ISO 7240-12:2022
Current
The latest, up-to-date edition.
Fire detection and alarm systems Part 12: Line type smoke detectors using a transmitted optical beam
Hardcopy , PDF , PDF 3 Users , PDF 5 Users , PDF 9 Users
English
13-06-2022
Important note : Users cannot be edited or removed once added to your Multi user PDF.
This document specifies requirements, test methods and performance criteria for line-type smoke detectors for use in fire detection systems installed in buildings. The detectors consist of at least a transmitter and a receiver and can include reflector(s) for the detection of smoke by the attenuation and/or changes in attenuation of an optical beam.
This document is not applicable to:
line-type smoke detectors designed to operate with separations between opposed components of less than 1m;
line-type smoke detectors whose optical path length is defined or adjusted by an integral mechanical connection;
line-type smoke detectors with special characteristics, which cannot be assessed by the test methods in this document.
NOTE The term optical is used to describe that part of the electromagnetic spectrum produced by the transmitter to which the receiver is responsive; this is not restricted to visible wavelengths.
| DocumentType |
Standard
|
| Pages |
53
|
| PublisherName |
International Organization for Standardization
|
| Status |
Current
|
| Supersedes |
Access your standards online with a subscription
Features
-
Simple online access to standards, technical information and regulations.
-
Critical updates of standards and customisable alerts and notifications.
-
Multi-user online standards collection: secure, flexible and cost effective.