有明确说明有答案则都视为没有答案,请知晓。
3: 文件的所有权益归上传用户所有。
4. 未经权益所有人同意不得将文件中的内容挪作商业或盈利用途。
5. 本站仅提供交流平台,并不能对任何下载内容负责。
6. 下载文件中如有侵权或不适当内容,请与我们联系,我们立即纠正。
7. 本站不保证下载资源的准确性、安全性和完整性, 同时也不承担用户因使用这些下载资源对自己和他人造成任何形式的伤害或损失。

版权提示 | 免责声明

本文(ASTM_D_2454_-_18.pdf)为本站会员(益****师)主动上传,蜗牛文库仅提供信息存储空间,仅对用户上传内容的表现方式做保护处理,对上载内容本身不做任何修改或编辑。 若此文所含内容侵犯了您的版权或隐私,请立即通知蜗牛文库(发送邮件至admin@wnwk.com或直接QQ联系客服),我们立即给予删除!

ASTM_D_2454_-_18.pdf

1、Designation:D245418Standard Practice forDetermining the Effect of Overbaking on Organic Coatings1This standard is issued under the fixed designation D2454;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A nu

2、mber in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope*1.1 This practice covers the determination of the time-temperature effect of overbaking on the physical and chemicalproperties of organic coatin

3、gs.1.2 The values stated in SI units are to be regarded asstandard.No other units of measurement are included in thisstandard.1.3 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of whoever uses this standard to consult andest

4、ablish appropriate safety,health,and environmental prac-tices and determine the applicability of regulatory limitationsprior to use.Specific hazard statements are given in Section 7.1.4 This international standard was developed in accor-dance with internationally recognized principles on standard-iz

5、ation established in the Decision on Principles for theDevelopment of International Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2D522 Test Methods for Mandrel Bend Test of AttachedOrgan

6、ic CoatingsD523 Test Method for Specular GlossD609 Practice for Preparation of Cold-Rolled Steel Panelsfor Testing Paint,Varnish,Conversion Coatings,andRelated Coating ProductsD823 Practices for Producing Films of Uniform Thicknessof Paint,Coatings and Related Products on Test PanelsD1005 Test Metho

7、d for Measurement of Dry-Film Thick-ness of Organic Coatings Using MicrometersD1308 Test Method for Effect of Household Chemicals onClear and Pigmented Organic FinishesD1640 Test Methods for Drying,Curing,or Film Formationof Organic CoatingsD1729 Practice for Visual Appraisal of Colors and ColorDiff

8、erences of Diffusely-Illuminated Opaque MaterialsD1730 PracticesforPreparationof AluminumandAluminum-Alloy Surfaces for PaintingD1731 Practices for Preparation of Hot-Dip Aluminum Sur-faces for PaintingD2197 Test Method for Adhesion of Organic Coatings byScrape AdhesionD2201 Practice for Preparation

9、 of Zinc-Coated and Zinc-Alloy-Coated Steel Panels for Testing Paint and RelatedCoating ProductsD2244 Practice for Calculation of Color Tolerances andColor Differences from Instrumentally Measured ColorCoordinatesD2794 Test Method for Resistance of Organic Coatings tothe Effects of Rapid Deformation

10、(Impact)D3359 Test Methods for Rating Adhesion by Tape TestD3363 Test Method for Film Hardness by Pencil TestD6386 Practice for Preparation of Zinc(Hot-Dip Galva-nized)Coated Iron and Steel Product and HardwareSurfaces for PaintingD7091 Practice for Nondestructive Measurement of DryFilm Thickness of

11、 Nonmagnetic Coatings Applied toFerrous Metals and Nonmagnetic,Nonconductive Coat-ings Applied to Non-Ferrous MetalsD7396 Guide for Preparation of New,Continuous Zinc-Coated(Galvanized)Steel Surfaces for PaintingE805 Practice for Identification of Instrumental Methods ofColor or Color-Difference Mea

12、surement of Materials3.Terminology3.1 Definitions:3.1.1 overbaking,nan exposure of the coating to a mod-erately higher temperature or to a longer period of baking,orboth,than recommended by the manufacturer of the coating fornormal curing.3.1.1.1 DiscussionThis condition is in contrast to“heatresist

13、ance”which is a parameter relating to the service life ofa coating.1This practice is under the jurisdiction of ASTM Committee D01 on Paint andRelated Coatings,Materials,and Applications and is the direct responsibility ofSubcommittee D01.27 on Accelerated Testing.Current edition approved July 1,2018

14、.Published July 2018.Originally approvedin 1966.Last previous edition approved in 2014 as D2454 14.DOI:10.1520/D2454-18.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to t

15、he standards Document Summary page onthe ASTM website.*A Summary of Changes section appears at the end of this standardCopyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United StatesThis international standard was developed in accordance with internationa

16、lly recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.1 4.Summary of Practice4.1 Four panels are prepared and baked at the schedulenormally recommended for the coating.Two of the panels arethen removed and the remaining two are subjected to anadditional overbake in which the time and temperature aremutually agre

copyright@ 2008-2023 wnwk.com网站版权所有

经营许可证编号:浙ICP备2024059924号-2