Machinery Safety 101

Do-It-Yourself Safety Labels, Signs and Tags

Safety label on a roller conveyor
This entry is part 1 of 5 in the series Hier­archy of Con­trols

One of the great chal­lenges that all product design­ers face is the sourcing of appro­pri­ate product safety labels. There are many sources for off-the-shelf labels includ­ing some of the biggest…

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Hockey Teams and Risk Reduction or What Makes Roberto Luongo = PPE

Canucks Hockey Flag
This entry is part 2 of 5 in the series Hier­archy of Con­trols

Spe­cial Co-Author, Tom Doyle Last week we saw the Boston Bru­ins earn the Stan­ley Cup. I was root­ing for the green, blue and white, and the ruin of my voice on…

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The Third Level of the Hierarchy: Information for Use

This entry is part 3 of 5 in the series Hier­archy of Con­trols

I’ve writ­ten about the Hier­archy of Con­trols in past posts, but I’ve focused on the ‘engin­eer­ing’ side of the con­trol equa­tion: Phys­ic­al changes to machine design to elim­in­ate haz­ards, and…

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Understanding the Hierarchy of Controls

The Hierarchy of Controls illustrated as an inverted triangle with each level of the hierarchy written one above the other, starting with Inherently Sfe design, then Engineering Controls, then Information for Use, then Administrative Controls and finally descending to PPE at the bottom. An arrow with the text "Effectiveness" on it runs parallel to the triangle and points downward from Inherently safe design to PPE.
This entry is part 4 of 5 in the series Hier­archy of Con­trols

(Eds. note: This art­icle was ori­gin­ally writ­ten in 2011 and was updated in Nov. 2018.) The “Hier­archy of Con­trols” is one approach to risk reduc­tion that has become entrenched in…

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Force and injury — How hard is too hard? ISO/TR 21260 will help

ISO/TS 15066 body model
This entry is part 5 of 5 in the series Hier­archy of Con­trols

Force rep­res­ents the mech­an­ic­al energy that causes injury to the human body. ISO/TC 199 has been work­ing on answer­ing that ques­tion since 2012.

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