INITIAL REVIEW ENGINEERING REPORT PMN: 12-0133 Focus Ready Draft 1/30/2012 ENGINEER: Austin \ BCS PV (kg/yr):

SUBMITTER: USE: Prepolymer for a urethane coating used on wind craft wings.

OTHER USES:

MSDS: Yes Label: No Gen Eqpt: Eng Controls: General mechanical room ventilation is satisfactory for normal handling and storage operations. // Hand: Chemical resistant protective gloves // Eye: Safety glasses with side shields. // Skin: Chemical resistant clothing Respirator: May be needed if product is used in a confined or poorly ventilated area. Health Effects: May cuase eye and skin irritation // Exposure to vapor can cause irritation to eyes, lungs and mucous membrandes. Repeated inhalation of minimal amounts of vapor can cause respiratory sensitization and asthma. // May cause skin sensitization TLV/PEL: Hexamethylene diisocyanate 0.1 wt % 0.005 ppm TLV-TWA MSDS Component of PMN

CRSS : Chemical Name:
S-H20: Reacts g/L @ VP: 1.0E-6 torr @ MW: 1243.00 6.40%<500 24.40%<1000 Physical State and Misc CRSS Info: Neat: Liquid Mfg: Liquid Proc/Form: Liquid, PMN materialin coating formulation End Use: Destroyed. Submitted data: NAVG MW = 1243 by GPC with 6.4% less than 500 and 24.4% less than 1000; viscous liquid. Estimated data: high boiling point and negligible vapor pressure (high MW polymer); reacts with water (isocyanate terminated). The substance is expected to hydrolyze with a half-life of hours to yield the polymer with NH2 groups in place of the N=C=O groups. NCO FGEW = MW/2 = 622 (end capped).
Consumer Use: No SAT (concerns) (01/13/2012):
Migration to groundwater: Negligible PBT rating: P3B1T1 PMN: P1B1T1; Hyd Pdt: P3B1T1 Health: 1-2 Dermal, Inhalation Eco: 1 No releases to Water
OCCUPATIONAL EXPOSURE RATING: 1B
NOTES & KEY ASSUMPTIONS: Generated by the 06/07/2005 version of ChemSTEER. This PMN is manufacturing domestically, therefore, manufacturing is assessed. Proc/Use as a prepolymer to produce a polyurethane coating is assessed. // Note SAT concerns for dermal and inhalation with no releases to water required and migration to gw = negl. Therefore, this IRER only assessed releases to air and incineration to address inhalation concern. // Dermal exposure is assessed for all operations. Inhalation exposure is expected to be negl. (VP < 0.001 torr) for all operations // For MFG: This IRER assesses equipment cleaning releases to uncertain media. Additional submitter estimates releases to stack air and solid waste are also assessed. // For PROC/USE: This IRER assesses equipment and container cleaning to uncertain media. //
All past were manufacturing domestically as liquid and used as liquids (consistent with this IRER). All past cases assess dermal exposures but do assess inhalation exposure due to low VP (consistent with this IRER). All past cases assessed equipment cleaning during manufacturing to uncertain media due to lack of submission information (consistent with this IRER). All past cases assesses container and equipment cleaning to uncertain media during use due to lack of submission information (consistent with this IRER). All past cases assume the substance is complete consumed during end use to make a final product (consistent with this IRER).
POLLUTION PREVENTION CONSIDERATIONS:No Pollution Prevention information provided by the submitter.
EXPOSURE-BASED REVIEW: No
INITIAL REVIEW ENGINEERING REPORT PMN: 12-0133 MFG: Manufacture of PMN Number of Sites/ Location: 1 Chemtura Corporation Gastonia NC 28054 Days/yr: 8 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.OCCUPATIONAL EXPOSURES ESTIMATE SUMMARY Tot. # of workers exposed via assessed routes: 15 Basis:

Inhalation: negligible (VP < 0.001 torr)

Dermal: Exposure to Liquid at 100.00% concentration High End: 1.8E+3 mg/day over 30 days/yr Number of workers (all sites) with dermal exposure: 15 Basis:

INITIAL REVIEW ENGINEERING REPORT PMN: 12-0133 PROC/USE: Chemical Intermediate - Prepolymer for Urethane Coating Number of Sites/ Location: 1 BASF Corporation, Detroit Regional Distribution Wyandotte MI 48192 Days/yr: 250 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.

OCCUPATIONAL EXPOSURES ESTIMATE SUMMARY Tot. # of workers exposed via assessed routes: 3 Basis:Inhalation: negligible (VP < 0.001 torr)

Dermal: Exposure to Liquid at 100.00% concentration High End: 1.8E+3 mg/day over 250 days/yr Number of workers (all sites) with dermal exposure: 3 Basis: