BS DD252(2002) : 2002

Foreword
1 Scope
2 Normative references
3 Terms, definitions and abbreviations
4 Construction and performance
5 Marking
6 Instruction charts
7 Conditions for testing and type approval testing
8 Evaluation of conformity
Annex A (normative) Test to determine operating temperatures of
        fusible link sprinklers and glass bulb sprinklers
Annex B (normative) Water flow test
Annex C (normative) Water distribution tests
Annex D (normative) Functional tests
Annex E (normative) Strength of sprinkler body and deflector
        tests
Annex F (normative) Strength of release elements tests
Annex G (informative) Notes on strength test for fusible link
        release elements
Annex H (normative) Leak resistance test
Annex I (normative) Heat exposure
Annex J (normative) Glass bulk sprinkler thermal shock
Annex K (normative) Corrosion tests
Annex L (normative) Sprinkler coatings low temperature test
Annex M (normative) Water hammer test
Annex N (normative) Thermal response tests
Annex O (normative) Heat-resistance test
Annex P (normative) Vibration test
Annex Q (normative) Impact test
Annex R (normative) Resistance to low temperatures test
Annex S (normative) Fire tests
Annex T (normative) Conditions for tests schedule for type
        approval testing
Bibliography

Gives requirements for the construction and performance of sprinklers which are operated by a change of state of an element or bursting of a glass build under the influence of heat, for use in residential and domestic automatic sprinkler systems conforming to DD 251.