反馈文件质量
upload/clara_nz_2025_10/clara.nz/standards/documents/ISO/00001-05000/ISO 03821-2019.pdf
Gas welding equipment -- Rubber hoses for welding, cutting and allied processes 🔍
ISO/TC 44/SC 8 Equipment for gas welding, cutting and allied processes ISO, ISO 3821, 5, 2019
英语 [en] · PDF · 1.2MB · 2019 · 📝 标准文档 · 🚀/lgli/nexusstc/upload · Save
描述
This document specifies requirements for rubber hoses (including twin hoses) for welding, cutting and allied processes. This document specifies requirements for rubber hoses for normal duty of 2 MPa (20 bar) and light duty [limited to hoses for maximum working pressure of 1 MPa (10 bar) and with bore up to and including 6,3 mm]. This document applies to hoses operated at temperatures −20 °C to +60 °C and used in:. — gas welding and cutting;. — arc welding under the protection of an inert or active gas;. — processes allied to welding and cutting, in particular, heating, brazing, and metallization. This document does not specify requirements for hose assemblies; these are detailed in ISO 8207. This document applies neither to thermoplastics hoses nor to hoses used for high pressure [>0,15 MPa (>1,5 bar)] acetylene.
备用文件名
lgli/E:\!lg\standarts1\ISO\00001-05000\ISO 03821-2019.pdf
备用文件名
nexusstc/Gas welding equipment - Rubber hoses for welding, cutting and allied processes/5227d5c51cbfe5a091cb6b12cef30e2f.pdf
备选标题
ISO 3821:2018
备用版本
5, 2022
元数据中的注释
6469051
元数据中的注释
{"edition":"5","iso_id":"iso 3821:2019","last_page":17,"publisher":"ISO","series":"ISO 3821"}
备用描述
Foreword 0
1 Scope 0
2 Normative references 0
3 Terms and definitions 0
4 Abbreviated terms 0
5 Application 0
6 Hose designation 0
7 Materials 0
7.1 Construction 0
7.1.1 Light and normal duty hoses 0
7.1.2 Flux fuel gas hose 0
7.1.3 Twin hose 0
7.2 Manufacture 0
8 Dimensions and tolerances 0
8.1 Inside diameters 0
8.2 Outside diameters 0
8.3 Wall thickness 0
8.4 Concentricity (total indicator reading) 0
8.5 Cut lengths and tolerances 0
8.6 Disclosure of inside diameter and outside diameter 0
9 Requirements and type tests 0
9.1 General 0
9.2 Basic requirements 0
9.2.1 Tensile strength and elongation at break 0
9.2.2 Accelerated ageing 0
9.2.3 Adhesion 0
9.2.4 Hydrostatic requirements 0
9.2.5 Flexibility at ambient temperature 0
9.2.6 Low-temperature flexibility 0
9.2.7 Protection against incandescent particles and hot surfaces 0
9.2.8 Ozone resistance 0
9.3 Special requirements 0
9.3.1 Non-ignition requirement for oxygen hoses 0
9.3.2 Resistance to acetone and dimethylformamide for acetylene hoses 0
9.3.3 Resistance to n-pentane for propane hoses 0
9.3.4 Resistance to azeotrope of trimethylborate with methanol for flux fuel gas hoses 0
9.3.5 Flexibility of flux fuel gas hoses 0
9.3.6 Permeability to LPG, MPS, and natural gas of methane hoses, universal fuel gas hoses, and flux fuel gas hoses 0
9.3.7 Requirements for twin hoses 0
9.3.8 Requirements for universal fuel gas hose 0
10 Hose colour and gas identification 0
10.1 General 0
10.2 Gas identification 0
10.3 Marking 0
Annex A (normative) Method of test for non-ignition 0
Annex B (normative) Method of test for resistance to n-pentane 0
Annex C (normative) Method of test for resistance to incandescent particles and hot surfaces 0
Annex D (normative) Summary of requirements and type tests 0
Annex E (normative) Alternative oxygen gas colour codes 0
Bibliography 0
开源日期
2024-04-25
更多信息……

🚀 快速下载

成为会员以支持书籍、论文等的长期保存。为了感谢您对我们的支持，您将获得高速下载权益。❤️

🐢 低速下载

由可信的合作方提供。 更多信息请参见常见问题解答。 （可能需要验证浏览器——无限次下载！）

所有选项下载的文件都相同，应该可以安全使用。即使这样，从互联网下载文件时始终要小心。例如，确保您的设备更新及时。
显示外部下载
  • 对于大文件，我们建议使用下载管理器以防止中断。
    推荐的下载管理器：Motrix
  • 您将需要一个电子书或 PDF 阅读器来打开文件，具体取决于文件格式。
    推荐的电子书阅读器：Anna的档案在线查看器、ReadEra和Calibre
  • 使用在线工具进行格式转换。
    推荐的转换工具：CloudConvert和PrintFriendly
  • 您可以将 PDF 和 EPUB 文件发送到您的 Kindle 或 Kobo 电子阅读器。
    推荐的工具：亚马逊的“发送到 Kindle”和djazz 的“发送到 Kobo/Kindle”
  • 支持作者和图书馆
    ✍️ 如果您喜欢这个并且能够负担得起，请考虑购买原版，或直接支持作者。
    📚 如果您当地的图书馆有这本书，请考虑在那里免费借阅。