Hazard Identification — Engineered Nanoparticles

Under­stand­ing the haz­ards pre­sent­ed by process­es is crit­i­cal to pro­tect­ing work­ers. Nanopar­ti­cles are enter­ing the work­place in new prod­ucts and process­es, but the haz­ards are not well under­stood. Read this arti­cle to learn more.

Iden­ti­fy­ing haz­ards is the first step in the risk assess­ment process, but to do this effec­tive­ly the haz­ards must be under­stood. Engi­neered nanopar­ti­cles, like car­bon nan­otubes, are begin­ning to show up in a wide vari­ety of prod­ucts. The prob­lem is that their haz­ards are not well under­stood.

Check out this arti­cle from IHSN mag­a­zine on this sub­ject

Interlocked gate testing

Did you know that inter­locked gates require stop­ping per­for­mance test­ing?

Machin­ery needs to be able to stop in the time it takes a per­son to open the guard and reach the haz­ard. If the dis­tance from the guard open­ing to the haz­ard is short enough that a per­son can reach the dan­ger point before the haz­ard can be con­trolled, the guard is use­less. The result­ing sit­u­a­tion may be worse

Did you know that inter­locked gates require stop­ping per­for­mance test­ing?

Machin­ery needs to be able to stop in the time it takes a per­son to open the guard and reach the haz­ard. If the dis­tance from the guard open­ing to the haz­ard is short enough that a per­son can reach the dan­ger point before the haz­ard can be con­trolled, the guard is use­less. The result­ing sit­u­a­tion may be worse than not hav­ing a guard because it’s pres­ence leads to a false sense of secu­ri­ty in users.

Test the stop­ping time of guard­ed haz­ards and make sure that guards are far enough away from the dan­ger zone to be effec­tive. For more on stop­ping per­for­mance require­ments, see CSA Z434, EN 999 (soon to be replaced by EN 13855:2010), and in the USA, 29 CFR 1910.217(h)(9)(v).

Down­load ISO Stan­dards
Down­load IEC stan­dards, Inter­na­tion­al Elec­trotech­ni­cal Com­mis­sion stan­dards.
Down­load BSI Stan­dards (British Stan­dards Insti­tu­tion)
Down­load ANSI stan­dards

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