Explain the hazard directly and simply.
Many people cannot read above a 6th grade level. Avoid "
weasel words" such as "Moving head can be dangerous" or “Use guard as needed".
Avoid adverbs, such as "quickly" or "sometimes" or "carefully". Be specific, instead. Exact instructions mean a safer environment.
Flush left text is more legible, especially for longer messages.
A pictogram symbol conveys, at a glance to even those that do not
read English well, the particular danger or the avoidance procedure.
Professional pictograms show that the hazard is serious.
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