MDI Emissions Reporting Guidelines for the ... - Polyurethanes

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Note to Readers: MDI Emissions Reporting Guidelines for the Polyurethanes Industry This document reviews the requirements and offers guidance for reporting releases of certain listed chemicals of interest to members of the polyurethane industry under the provisions of Section 313 of the Emergency Planning and Community Right-to-Know Act (EPCRA). Its principal purposes are to: Assist companies in the polyurethane industry in completing the Environmental Protection Agency's (EPA) Form A or Form R, Outline suggested techniques for estimating emissions for certain chemicals in the “diisocyanates” category listing under EPCRA, specifically 4,4'-methylene diphenyl diisocyanate (MDI) and mixtures of MDI and polymeric MDI (PMDI), and Provide examples of calculating MDI/polymeric MDI emissions associated with storage tank losses, fugitive releases, and stack emissions based on applied applications. The methodologies used to estimate releases of 4,4'-methylene diphenyl diisocyanate (MDI) and mixtures of MDI and polymeric MDI (PMDI) have been developed using standard techniques, but may not be suitable for estimating releases of other chemicals. The information provided in this document is offered in good faith and believed to be reliable, but is made WITHOUT WARRANTY, EXPRESS OR IMPLIED, AS TO MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR ANY OTHER MATTER. This document is not intended to provide emissions data for any particular product or process. Scenarios that have been selected are believed to be representative of situations where releases may occur. Other scenarios not reflected in this document may involve releases as well. It is the responsibility of all manufacturers, processors or users of any listed chemical to know and understand the reporting obligations, and to provide accurate information, in accordance with the provisions of the law. Consult your own legal and technical advisors for specific advice applicable to your own facility. Copyright © 2012 Center for the Polyurethanes Industry i
MDI Emissions Reporting Guidelines for the Polyurethanes Industry TABLE OF CONTENTS INTRODUCTION AND BACKGROUND .................................................................... 1-1 Use of TRI Database .............................................................................. 1-2 EPCRA Overview .......................................................................................... 1-3 Section 301-303: Emergency Planning ......................................................... 1-3 Section 304: Emergency Release Notification ................................................ 1-3 Section 311-312: Hazardous Chemical Inventory Reporting ................................ 1-3 Section 313: Toxic Chemical Release Reporting/Emissions Inventory .................... 1-3 Form R Toxic Release Reporting Form ......................................................... 1-4 Form A Certification Statement Introduced .................................................. 1-5 ARE YOU SUBJECT TO EPCRA REPORTING OBLIGATIONS? ........................................ 2-1 Is Your Facility Subject to Section 313 Reporting? .......................................... 2-1 Do You Manufacture, Process or Otherwise Use MDI, PMDI or Other Substances That Are On the Section 313 List? ................................................ 2-1 Do You Manufacture, Process, or Otherwise Use Greater Than a Threshold Amount of Any Section 313 Chemicals? ................................. 2-4 Are You Subject to State MDI Permit Reporting Obligations? ............................. .2-5 IDENTIFYING RELEASE SOURCES ....................................................................... 3-1 ESTIMATING RELEASES OF MDI & PMDI ................................................................ 4-1 Techniques ........................................................................................ 4-1 Direct Measurement ..................................................................... 4-1 Mass Balance .............................................................................. 4-2 Emission Factors ......................................................................... 4-2 Engineering Calculations ................................................................ 4-2 Guidance Documents .................................................................... 4-4 Tanks Filling and Storage ....................................................................... 4-4 Working Losses ........................................................................... 4-4 Breathing Losses ......................................................................... 4-7 Fugitive Emissions ............................................................................... 4-9 Measured ................................................................................. 4-9 Equipment Leaks ....................................................................... 4-11 Spills ............................................................................................... 4-14 Disposal and Treatment ....................................................................... 4-17 ii
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