Safety in numbers | Archive Titles

Comparison of AECP 1054 recommendations
	1979 air change rate	1989 air change rate
Change rooms	4–5	4–5
Normal clean air corridors	5	1–2
Normal inactive rooms	5	1–2
Controlled areas of low potential hazard	5	2
Controlled areas of high potential hazard	10	5–10
Maintenance areas of primary containment of low-risk process plants	5–10	1–5
Maintenance areas of primary containment of high-risk process plants	30	10
Primary containments (glove box, cell or cave)	2–30 dependent on process and hazards	2–30 dependent on process and hazards