COMPLIANCE INFO_2010-2011 - Laserfiche WebLink

Home Browse Search

Appendix 1.A -Test Results - Entry Classification Chart The chart below lists the materials that must be evaluated as part of the confined/enclosed space entry procedures. Acceptable levels of these materials have been set to serve as a basic criteria in deciding which type of entry to follow.The chart contains the name of the material to be evaluated,along with the corresponding acceptable levels for each of the two types of entry, general and special. NOTE: All materials must test at or below the acceptable limits for general entry before a space can be declared safe for entry following general entry requirements. If any one material tests above the acceptable limits, special entry requirements must be followed. Enclosed Space Material or Condition General Entry- Acceptable Test Results Flammable Vapors Below 5%LFL Oxygen Greater than 19-5%oxygen Hydrogen Sulfide (H2S) 0 Parts per million (ppm) Light Hydrocarbons (gasoline-like materials) 300 ppm or less Lead Compounds Levels below 4mg per cubic foot after cleaning Other Toxic/Combustible Materials Consult with Division Compliance Specialist for requirements Confined Space Material or Condition Special Entry- Acceptable Test Results Flammable Vapors 5%to 10%LFL Oxygen Less than 19% Hydrogen Sulfide (H2S) 1 to 10 ppm Light Hydrocarbons (gasoline-like materials) Greater than 300 ppm Lead Compounds Levels above 4mg per cubic foot after cleaning Other Toxic/Combustible Materials Consult with Division Compliance Specialist for requirements Additional Entry Restrictions Material or Condition Restriction Flammable Vapors Greater than 10% LFL- NO ENTRY ALLOWED Oxygen Less than 16.1% EMERGENCY ONLY With self contained breathing apparatus (SCBA) Hydrogen Sulfide (H2S) Over 10 ppm - EMERGENCY ONLY-with (SCBA) 2/99 Page 20 of 30