ImageVerifierCode 换一换
格式:PDF , 页数:2 ,大小:38.06KB ,
资源ID:168677      下载积分:13 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/168677.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_E_1516_-_98.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_E_1516_-_98.pdf

1、Designation:E 1516 98Standard Guide forPackaging of Unbound Respirable Silicon CarbideWhiskers1This standard is issued under the fixed designation E 1516;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A num

2、ber in parentheses indicates the year of last reapproval.Asuperscript epsilon(e)indicates an editorial change since the last revision or reapproval.1.Scope1.1 This guide covers the packaging of unbound respirablesilicon carbide(SiC)whiskers and materials containing respi-rable silicon carbide whiske

3、rs.Airborne respirable siliconcarbide whiskers are considered a potential health hazard.1.2 All applicable federal,state,county,local or otherregulations must be complied with when this guide is used.1.3 This standard does not purport to address all of thesafety concerns,if any,associated with its u

4、se.It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:E 1437 Practice for Handling Silicon Carbide Whiskers2E 1451 Guide for Dispos

5、al of Wastes Containing RespirableSilicon Carbide Whiskers2E 1718 Guide for Administrative and Engineering Controlsfor Silicon Carbide Whisker Work Areas22.2ANSI Standard:ANSI Z9.2-1979,Fundamentals Governing the Design andOperation of Local Exhaust Systems33.Terminology3.1 Definitions:3.1.1 respira

6、ble silicon carbide whiskers,na crystallinesilicon carbide fiber,approximately cylindrical in shape,with adiameter less than 3.0 m and an aspect ratio equal to or greaterthan 5:1.3.1.2 unbound silicon carbide whiskers,nwhiskers andfibers with the potential to become airborne.4.Significance and Use4.

7、1 Packaging of unbound respirable SiC whiskers,andmaterials containing unbound respirable SiC whiskers,mayresult in a potential respirable exposure to SiC whiskers.4.2 This guide is intended for use by health and safetyprofessionals as well as packaging specialists in preparingprocedures for safe pa

8、ckaging,and in preparing relevantdocumentation.5.Material Characteristics to Be Considered inPackaging Design5.1 Silicon carbide whiskers can be electrostaticallycharged;therefore,packaging capable of generating electro-static charges may attract and hold whiskers on the outsidesurface,eventually al

9、lowing contamination of areas outside theimmediate work area during subsequent container handling.5.2 The aerodynamic equivalent diameter of unbound sili-con carbide whiskers is such that they easily become airborne.5.3 Angles as steep as 70 may be necessary to ensure flowof some unbound whiskers or

10、 unbound whisker-containingmaterials.6.Packaging Recommendations to Limit PotentialPersonnel Exposure6.1 Rigid,non-porous,tightly-sealing containers withsmooth inner surfaces are preferred to rough or porous con-tainers.Examples of these preferred containers include plasticdrums,fiber drums coated i

11、nternally,metal drums,metal drumscoated internally,and bulk containers.Containers havingporous or rough surfaces,such as uncoated fiberboard(paper)drums,which may entrap whiskers,should not be used whenthe container will be in contact with the silicon carbidewhiskers.6.2 Bags,plastic or other,when u

12、sed as container linersallow whisker release during opening and closing of the bags.Plastic bags should be used only inside a supporting containerfor either product transfer or waste disposal.6.3 The inside and outside surfaces of a reusable containershould be wet-wiped or vacuumed to remove any adh

13、eringloose SiC whiskers and the cleanup residue disposed accordingto Guide E 1451.6.4 The container openings for removal or transferring ofsilicon carbide whiskers should be as small as practicable forthe process in question.6.5 A bag or container of respirable SiC whiskers should beopened/closed,an

14、d all transferring of materials should occur,in a manner that minimizes whisker-release and allows capture1This guide is under the jurisdiction ofASTM Committee E-34 on OccupationalHealth and Safety and is the direct responsibility of Subcommittee E34.70 on SingleCrystal Ceramic Whiskers.Current edi

15、tion approved Apr.10,1998.Published June 1998.Originallypublished as E 1516 93.Last previous edition E 1516 93.2Annual Book of ASTM Standards,Vol 11.03.3Available from American National Standards Institute,11 W.42nd St.,13thfloor,New York,NY 10036.1Copyright ASTM,100 Barr Harbor Drive,West Conshohoc

16、ken,PA 19428-2959,United States.of released whiskers such that exposure is below the airbornecontamination limits described in Practice E 1437.This mayrequire handling equipment and practices that minimize airinrush/expelling into/out of the bag or container.The equip-ment should include mechanical ventilation such as a drum-shroud,laboratory hood,downdraft hood,or other ventilationdevice(s)appropriate to the packaging and handling methodemployed.The ventilation should be designed and applied in

copyright@ 2008-2023 wnwk.com网站版权所有

经营许可证编号:浙ICP备2024059924号-2