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Re: [TCML] If He Starts Nodding Off, Try Another Million Volts

Thanks, Jim. That is a major help. I think we will use some blowers that give a narrow stream. 

---Carl
-----Original Message----- From: Jim Lux 
Sent: Sunday, October 07, 2012 4:32 PM
To: Tesla Coil Mailing List
Subject: Re: [TCML] If He Starts Nodding Off, Try Another Million Volts

On 10/7/12 3:42 PM, Carl Noggle wrote:

Hi, Steve,

EXCELLENT show.  Keep up ther good work.

Can you give us a couple of references on O3 and NO2 levels with respect
to safety?  Has much research been done?  Thanks---

Carl





Generally, one wants to stay below the OSHA or ACGIH limits (cut and
pasted below)..   A performer can claim they want to have higher
concentrations and "take the risk", but the production company is then
leaving itself open to problems later on.  This is particularly a
problem with ancillary personnel (crew and such, who are incidentally
exposed, but may not gain the direct benefit of the exposure that the
performer does).

The challenge (as with RF/EM exposure) is in measuring it.  The usual
scheme would be to pull samples with a Draeger sampler and tube or
similar. Maybe during rehearsals or trials to get a baseline.

That gives you a nice paper trail later on to show that you met the need.




Ozone

OSHA Permissible Exposure Limit (PEL) for General Industry: 29 CFR
1910.1000 Z-1 Table -- 0.1 ppm, 0.2 mg/m3 TWA
American Conference of Governmental Industrial Hygienists (ACGIH)
Threshold Limit Value (TLV): Heavy Work - 0.05 ppm TWA; Moderate Work -
0.08 ppm TWA; Light Work - 0.10 ppm TWA; Heavy, Moderate, or light
workloads (≤ 2 hrs) - 0.20 TWA; Appendix A4 - Not Classifiable as a
Human Carcinogen

National Institute for Occupational Safety and Health (NIOSH)
Recommended Exposure Limit (REL): 0.1 ppm, 0.2 mg/m3 Ceiling


NO2
OSHA Permissible Exposure Limit (PEL) for General Industry: 29 CFR
1910.1000 Z-1 Table -- 5 ppm, 9 mg/m3 Ceiling
American Conference of Governmental Industrial Hygienists (ACGIH)
Threshold Limit Value (TLV): 3 ppm, 5.6 mg/m3 TWA; 5 ppm, 9.4 mg/m3
STEL; Appendix A4 - Not Classifiable as a Human Carcinogen

National Institute for Occupational Safety and Health (NIOSH)
Recommended Exposure Limit (REL): 1 ppm, 1.8 mg/m3 STEL

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