Introduction

Where it is proposed to assess the classification of a product or system in lieu of carrying out a
specific test (as in paragraph B1b), this should be done in accordance with the relevant standard for
extended application for the test in question and should include details of the test evidence that
has been used to support the assessment.
For performance classifications where there is no specific standard for extended application,
assessment reports should be produced in accordance with the principles of BS EN 15725 and
should include details of the test evidence that has been used to support the assessment. Further
information on best practice is provided in the Passive Fire Protection Federation’s Guide to
Undertaking Assessments in Lieu of Fire Tests.
NOTE: Regulation 7(2) limits components used in or on the external walls of certain buildings to
materials achieving class A2-s1, d0 or class A1 (see Section 10). Assessments cannot be used to
demonstrate compliance with this requirement.