<p>ISO 2503:2009 specifies requirements for single or two-stage pressure regulators without flow-metering devices for connection to gas cylinders used for</p>
<ul>
<li>compressed gases up to 300 bar (30 MPa),</li>
<li>dissolved acetylene,</li>
<li>liquefied petroleum gases (LPG),</li>
<li>methylacetylene‑propadiene mixtures (MPS), and</li>
<li>carbon dioxide (CO<sub>2</sub>)<sub>,</sub></li>
</ul>
<p>for use in welding, cutting and allied processes. It does not cover pressure regulators having a nominal outlet pressure <i>p</i><sub>2</sub> > 20 bar.</p>
<p>ISO 2503:2009 also specifies requirements for single or two-stage pressure regulators with flow-metering devices for connection to gas cylinders used for</p>
<ul>
<li>compressed gases or mixtures up to 300 bar (30 MPa), and</li>
<li>carbon dioxide (CO<sub>2</sub>),</li>
</ul>
<p>for use in welding, cutting and allied processes. Typical processes using this equipment are: tungsten inert-gas arc welding (TIG), metal-arc inert-gas welding (MIG), metal-arc active-gas welding (MAG), plasma arc welding, tubular-cored-wiretubular-cored-wire welding and plasma cutting. Annex B gives examples of flow-control systems and their flow-measuring devices.</p>
Registration number (WIID)
40644
Scope
<p>ISO 2503:2009 specifies requirements for single or two-stage pressure regulators without flow-metering devices for connection to gas cylinders used for</p>
<ul>
<li>compressed gases up to 300 bar (30 MPa),</li>
<li>dissolved acetylene,</li>
<li>liquefied petroleum gases (LPG),</li>
<li>methylacetylene‑propadiene mixtures (MPS), and</li>
<li>carbon dioxide (CO<sub>2</sub>)<sub>,</sub></li>
</ul>
<p>for use in welding, cutting and allied processes. It does not cover pressure regulators having a nominal outlet pressure <i>p</i><sub>2</sub> > 20 bar.</p>
<p>ISO 2503:2009 also specifies requirements for single or two-stage pressure regulators with flow-metering devices for connection to gas cylinders used for</p>
<ul>
<li>compressed gases or mixtures up to 300 bar (30 MPa), and</li>
<li>carbon dioxide (CO<sub>2</sub>),</li>
</ul>
<p>for use in welding, cutting and allied processes. Typical processes using this equipment are: tungsten inert-gas arc welding (TIG), metal-arc inert-gas welding (MIG), metal-arc active-gas welding (MAG), plasma arc welding, tubular-cored-wiretubular-cored-wire welding and plasma cutting. Annex B gives examples of flow-control systems and their flow-measuring devices.</p>
