Standard Guide for Extension of Data for Fire-Resistive Joint System Tests Conducted in Accordance with ASTM E1966

Importancia y uso:

4.1 The methods and procedures set forth in this guide relate to the extension of the fire test results to fire-resistive joint systems that have not been tested.

4.2 Users of this guide should have knowledge and understanding of the provisions of Test Methods E119 and Test Method E1966 including those pertaining to conditions of acceptance.

4.3 In order to apply some of the principles described in this guide, reference to the original fire test report will be necessary.

4.4 In Test Method E1966, the specimens are subjected to specific laboratory fire test exposure conditions. Differences between the tested assembly and the as-built assembly impact the fire-test-response characteristics. Substitution of different test conditions also impacts the fire-test-response characteristics.

4.5 The extension of data is valid only for the standard time-temperature curve fire test exposure described in Test Method E1966.

4.6 This guide should not be used to extrapolate the fire resistance rating to a greater value.

4.7 Limitations: 

4.7.1 The extension of fire-resistance data is valid only for changes to the tested specimen that fall within normal and reasonable limits of standard construction practices.

4.7.2 Conclusions derived from using this guide are valid only if the identified change is the only change in the construction or properties of the components.

4.7.3 Evaluation of changes to the fire resistance rated assembly in which the joint system is installed is governed by the Extension of Data principles in Practice E2032.

4.7.4 Evaluation of changes to the fire-resistive joint assembly in movement type, magnitude or direction of cycling movements are not governed by this guide.

4.8 The statements in this guide are based on a single change to a tested condition.

Note 2: It is possible that multiple changes have a different cumulative effect than that of individual changes evaluated separately. The principles contained herein may provide useful information for the application of sound engineering principles to evaluate the effect of multiple differences between tested and installed fire-resistive joint systems.

4.9 Extensions of data using this guide should be done by individuals possessing the following minimum qualifications and attributes:

4.9.1 An understanding of the Test Method E1966 test procedure,

4.9.2 An understanding of the fire behavior of fire-resistive joint materials,

4.9.3 Knowledge of the elements of the construction to be protected, and

4.9.4 An understanding of the probable behavior of the underlying construction and the recommended fire-resistive joint system protecting it, were they to be subjected to testing in accordance with Test Method E1966.

4.10 The person performing evaluations based on tested or listed fire-resistive joint systems should be one of the following:

4.10.1 The fire-resistive joint system manufacturer’s knowledgeable and qualified technical personnel;

4.10.2 A registered professional engineer, or Fire Protection Engineer, knowledgeable in fire-resistive joint systems;

4.10.3 An independent testing agency or a listing agency; or

4.10.4 Technical personnel who have developed competence through training and experience whose knowledge includes fire-resistive joint system installation, testing requirements, and construction.

Subcomité:

E05.11

Volúmen:

04.07

Número ICS:

13.220.50 (Fire-resistance of building materials and elements), 91.080.40 (Concrete structures)

Palabras clave:

extension of data; fire resistance; fire-resistive joint systems; firestop; firestopping; joints;