欢迎来到麦多课文档分享! | 帮助中心 海量文档,免费浏览,给你所需,享你所想!
麦多课文档分享
全部分类
  • 标准规范>
  • 教学课件>
  • 考试资料>
  • 办公文档>
  • 学术论文>
  • 行业资料>
  • 易语言源码>
  • ImageVerifierCode 换一换
    首页 麦多课文档分享 > 资源分类 > PDF文档下载
    分享到微信 分享到微博 分享到QQ空间

    SANS 50148-1-2003 Respiratory protective devices - Threads for facepieces Part 1 Standard thread connection《呼吸防护设备 面罩螺纹 第1部分 标准螺纹连接》.pdf

    • 资源ID:1030613       资源大小:243.29KB        全文页数:11页
    • 资源格式: PDF        下载积分:10000积分
    快捷下载 游客一键下载
    账号登录下载
    微信登录下载
    二维码
    微信扫一扫登录
    下载资源需要10000积分(如需开发票,请勿充值!)
    邮箱/手机:
    温馨提示:
    如需开发票,请勿充值!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)。
    如需开发票,请勿充值!如填写123,账号就是123,密码也是123。
    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,交流精品资源
     
    账号:
    密码:
    验证码:   换一换
      忘记密码?
        
    友情提示
    2、PDF文件下载后,可能会被浏览器默认打开,此种情况可以点击浏览器菜单,保存网页到桌面,就可以正常下载了。
    3、本站不支持迅雷下载,请使用电脑自带的IE浏览器,或者360浏览器、谷歌浏览器下载即可。
    4、本站资源下载后的文档和图纸-无水印,预览文档经过压缩,下载后原文更清晰。
    5、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。

    SANS 50148-1-2003 Respiratory protective devices - Threads for facepieces Part 1 Standard thread connection《呼吸防护设备 面罩螺纹 第1部分 标准螺纹连接》.pdf

    1、 Collection of SANS standards in electronic format (PDF) 1. Copyright This standard is available to staff members of companies that have subscribed to the complete collection of SANS standards in accordance with a formal copyright agreement. This document may reside on a CENTRAL FILE SERVER or INTRA

    2、NET SYSTEM only. Unless specific permission has been granted, this document MAY NOT be sent or given to staff members from other companies or organizations. Doing so would constitute a VIOLATION of SABS copyright rules. 2. Indemnity The South African Bureau of Standards accepts no liability for any

    3、damage whatsoever than may result from the use of this material or the information contain therein, irrespective of the cause and quantum thereof. ICS 13.340.30 ISBN 0-626-14772-7 SANS 50148-1:2003 Edition 2 EN 148-1:1999 Edition 2 SOUTH AFRICAN NATIONAL STANDARD Respiratory protective devices Threa

    4、ds for facepieces Part 1: Standard thread connection This national standard is the identical implementation of EN 148-1:1999 and is adopted with the permission of CEN, rue de Stassart 36, B-1050 Brussels. Published by Standards South Africa 1 dr lategan road groenkloof ! private bag x191 pretoria 00

    5、01 tel: 012 428 7911 fax: 012 344 1568 international code + 27 12 www.stansa.co.za Standards South Africa 2003 SANS 50148-1:2002 Edition 2 EN 148-1:1999 Edition 2 Table of changes Change No. Date Scope National foreword This South African standard was approved by National Committee STANSA SC 5120.11

    6、D, Respiratory equipment, in accordance with procedures of Standards South Africa, in compliance with annex 3 of the WTO/TBT agreement. This edition cancels and replaces the first edition (SABS EN 148-1:1987). EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 148-1February 1999ICS 13.340.30 Supersed

    7、es EN 148-1:1987Descriptors: respiratory protective equipment, personal protective equipment, accident prevention, junctions, threadedfittings, screw threads, dimensionsEnglish versionRespiratory protective devices - Threads for facepieces - Part 1:Standard thread connectionAppareils de protection r

    8、espiratoire - Filetages pour picesfaciales - Partie 1: Raccord filetage standardAtemschutzgerte - Gewinde fr Atemanschlsse - Teil 1:RundgewindeanschluThis European Standard was approved by CEN on 8 January 1999.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate

    9、 the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Central Secretariat or to any CEN member.This European Standard exists in

    10、 three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of A

    11、ustria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGCentral Secre

    12、tariat: rue de Stassart, 36 B-1050 Brussels 1999 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 148-1:1999 EPage 2EN 148-1:1999ForewordThis European Standard has been prepared by Technical Committee CEN/TC 79“Respiratory protective

    13、devices“, the secretariat of which is held by DIN.This European Standard supersedes EN 148-1:1987This European Standard shall be given the status of a national standard, either bypublication of an identical text or by endorsement, at the latest by August 1999, andconflicting national standards shall

    14、 be withdrawn at the latest by August 1999.It is identical to the 1987 edition which was approved under old CEN rules, with theapproved Corrigendum EN 148-1:1987/AC:1992 incorporated (see heading column 4 intable in 3.1), but with no other technical changes.This European Standard has been prepared u

    15、nder a mandate given to CEN by theEuropean Commission and the European Free Trade Association, and supports essentialrequirements of Directive 89/686/EEC.For relationship(s) with EU Directive(s), see informative Annex ZA, which is an integralpart of this standard.According to the CEN/CENELEC Interna

    16、l Regulations, the national standardsorganizations of the following countries are bound to implement this European Standard:Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland,Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerlandand th

    17、e United Kingdom.Page 3EN 148-1:19991 ScopeThis European Standard is applicable to standard threads for respiratory protectivedevices. This standard does not apply to diving equipment and to positive pressuredemand breathing apparatus.2 Standard thread connector (C)Dimensions in millimetres2.1 Exter

    18、nal thread2.1.1 Without socket for filters (CA)Figure 12.1.2 With socket for equipment connectors other than for filters (CAT)Dimensions in millimetresFigure 2*) Specification see clause 3Page 4EN 148-1:19992.2 Internal threadDimensions in millimetresFigure 3a) Figure 3b) Figure 3c)Dimensions in mil

    19、limetres2.3 GasketFigure 43 Threads3.1 Dimensions of threadsFigure 5*) Specification see clause 3Page 5EN 148-1:1999Table 1: Thread limitsDimensions in millimetresThread limits Pitch Numberof threadsper25,4ThreadheightRadiusExternal thread Internal threadThread MajordiameterMinordiameterMajordiamete

    20、rMinordiameterd1d2D1D2hzt1rmax. min. max. min. min. max.Rd 40 x 1/7 40,00 39,70 38,40 40,16 38,56 38,86 3,629 7 0,8 1,2253.2 Gauges for threadsThe thread Rd 40 x 1/7 has to be checked with the following gauges:3.2.1 Ring gauges for external threadDimensions in millimetresFigure 6a)Figure 6b): GO-gau

    21、ge Figure 6c): NOT GO-gaugeThe gauge shall be capable of being threadedon smoothly.It shall not be possible to pass the gaugecompletely over the thread; it shall engage theinitial thread then bind.Page 6EN 148-1:1999Table 2: Dimensions of gaugesDimensions in millimetresGO-gauge NOT GO-gaugeThreadd1m

    22、ax.d2max.manufacturingtolerance ford1 and d2permissible wearford1 and d2hmanufacturingtolerance forhrd3manufacturingtolerance ford3d4 bRd 40 x 1/7 40,00 38,40 + 0,015 + 0,050 3,629 + 0,009 1,225 39,70 + 0,006 72 153.2.2 Plug gauges for internal threadDimensions in millimetresFigure 7a)Figure 7b): GO

    23、-gauge Figure 7c): NOT GO-gaugeThe gauge shall be capable of being threadedon smoothly.It shall not be possible to introduce the gaugecompletely over the thread; it shall engage theinitial thread then bind.Page 7EN 148-1:1999Table 3: Dimensions of gaugesDimensions in millimetresGO-gauge NOT GO-gauge

    24、Threadd1min.d2min.manufacturingtolerance ford1 and d2permissible wearford1 and d2hmanufacturingtolerance forhrl1 d3manufacturingtolerance ford3l2Rd 40 x 1/7 40,16 38,56 + 0,015 - 0,050 3,629 + 0,009 1,225 15 38,86 + 0,006 10Page 8EN 148-1:1999Annex ZA (informative)Clauses of this European Standard a

    25、ddressing essential requirements or otherprovisions of EU Directives.This European Standard has been prepared under a mandate given to CEN by theEuropean Commission and the European Free Trade Association and supports essentialrequirements of EU Directive 89/686/EEC.WARNING: Other requirements and o

    26、ther EU Directives may be applicable to theproducts falling within the scope of this standard.The following clauses of this standard are likely to support requirements of Directive89/686/EEC, Annex II:EU Directive 89/686/EEC, Annex II: Clauses of this standard:1.2.1 21.3.3 22.8 22.10 23.10.1 2Compliance with the clauses of this standard provides one means of conforming with thespecific essential requirements of the Directive concerned and associated EFTAregulations.


    注意事项

    本文(SANS 50148-1-2003 Respiratory protective devices - Threads for facepieces Part 1 Standard thread connection《呼吸防护设备 面罩螺纹 第1部分 标准螺纹连接》.pdf)为本站会员(twoload295)主动上传,麦多课文档分享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,请立即通知麦多课文档分享(点击联系客服),我们立即给予删除!




    关于我们 - 网站声明 - 网站地图 - 资源地图 - 友情链接 - 网站客服 - 联系我们

    copyright@ 2008-2019 麦多课文库(www.mydoc123.com)网站版权所有
    备案/许可证编号:苏ICP备17064731号-1 

    收起
    展开