Dow's Chemical Exposure Index Guide

The AMERICAN INSTITUTE OF CHEMICAL ENGINEERS (AIChE) is a distinguished professional association that strives to provide leadership in the advancing chemical engineering profession. The Equipment Testing Procedures Committee is composed of engineers with substantial experience in the design and operation of process plants, as well as in solving problems that can arise with the equipment used in these plants.

Preface. Introduction.

Procedure for Chemical Exposure Index Calculations.

Scenarios for Estimation of Airborne Release Rates.

Emergency Response Planning Guidelines (ERPG) and Dow Emergency Exposure Planning Guideline (EEPG).

Guidelines for Estimating the Amount of Material Becoming Airborne following a Release.

Estimating the Airborne Quantity for Gas Releases.

Estimating Airborne Quantity for Liquid Releases.

CEI and Hazard Distance Calculation.

Chemical Exposure Index Summary Form.

Figures.

Figure 1. Procedure for Calculation of Chemical Exposure Index (CEI).

Figure 2. Flowchart for Calculating the Airborne Quantity.

Figure 3A. CEI vs. Airborne Quantity (SI Units).

Figure 3B. CEI vs. Airborne Quantity (US/Brit Units).

Tables.

Table 1. Emergency Response Planning Guidelines: ERPGs/EEPGs.

Table 2A. Physical Property Table for CEI (SI Units).

Table 2B. Physical Property Table for CEI (US/Brit Units).

Appendices.

Appendix 1. Chemical Exposure Index Review Process.

Appendix 2. Containment and Mitigation Checklist.

Appendix 3. Example CEI Calculations (4 examples).

Appendix 4. Chemical Exposure Index for Selected Chemicals for Releases.

for releases from a 2-inch Diameter Hole.