ISO-15758 › Hygrothermal performance of building equipment and industrial installations - Calculation of water vapour diffusion - Cold pipe insulation systems

ISO-15758 - 2ND EDITION - CURRENT
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ISO 15758:2014 specifies a method for calculating the density of the water vapour flow rate in cold pipe insulation systems, and the total amount of water diffused into the insulation over time. The calculation method presupposes that water vapour can only migrate into the insulation system by diffusion, with no contribution from airflow. It also assumes the use of homogeneous, isotropic insulation materials so that the water vapour partial pressure is constant at all points equidistant from the axis of the pipe.

ISO 15758:2014 is applicable when the temperature of the medium in the pipe is above 0 °C. It applies to pipes inside buildings as well as in the open air.

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To find similar documents by classification:

91.120.10 (Thermal insulation of buildings Thermal insulation in general, see 27.220 Thermal insulating materials, see 91.100.60)

91.140.01 (Installations in buildings in general)

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Document Number

ISO 15758:2014

Revision Level

2ND EDITION

Status

Current

Publication Date

May 1, 2014

Committee Number

ISO/TC 163/SC 2