BS ISO 7240-15:2014

Foreword
Introduction
1 Scope
2 Normative references
3 Terms, definitions, and abbreviations
4 Requirements
5 Tests
6 Test report
7 Marking
8 Data
Annex A (normative) - Compensation for detector drift
Annex B (normative) - Smoke tunnel for smoke-response
        value measurements
Annex C (normative) - Heat tunnel for heat-response value
        measurements
Annex D (normative) - Apparatus for the dazzling test
Annex E (normative) - Apparatus for the impact test
Annex F (normative) - Fire test room
Annex G (normative) - Open cellulosic (wood) fire (TF1)
Annex H (normative) - Smouldering (pyrolysis) wood fire (TF2)
Annex I (normative) - Glowing smouldering cotton fire (TF3)
Annex J (normative) - Flaming plastics (polyurethane) fire (TF4)
Annex K (normative) - Flaming liquid (n-heptane) fire (TF5)
Annex L (normative) - Low-temperature black-smoke liquid
        (decalin) fire (TF8)
Annex M (informative) - Construction of the measuring ionization
        chamber
Annex N (informative) - Construction of the heat tunnel

Defines requirements, test methods, and performance criteria for point-type fire detectors using smoke and heat sensors, incorporating in one mechanical enclosure at least one smoke sensor and at least one other sensor which responds to heat, and in which the signal(s) of the smoke sensor(s) is (are) combined with the signal(s) of the heat sensor(s).

This part of ISO7240 specifies requirements, test methods, and performance criteria for point-type fire detectors using smoke and heat sensors, incorporating in one mechanical enclosure at least one smoke sensor and at least one other sensor which responds to heat, and in which the signal(s) of the smoke sensor(s) is (are) combined with the signal(s) of the heat sensor(s).

The performance of a single sensor within the detector covered by this part of ISO7240 cannot be sufficient for conformity to other parts of ISO7240 for the single sensor detector.

Certain types of detectors can contain radioactive materials. The national requirements for radiation protection differ from country to country and they are not therefore specified in this standard. However, such detectors are expected to conform to the national requirements and be in line with the recommendations of the Nuclear Energy Agency (NEA) of the Organization for Economic Co-operation and Development (OECD)¹.

For the testing of other types of detectors, or detectors working on different principles, this part of ISO7240 can be used only for guidance. Detectors with special characteristics, developed for specific risks, are not covered in this part of ISO7240.

¹ OECD, Recommendations for ionization smoke detectors in implementation of radiation protection standards. Nuclear Energy Agency, Organisation for economic Co-operation and Development, Paris, France