2.1 The nozzles and other system components should
be supplied by the manufacturer with design and installation criteria,
operating instructions, drawings, and technical data sufficient for
the identification of the components.
2.2 Temperatures should be measured using plain
K-type thermocouple wires not exceeding 0.5 mm in diameter. The thermocouple
beads should be shielded to protect against direct water impingement.
2.3 Unless otherwise stated, the following tolerances
should apply:
| .1
|
Length
|
±
2% of value
|
| .2
|
Pressure
|
±
3% of value
|
| .3
|
Temperature
|
±
2% of value.
|
2.4 System water pressure should be measured by
using suitable equipment. Total water flow rates should be determined
by a direct measurement or indirectly by using the pressure data and
k-factor of the nozzles.
2.5 Wind velocity should be measured by using
suitable equipment.
2.6 The temperature and pressure measurements
should be made continuously, at least once in every two seconds throughout
the tests.
2.7 The tests should simulate the conditions of
an actual installed system regarding objectives such as time delays
between the activation of the system and minimum system water pressure
or water delivery. In addition, the use of a pre-primed fire suppression
enhancing additive, if applicable, should be taken into account.