Initial Review Engineering Report for Premanufacture Notice (PMN) P-10-0452.txt INITIAL REVIEW ENGINEERING REPORT PMN: 10-0452 Focus Ready Draft 8/16/2010 ENGINEER: Avcin \ BCS/CLM PV (kg/yr): Revision Notes / Assessment Overview: Made fixes 8/11/10 according to CEB markups on first draft of IRER SUBMITTER: Huntsman Corporation USE: Epoxy curing agent which will be blended with an epoxy resin system and injected into a mold containing fiberglass. The finished article will be a wind turbine blade for us

OTHER USES: MSDS: Yes Label: No Gen Eqpt: Eng Controls: local exhaust ventilation. // Eyes: safety eyewear. // Skin: personal protective equipment for the body should be selected based on the task being performed. // Hands: cheimcal-resistant, impervious gloves. Respirator: use a properly fitted, air-purifying or air-fed respirator complying with an approved standard if a risk assessment indicates this is necessary. Health Effects: Corrosive to eyes and skin. Causes burns. May be harmful if absorbed through skin or if swallowed. TLV/PEL: none established

CRSS : Chemical Name:

Physical State and Misc CRSS Info:

Consumer Use: SAT (concerns) (08/06/2010): Page 1Initial Review Engineering Report for Premanufacture Notice (PMN) P-10-0452.txt Related Cases and Related Cases and Misc SAT Info:
Migration to groundwater: Moderate PBT rating: P1B1T1 . Health: 2-3 Dermal, Inhalation Eco: 2 Water (All releases to water with a CC = 98 ppb) OCCUPATIONAL EXPOSURE RATING: 2-3B NOTES & KEY ASSUMPTIONS: Generated by the 06/07/2005 version of ChemSTEER.

POLLUTION PREVENTION CONSIDERATIONS:

EXPOSURE-BASED REVIEW:

INITIAL REVIEW ENGINEERING REPORT PMN: 10-0452 Page 2Initial Review Engineering Report for Premanufacture Notice (PMN) P-10-0452.txt MFG: Manufacture of PMN Number of Sites/ Location: Days/yr: Basis:
Process Description:

ENVIRONMENTAL RELEASES ESTIMATE SUMMARY IRER Note: The daily releases listed for any source below may coincide with daily releases from the other sources to the same medium.

Output 2: to: from: basis:

Output 2: to: from: basis:

Output 2: to: from: basis:

Output 2: to: from: basis: Page 3Initial Review Engineering Report for Premanufacture Notice (PMN) P-10-0452.txt Typical: Worst Case: to: air from: basis: Typical: Worst Case: to: from: basis: RELEASE TOTAL kg/yr -

OCCUPATIONAL EXPOSURES ESTIMATE SUMMARY Tot. # of workers exposed via assessed routes: Basis:

Inhalation: Exposure to Typical: Worst Case: Number of workers (all sites) with inhalation exposure: Basis:

INHALATION MONITORING DATA REVIEW 1) Uncertainty (estimate based on model, regulatory limit or data not specific to industry): 2)a) Exposure level > 1 mg/day? OR b) Hazard Rating for health of 2 or greater? Inhalation Monitoring Data Desired? met) Exposure to Typical: Worst Case: Number of workers (all sites) with inhalation exposure: Basis:

INHALATION MONITORING DATA REVIEW 1) Uncertainty (estimate based on model, regulatory limit or data not specific to industry): 2)a) Exposure level > 1 mg/day? OR b) Hazard Rating for health of 2 or greater? Inhalation Monitoring Data Desired? Page 4Initial Review Engineering Report for Premanufacture Notice (PMN) P-10-0452.txt Dermal: Exposure to High End: Number of workers (all sites) with dermal exposure: Basis:
Exposure to High End: Number of workers (all sites) with dermal exposure: Basis:

INITIAL REVIEW ENGINEERING REPORT PMN: 10-0452 PROC/USE: Fiberglass Wind Blade Production Number of Sites/ Location: Days/yr: Basis:
Process Description:

ENVIRONMENTAL RELEASES ESTIMATE SUMMARY IRER Note: The daily releases listed for any source below may coincide with daily releases from the other sources to the same medium.

Output 2: to: from: basis:

High End: to: from: basis:

Conservative: Page 5Initial Review Engineering Report for Premanufacture Notice (PMN) P-10-0452.txt to: from: basis:

Output 2: to: from: basis:

Typical: Worst Case: to: from: basis: Output 2: to: from: basis: Output 2: to: from: basis: RELEASE TOTAL kg/yr -

OCCUPATIONAL EXPOSURES ESTIMATE SUMMARY Tot. # of workers exposed via assessed routes: Basis:

Inhalation: Exposure to Typical: Worst Case: Number of workers (all sites) with inhalation exposure: Basis:

INHALATION MONITORING DATA REVIEW 1) Uncertainty (estimate based on model, regulatory limit or data not specific to industry): Page 6Initial Review Engineering Report for Premanufacture Notice (PMN) P-10-0452.txt 2)a) Exposure level > 1 mg/day? OR b) Hazard Rating for health of 2 or greater? Inhalation Monitoring Data Desired? met) Dermal: Exposure to High End: Number of workers (all sites) with dermal exposure: Basis:

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