BS 7272-2-2008 pdf free download

BS 7272-2-2008 pdf free download.Writing and marking instruments Part 2: Specification for end closures to reduce the risk of asphyxiation.
4.2 Size
An end closure shall not pass through a 16: mm diameter ring gauge of at least 19 mm thickness under its own weight.
NOTE End closures which ca,form to this slthclaILw are deemed to be too latqe to present an inluikilion ha:urrL
4.3 Security
The end closure shall not be removed when subjected to a force of 5O N appLied in line with the body of the writing or marking instrument.
NOTE End closures conJbr,n ing to this subela uw are deemed to be securely aflLred and therefore not to presenl (ifl i,mhakUioi hazued.
4.4 Inaccessibility
The end closure when in the form of a plug shall be completely recessed, and be reasonably secure by withstanding a minimum force of 10 N, when tested in accordance with Annex B, applied in line with the body of the writing or marking instrument.
NOTE End cloxu mrs confor,ii buj to this subela use air deenu’d not tim be re,mmm able and therefore not to present an anhalation hazued.
4.5 Minimal protrusion
The grippable surface of an end closure, when in the form of a plug (see Figure 1), shall not extend more than 1 mm beyond the end of the writing or marking instruinent and overall the end closure shall not extend more than 3 nun beyond the end of the writing or marking instnminent. It shall be reasonably secure by withstanding a minimum force of 10 N. when tested in accordance with Annex B, applied in Line with the body of the writing or marking instrument.
NOTE 1 In Figure 1, the .30 ‘mini,nu,n angle, 1 mm and 3 mu. ma.rimum (tin.enSwus indicate the limits of the pmtrusion. Within these then’ i.s Ut) re.strjcljon on sIU*JW other than defimwd in 11w fr.mt, e.g. hen. sphem-scal, comica ‘e, pointed are acceptable.
NOTE 2 End closures comforsmsing to this .sithcla use are deemned Hot to be yrippable and therefore not to present an inhalation hazard.BS 7272-2-2008 pdf free download.