A low stretch rope would have 6 to 10 elongation at 10 of the rope s mbs.
Life safety rope rating.
In 1998 the cordage institute published standard ci 1801 low stretch and static kernmantle life safety rope which defined a static rope as having a maximum 6 elongation at 10 of the rope s minimum breaking strength mbs.
The 2018 edition of nfpa 1858.
1 1 2 this standard shall specify requirements for new life.
Nfpa 1858 5 1 2 and a 5 1 2 offers guidance to help firefighters determine when each type of rope is needed.
Standard on selection care and maintenance of life safety rope and equipment for emergency services is the primary document that details rope selection and.
The committee felt that after 10 years of storage it might be worth considering replacement of a life safety rope even though the rope had not been used.
The umbrella term life safety rope encompasses technical use and general use rope yet both types have extremely high safety ratings in all critical dimensions loads falls etc.
All life safety rope must meet specific physical standards and characteristics as defined by nfpa.