This standard specifies terms and definitions, general requirements, requirements and test methods, test rules and mark of smoke detectors-line detectors using an optical light beam.
This standard is applicable to the smoke detectors-line detectors using an optical light beam that are installed and used for general industry and civil building and detect the smoke with the dimmer principle with 1m~100m optical path length between the opposed components and no larger than 10m minimum optical path length as well as the same with detecting thermal perturbation function. The smoke detectors-line detectors using an optical light beam with special requirements installed in other environment shall comply with this standard except the special requirements specified by the relevant standards.
2 Normative References
The following documents contain provisions which, through reference in this text, constitute provisions of this code. For dated reference, subsequent amendments (excluding amending error in the text) to, or revisions of, any of these publications do not be applied. However, the parties whose enter into agreement according to these specifications are encouraged to research whether the latest editions of these references are applied or not. For undated references, the latest edition of the normative document is applicable to this national standard.
