WORK PLANS - Laserfiche WebLink

Home Browse Search

A=COM 4.2 Hazard Assessment 4.2.1 AECOM will identify and assess the hazards associated with work where the potential exists for employees to be exposed to laser radiation or other non-ionizing radiation sources, develop appropriate elimination and control measures, and document this in the location or project specific SH&E Plan. • If routine exposures to laser radiation or other non-ionizing radiation sources are expected, an appropriate plan, such as a Non-Ionizing Radiation Protection Plan (NIRPP)should be developed.The plan (e.g. NIRPP)may be included in the location or project specific SH&E Plan; • Consultation with subject matter experts may be necessary depending upon the extent, number, and type of non-ionizing radiation (e.g., Laser Safety Officer); • Task specific hazards and associated controls shall also be identified in the respective THA; • Refer to S3AM-209-PR1 Risk Assessment&Management. 4.2.2 In addition to the SH&E Plan, appropriate personal protective equipment will be identified and documented in the THA or other relevant hazard assessment documentation. 4.2.3 AECOM will develop and implement an appropriate NIRPP to control identified hazards where the potential to exceed the applicable Maximum Permissible Exposure(MPE)limits exist. 4.3 Laser Protection Requirements 4.3.1 Only qualified and trained employees will be assigned to install, adjust, and operate laser equipment for surveys, alignment/grade-checks,tunnel work, etc. 4.3.2 Laser equipment will bear a label to indicate maximum power output,ANSI class, and beam spread. 4.3.3 Looking into the primary beam is prohibited, and care will be taken to avoid looking at specular reflections of the beam, including those from lens surface work. 4.3.4 Where direct or reflected laser light greater than 0.005 watts(5 milliwatts)for>_ '/4 second exists, employees will be provided with laser safety goggles that will protect them for the specific wavelength of the laser and be of an optical density(OD)adequate for the energy involved.The laser safety goggles will be selected in accordance with the requirements of ANSI Z136.1-2014 (or the most current edition). 4.3.5 Operation of an ANSI Class 313 or 4 laser should be assessed for exposure hazards and whether medical surveillance is appropriate. Refer to S3AM-128-PR1 Medical Screening&Surveillance. 4.3.6 Use of an ANSI Class 4 laser requires the approval of the SH&E Manager. 4.3.7 All protective goggles will bear a label identifying the following data: • The laser wavelength for which use is intended; • The optical density of that wavelength; • The visible light transmission. 4.3.8 Class 1 Lasers • Safe for the unprotected eye and through optical instruments(prescription lenses,telescopes, beam reducers, etc.); • Very low power lasers or enclosed lasers; • MPE is never exceeded, even for very long exposure(hours), or with the use of optical instruments; • Nominal Hazard Zone: none. 4.3.9 Class 1 M Lasers Non-Ionizing Radiation(S3AM-121-PR1) Revision 3 July 31,2019 PRINTED COPIES ARE UNCONTROLLED.CONTROLLED COPY IS AVAILABLE ON COMPANY INTRANET. 3 of 8