BSI 16/30333435 DC:2016 Edition
$13.70
BS EN ISO 3821. Gas welding equipment. Rubber hoses for welding, cutting and allied processes
| Published By | Publication Date | Number of Pages |
| BSI | 2016 | 26 |
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 7 | Foreword |
| 9 | 1 Scope 2 Normative references |
| 10 | 3 Terms and definitions 4 Abbreviated terms 5 Application 6 Hose designation |
| 11 | 7 Materials 7.1 Construction 7.1.1 Light and normal duty hoses 7.1.2 Flux fuel gas hose 7.1.3 Twin hose 7.2 Manufacture 8 Dimensions and tolerances 8.1 Inside diameter 8.2 Concentricity (total indicator reading) |
| 12 | 8.3 Cut lengths and tolerances 9 Requirements and type tests 9.1 General 9.2 Basic requirements 9.2.1 Tensile strength and elongation at break |
| 13 | 9.2.2 Accelerating ageing 9.2.3 Adhesion 9.2.4 Hydrostatic requirements 9.2.5 Flexibility at ambient temperature 9.2.6 Low-temperature flexibility 9.2.7 Protection against incandescent particles and hot surfaces 9.2.8 Ozone resistance |
| 14 | 9.3 Special requirements 9.3.1 Non-ignition requirement for oxygen hoses 9.3.2 Resistance to acetone and dimethylformamide for acetylene hoses 9.3.3 Resistance to n-pentane 9.3.4 Resistance to azeotrope of trimethylborate with methanol for flux fuel gas hoses |
| 15 | 9.3.5 Flexibility of flux fuel gas hoses 9.3.6 Permeability to LPG, MPS, and natural gas of methane hoses, universal fuel gas hoses, and flux fuel gas hoses 9.3.7 Requirements for twin hoses 9.3.8 Requirements for universal fuel gas hose 10 Hose colour and gas identification 10.1 General 10.2 Gas identification |
| 16 | 10.3 Marking |
| 17 | Annex A (normative) Method of test for non-ignition |
| 19 | Annex B (normative) Method of test for resistance to acetone and dimethylformamid (DMF) |
| 20 | Annex C (normative) Method of test for resistance to n-pentane |
| 21 | Annex D (normative) Method of test for resistance to incandescent particles and hot surfaces |
| 23 | Annex E (normative) Summary of requirements and type tests |
| 24 | Annex F (normative) Alternative oxygen gas colour codes |
| 25 | Bibliography |
