ISO 25947-1:2017 pdf download – Fireworks — Categories 1, 2 and 3 — Part 1: Terminology.
3.5 bursting charge pyrotechnic composition (3.36) which is intended to burst open the firework case (3.14), in order to expel one or more pyrotechnic units (3.37), which can also transmit ignition 3.6 critical nonconforming unit nonconforming unit (3.28) with one or more critical nonconformities (3.7), with or without major (3.24) or minor nonconformities (3.26) 3.7 critical nonconformity nonconformity (3.29) that judgement and experience indicate is likely to result in hazardous or unsafe conditions Note 1 to entry: This type of nonconformity is referred to as a “class A nonconformity” in ISO 2859‑1:1999. 3.8 debris any part of the firework (3.15) which remains after the firework has ceased to function 3.9 droop angle by which the tip of a composition‑coated wire has been deflected from the horizontal, after the firework (3.15) has ceased to burn 3.10 effect charge pyrotechnic composition (3.36), other than propellant charge (3.34) or bursting charge (3.5), which, upon functioning, will burn or explode to produce a visual and/or aural effect 3.11 end closure part or crimp which is designed to seal one end of a firework case (3.14) 3.12 explosion sudden release of energy accompanied by a report with or without a flash 3.13 external support support which is not integral to the article, or which has to be fixed to the article before use by the user to provide stability Note 1 to entry: External support includes but is not limited to: burying the article in soft ground or material, fixing the article to a post or using heavy objects (e.g. sand bags). 3.14 firework? case container which is designed to retain pyrotechnic compositions (3.36) within a firework (3.15) Note 1 to entry: According to its mechanical strength, this container may intentionally (by design) influence the firework’s behaviour.
3.16 first? principal? effect principal effect (3.32) of a firework (3.15) which is the first to occur during the functioning of the firework 3.17 friction head ignition head (3.18) designed to be ignited by friction 3.18 ignition head initial fuse (3.20) consisting of pyrotechnic composition (3.36) only 3.19 initial fuse burning burning which immediately follows ignition and precedes any effect 3.20 initial fuse component of a firework (3.15) which is ignited in order to start the firework functioning 3.21 invisible burning time time between the preliminary effect (3.30) and first principal effect (3.16) 3.22 invisible burning burning occurring within the firework (3.15) which is not visible to the person who ignited the firework 3.23 major nonconforming unit nonconforming unit (3.28) with one or more major nonconformities (3.24), with or without minor nonconformities (3.26), but with no critical nonconformities (3.7) 3.24 major nonconformity nonconformity (3.29), other than a critical nonconformity (3.7), which is likely to result in failure, to reduce materially the usability of the firework (3.15), or to increase the potential hazard Note 1 to entry: This type of nonconformity is referred to as a “class B nonconformity” in ISO 2859‑1:1999. 3.25 minor nonconforming unit nonconforming unit (3.28) with one or more minor nonconformities (3.26), but with no critical (3.7) or major nonconformities (3.24)