BS 8663-1-2019 Fixed fire protection systems – Components for watermist systems Part 1: Specification and test methods for watermist nozzles.
This British Standard specifees requirements and gives test methods for (he construction and performance uf open and autoniatic watermist nozzles br use in watermist systems t-omilormimig to BS 8458 or uS 8489-1.
This British Standard does not cover the electrical actuation olwatermmst nozzles.
NOTE I Electrical oauation of watermist nozzles is covered in BS 72 73-3 and BS 7273-5.
NOTE 2 All pressure data in this standard ore given as gauge pressures in bar’.
2 Normative references
The following documents are referred to in the text in such a way that sonic or all ol their content constitutes provisions of this For dated references, only the cditiuii cited applies. For undated references, the latest editiomi of the referenced document (including any amendments) applies.
BS 8458. Fixed fire pro frction systems — Residential and domestic wutermist system — rode of pru lice for design and instuilu lion
115 8489-1, Fixed fire protection systems — Industrial and commercial Wutermist systems — Purl I: Code of practice for design and instullu lion
115 EN 12259-1. Fixed Jirefighting systems — Components for sprinkler und water spray systems — Purl I Spnnklers
uS EN 607 51. Industrial platinum resistance thermometers and plutinum temperature sensors HS EN ISO 2213-1, Pipe threads whr pressure -C ight joints are not made on the threads — Part 1: Dimenswns, tokrunces and designation
ISO 7-1. Pipe threads where pressure-tight joints ure mude on the threads — Port 1: L),mensions, tolerances and desagnutton
3 Terms, detinitions and abbreviations
For the purposes of this British Standard, the terms, definitions and ,ihhreviatmons in BS EN 12259-1 and the following apply.
3.1 automatic watermist nozzle
nuzzle with a thermally sensitive sealing device which opeiis to discharge water for Iirelightiiig
3.2 coated watermist nozzle
waterniist nuzzle with a coating, applied for the purpose of reducing the eflecis of corrosive environments, excluding decorative paint or painted lmnishes.BS 8663-1 pdf download.