Date: Sat, 4 Dec 2010 18:52:46 -0500
Reply-To: DCHAS-L Discussion List <DCHAS-L**At_Symbol_Here**LIST.UVM.EDU>
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From: "Wright, Mike" <mwright**At_Symbol_Here**USW.ORG>
Subject: Re: OHSA/NIOSH Permissible limits
In-Reply-To: A<140b67.1bd19707.3a2bb072**At_Symbol_Here**cs.com>
In answer to your question, there
is an
OSHA standard, called “Hazard Communication,” that requires
chemical labeling and accessible safety data sheets, including ACGIH
TLVs. (OSHA
has proposed to strengthen by adopting a stricter and more
comprehensible global
system in use in
Art students are not employees so they are not covered by the standard. But since there are employees who work in the school – janitors, technicians, even the faculty itself – the labels and data sheets should be available.
I was involved in a similar situation some time ago. I reminded the school that there is a very active tort bar, and that if a student was injured by a material that the school knew was dangerous, and the school had withheld the information, they were looking at millions in legal fees and damages, not to mention losing accreditation. At that point they seemed to rediscover their conscience, and put a pretty good program in place.
Mike Wright
Michael J. Wright
Director of Health, Safety and Environment
United Steelworkers
(412) 562-2580 work
(412) 370-0105 cell
(412) 562-2584 fax
mwright**At_Symbol_Here**usw.org
From:
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Sent: Saturday, December
04, 2010
9:56 AM
To:
DCHAS-L**At_Symbol_Here**LIST.UVM.EDU
Subject: Re: [DCHAS-L]
OHSA/NIOSH
Permissible limits
Chris, That's a good short list. But I'm such an idealist, I hope that on occasion a student asks: "If the TLVs are based only on health factors, what other factors are being used by OSHA to set PELs?"
And if those other factors are economic and feasibility factors, are
The same type of problem occurs in universities when faculty doesn't fully inform and train their students.
I recently visited a school that will remain nameless. The EH&S people are planning to finally start hazard communication training program in the art department after an incident--the usual reason they call me. The EH&S people, as usual, were not very familiar with conditions in art and suitably shocked when they saw them. But it was the comments of the art faculty that that email is about. They told the EH&S people that they must not train the students about the hazards or they might lose enrollment.
So in schools, I guess we can add "keeping your enrollment high so your job is secure" as yet another factor that should be considered in setting exposure levels and providing training.
Monona
In a message dated 12/4/2010 4:44:08 AM Eastern Standard Time,
cekohler**At_Symbol_Here**INDIANA.EDU writes:
Here is a nice little summary I use in class. For worker safety it
always
better to use the lower thresholds but the OSHA thresholds are the
legally
enforceable ones.
Chris
OSHA (or state established) exposure limits are law:
PEL = Permissible Exposure Limits (29 CFR 1910.1000)
•Based on health factors, economic and technical feasibility.
•TWA = 8 hour time weighted average
•STEL = 15 minute Short Term Exposure Limit
•C = Ceiling Concentration must never be exceeded.
Other exposure limits are guidelines or BMPs:
NIOSH - National Institute for Occupational Safety and Health
•Based on chemical, medical, biological, engineering, trade and other information.
•REL = Recommended Exposure Limits (10 hr TWA, used for recommending new exposure limits to OSHA)
•IDLH = Immediately Dangerous to Life and Health (based on 30 min. exposure but must exit)
ACGIH = American Conference of Governmental Industrial Hygienists
•Based on health factors only.
•TLV = Threshold Limit Value (8 hour TLV-TWA, TLV-STEL, TLV-C, they also establish “Excursion Limits” commonly used in emergency response activities = 3 to 5 x TLV for 30 min.)
•BEI = Biological Exposure Indices (mg/l of body fluid to be used in biological monitoring)
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