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ISO TR 10295-3 1st Edition, August 1, 2012 Fire tests for building elements and components - Fire testing of service installations - Part 3: Single component penetration seals - Guidance on the construction and use of test configurations and simulated services to characterise sealing materials
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Availability date: 07/13/2021
Description / Abstract:
This part of ISO 10295 provides guidance in respect of a
structured method of characterizing the penetrating seal under test
utilizing a series of defined parameters, each one being determined
by the use of a selected series of test configurations in
conjunction with simulated services. The level of characterization
being sought is dependent upon the classification requirement of
the system, which in turn determines the complexity of the test
program. It is also intended the test method addresses the
influence the supporting construction has on the performance of the
seal system.
The methods described apply to the determination of data
relating to single component penetration seals where the
penetration service does not melt out within the appropriate period
of exposure to a fully developed fire.
The selection of the appropriate system depends upon many
factors. Of particular importance is the size of the penetration,
since penetration seal systems are frequently penetration size (or
size range) specific.
This is a guidance document, its purpose being to determine the
critical parameters relating to the performance of the seal being
evaluated. Such parameters can then be used as a basis for
interpolation and/or extrapolation of the seal's performance. The
procedures used have been developed utilizing small square
penetrations, single component penetration seals, and cylindrical
conductors; however it is possible to generate a similar series of
tests using rectangular cross-section conductors if this is more
appropriate to end use.
This part of ISO 10295 provides a structured approach designed
to establish
— the mode of failure;
— the parameters critical to the performance of the penetration
seal under test.
The mode of failure and critical parameters are ascertained
using test configurations appropriate to the potential performance
of the product, in conjunction with clearly defined standard
penetrations.
The results gained from the application of this technical report
are designed to assist a suitably qualified person to develop a
direct and extended field of application for the penetration seal
under test using in particular, the principles and methodology
given in ISO/TR 12470. Using the field(s) of application so
generated, it should be possible to classify the penetration seal,
thus facilitating its incorporation into specifications.
The test configurations recommended in this part of ISO 10295
are not appropriate for evaluating multicomponent penetration
seals.
This part of ISO 10295 is not appropriate for characterizing all
types of penetration seals, e.g. pipe closers/collars and some
gland systems, for which evaluation using ISO 10295-1 is more
appropriate.
This part of ISO 10295 does not address the distance required
between services that can generate their own heat. When a live
service is being evaluated, it is necessary to give consideration
to the distance required between penetrations.