In reply to cuppatea:
> (In reply to Monk)
> [...]
> I had a bunch of my older and most battered slings tested a while ago, and while some had lost a lot of strength, none of them failed below 11kN (and those were heavily used 18 year-old nylon slings).
I sent my 10 year old pretty well used but well looked after, quickdraw slings
(slings rated at 22Kn when new - but probably well above that) to Matt Fuller who was
doing some research for Masters at Leeds(i think) and he bust them all for me, here's a bit of his report
"Five Dyneema quickdraw dogbones. Mean peak load: 19.67 kN. Lowest individual peak
load: 18.57 kN. Mean work to rupture: 173.06 J. Lowest individual work to rupture: 153.65 J."
I am pretty confident these days about older slings in good nick but well used.