<p>ISO 23550:2004 specifies safety, constructional and performance requirements and testing of safety control or regulating devices and sub-assemblies or fittings (hereafter referred to as controls) for burners and gas-burning appliances using fuel gases as natural gas, manufactured gas or liquefied petroleum gas (LPG). It is not applicable to corrosive and waste gases.</p>
<p>ISO 23550:2004 is applicable to the following controls:</p>
<p>-- automatic shut-off valves;</p>
<p>-- burner controls;</p>
<p>-- flame supervision devices;</p>
<p>-- gas/air ratio controls;</p>
<p>-- pressure governors;</p>
<p>-- manual taps;</p>
<p>-- mechanical thermostats;</p>
<p>-- multifunctional controls;</p>
<p>-- pressure-sensing devices;</p>
<p>-- valve-proving systems;</p>
<p>-- zero governors.</p>
<p>The methods of test given in ISO 23550:2004 are intended for product type testing. Tests intended for production testing are not specifically included.</p>
<p>ISO 23550:2004 is intended to be used in conjunction with the specific control standards of the ISO 23551 series.</p>
Registration number (WIID)
36890
Scope
<p>ISO 23550:2004 specifies safety, constructional and performance requirements and testing of safety control or regulating devices and sub-assemblies or fittings (hereafter referred to as controls) for burners and gas-burning appliances using fuel gases as natural gas, manufactured gas or liquefied petroleum gas (LPG). It is not applicable to corrosive and waste gases.</p>
<p>ISO 23550:2004 is applicable to the following controls:</p>
<p>-- automatic shut-off valves;</p>
<p>-- burner controls;</p>
<p>-- flame supervision devices;</p>
<p>-- gas/air ratio controls;</p>
<p>-- pressure governors;</p>
<p>-- manual taps;</p>
<p>-- mechanical thermostats;</p>
<p>-- multifunctional controls;</p>
<p>-- pressure-sensing devices;</p>
<p>-- valve-proving systems;</p>
<p>-- zero governors.</p>
<p>The methods of test given in ISO 23550:2004 are intended for product type testing. Tests intended for production testing are not specifically included.</p>
<p>ISO 23550:2004 is intended to be used in conjunction with the specific control standards of the ISO 23551 series.</p>
