<P>This part of ISO 834 specifies the procedures to be followed for determining the fire resistance of beams, when</P>
<P>tested on their own.</P>
<P>Beams are normally tested with their underside and two vertical sides fully exposed to heating. However, when the</P>
<P>exposure is from four sides or less than three sides, appropriate exposure conditions are necessary. Beams which</P>
<P>are part of a floor construction are tested with the floor construction as described in ISO 834-5 and are subject to</P>
<P>evaluation of integrity and insulation.</P>
<P>The application of this test to other untested forms of construction is acceptable when the construction complies</P>
<P>with the direct field of application as given in this part of ISO 834 or when subjected to an extended application</P>
<P>analysis in accordance with ISO/TR 12470. Since ISO/TR 12470 gives only general guidelines, specific extended</P>
<P>application analyses are to be performed only by persons expert in fire-resistant constructions.</P>
<P>General guidance on this test method is given in annex A.</P>
Registration number (WIID)
30320
Scope
<P>This part of ISO 834 specifies the procedures to be followed for determining the fire resistance of beams, when</P>
<P>tested on their own.</P>
<P>Beams are normally tested with their underside and two vertical sides fully exposed to heating. However, when the</P>
<P>exposure is from four sides or less than three sides, appropriate exposure conditions are necessary. Beams which</P>
<P>are part of a floor construction are tested with the floor construction as described in ISO 834-5 and are subject to</P>
<P>evaluation of integrity and insulation.</P>
<P>The application of this test to other untested forms of construction is acceptable when the construction complies</P>
<P>with the direct field of application as given in this part of ISO 834 or when subjected to an extended application</P>
<P>analysis in accordance with ISO/TR 12470. Since ISO/TR 12470 gives only general guidelines, specific extended</P>
<P>application analyses are to be performed only by persons expert in fire-resistant constructions.</P>
<P>General guidance on this test method is given in annex A.</P>
