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California Code of Regulations (Last Updated: August 6, 2014) |
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Title 8. Industrial Relations |
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Division 1. Department of Industrial Relations |
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Chapter 4. Division of Industrial Safety |
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Subchapter 7. General Industry Safety Orders |
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Group 16. Control of Hazardous Substances |
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Article 107. Dusts, Fumes, Mists, Vapors and Gases |
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Appendix a. - High Efficiency Particulate Air Filter Aerosol Test Protocol (Non-Mandatory) |
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(a) Materials and apparatus (1) Aerosol generator producing a non-hazardous oil aerosol (generated either hot or cold) of particles with a mass median diameter of less than 0.8 micrometers. (2) Oil suitable for use in the aerosol generator when used in accordance with the generator manufacturer's instructions. Note 1. Suitable oil has the following properties: white mineral oil with density of 0.869 kg/L at 15 ° C; pour point -25 ° C; flash point, closed cup 144 ° C; kinematic viscosity 14.3 centistokes at 40 ° C and 3.10 centistokes at 100 ° C with 99% unsulphonated residue. Note 2. Dioctylphthalate (DOP) may be used in controlled conditions where operator exposure is limited and complies with the requirements of Section 5155. (3) Photometer having a threshold sensitivity specific to the test aerosol of 0.0001 m g/L t o 120 m g/L. (b) Procedure (1) Operate the cabinet and introduce the aerosol challenge to the clean side of the filter and seals being tested. Ensure that the volume of aerosol produced is sufficient to give a challenge concentration of between 50 m g/L and 100 m g/L when the area of the filter under test and the manufacturers' volumetric flow rate are accounted for. Ensure that the challenge is uniformlydistributed over the filter face. (2) Adjust the photometer to give a reading of 100 X when sampling this concentration. (3) Using a sampling probe attached to the photometer, scan all filter faces, seals and construction joints with the probe held within 25mm of the surface and move at not more than 30 mm/s. |
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HISTORY 1. New Appendix A filed 10-11-94; operative 11-10-94 (Register 94, No. 41). |