Industrial Hygiene
Noise Monitoring and Air Monitoring Sampling,
Respirator Qualitative Fit Testing

 

 

”Instant Reading” Air Sampling

Detector tube air sampling is a quick way to determine the amount of a chemical in a work area.  A Sensidyne Gas Detection Pump with the correct Sensidyne Detector Tube can be used to detect a number of chemicals.  These tubes can be used to get a snapshot of the air contaminants in a work area.  One tube is used for each potential chemical contaminant in the air.

The Sensidyne colormetric detector tubes can used to determine concentrations of the known air contaminants.  A color change in the detector tube is indicated.  The length of the stain is used to get a concentration by comparing it to a scale which is etched on the tube. 

This method is quick evaluation for screening the amount of chemical in the air.  It is typically used to measure worst case scenarios to determine if additional sampling is necessary.  To obtain an OSHA shift long chemical exposure assessment, air monitoring with a pump would be a better solution.

Here is a list a few of the chemicals that we can sample with a detector tube.

Chemical                      Measuring Range             TLV/TWA*

Ammonia                      5 – 260 ppm **                25 ppm

Carbon Monoxide        1 – 50 ppm                       25 ppm

Chlorine                       0.1 – 10 ppm                      0.5 ppm

Hydrogen Sulfide          1 – 60 ppm                       10 ppm

LP Gas                         50 – 1,000 ppm           1,000 ppm

Methylene Chloride      10 – 1,000 ppm               50 ppm

Nitrogen Dioxide          0.5 – 30 ppm                      3 ppm

The cost for sampling with this method for up to 10 samples per chemical is approximately $900 with an e-mailed air monitoring report.  Travel outside of the Phoenix area is extra.

The accuracy of detector tubes generally is considered to be +/-25% of the reading. This is based on the criteria for certification of detector tubes as originally defined by the National Institute for Occupational Safety and Health (NIOSH).

*  Threshold Limit Value/ Time Weighted Average

** parts per million

                                  

OSHA Employee Air Monitoring Sampling

After reviewing the Material Safety Data Sheets for the products used in a work area, we will assist in determining the chemicals that should be sampled.  Sampling pumps drawing air past the sampling media are used to measure the specific amount of chemical in the air.  The air in the employees breathing zone (6” – 9” from the mouth/nose) is drawn past the sampling media at a predetermined Liters per minute flow rate.  The contaminant is left on the sampling media to be measured in the laboratory.  The ‘up to all shift’ sampling gathers the chemical on the sampling media so that it can be analyzed in the laboratory.  All test results from the laboratory meet the quality control requirements of AIHA and NELAC.

The results of the samples will be compared within the safe levels for the chemicals in OSHA’s 29 CFR 1910.1000 TABLE Z-1, Limits for Air Contaminants.  It gives you the information on your company’s levels vs. the OSHA maximum permissible exposure limit.  If your work area is over the exposure limit we can assist with area recommendations or respirator recommendations.

Some examples of substances we monitor for:

Acetone

Arsenic (Inorganic)

Beryllium

Cadmium

Lead

Methyl Ethyl Ketone

Silica

Zinc

The cost for air sampling for up to 5, eight hour samples per chemical (all in one day) is approximately $2,800 with an e-mailed air sampling report.  We sample for a limited number of chemicals, so please let us know what sampling you are interested in.  Travel outside of the Phoenix area is extra.

                          

Noise Monitoring   

Noise monitoring can be done to determine if an area is over the OSHA limits for sound.  We will sample employees and or areas for the work shift.

The cost for noise monitoring for up to five, eight hour noise samples (in one day) is approximately $2,800 with an e-mailed noise monitoring report.  Travel outside of Phoenix extra.

The OSHA Hearing Conservation Program

29 CFR, 1910.95(c)(1)

The employer shall administer a continuing, effective hearing conservation program, as described in paragraphs (c) through (o) of this section, whenever employee noise exposures equal or exceed an 8-hour time-weighted average sound level (TWA) of 85 decibels measured on the A scale (slow response) or, equivalently, a dose of fifty percent. For purposes of the hearing conservation program, employee noise exposures shall be computed in accordance with Appendix A and Table G-16a, and without regard to any attenuation provided by the use of personal protective equipment.

Some examples of what loud areas dBA levels sound like:

Threshold of Hearing 0   dBA
Whisper 30 dBA
Quiet Room  45 dBA
Conversation  55 dBA
Car Driving Nearby 65 dBA
Busy Traffic Area 75 dBA
Alarm Clock 85 dBA
Lawnmower 95 dBA
Pneumatic Drill 105 dBA
Rock Concert 115 dBA
Chain Saw 125 dBA
Airplane at Takeoff 140 dBA

     

                         

Respirator Two Hour Training, with Qualitative Fit Test

If an area is determined to require a full or half face respirator, this course plus the fit test are required.  Employees with beards or facial hair that interferes with the respirators seal to the face can not be tested.  Employees will need to be medically qualified before the fit test.  The Qualitative Fit test we use is the ‘irritant smoke’ test to check for leaks and fit. 

By using the Qualitative Fit test with a full face respirator – the air contaminants PEL (permissible exposure level) is raised by a protection factor of 10.

Example, if you are using Sulfuric Acid the OSHA PEL TWA is 1 mg/m3.  Ten times 1 mg/m3 is 10 mg/m3.  With the full face respirator and correct cartridges, it would be within the PEL to work with the Sulfuric Acid at a ‘worst case’ sampling level of less than 10 mg/m3

The other factor to consider when using cartridge respirators is the IDLH level.  (Immediately Dangerous to Life and Health).  The IDLH level for Sulfuric Acid is 15 mg/m3.  It is critical not to wear a cartridge respirator an area that could reach an IDLH condition.

Respirator training includes:

  • General requirements of the Respiratory Protection standard.
  • When and where respirators are required in your facility.
  • How improper fit, usage, or maintenance can compromise the protective effect of the respirator.
  • Maintenance and storage procedures.
  • The procedure for using required respiratory equipment
  • How to use the respirator effectively in emergency situations, including situations in which the respirator malfunctions.
  • How to inspect, put on and remove, use, and check the seals of the respirator.
  • Recognizing medical signs and symptoms that may limit or prevent the effective use of respirators.

Pricing: $ 1,200, up to 12 attendees.  Travel outside of the Phoenix area is extra.

 

                                                            

Contact Information

Please contact Ken Mushet at SHE Solutions to schedule noise monitoring, air sampling, or respirator fit testing/ training.  Thank you for considering SHE Solutions.

SHE Solutions, LLC
Safety, Health, and Environmental - Training, Audits, & Compliance
Ken Mushet, CSP, REM - President/ Principal Consultant
Mailing Address:  581 W. Locust Dr. Chandler, AZ 85248
Office (480) 883-7218 - Fax (866) 744-5325
www.shesolutions.com kmushet@shesolutions.com

SHE Solutions, LLC  © 2003 - 2008