Arkema, Inc. — Hazardous Materials Safety Interpretation

Page 1f Transportatio S. Departmer Washington, D.C. 20590 400 Seventh Street, S.W. Pipeline and Hazardous Materials Safety Administration MAY 12 2005 Ms. Christina M. Kurtz Supervisor-Regulations and Packaging Ref. No. 05-0079 Arkema, Inc. 2000 Market Street Philadelphia, PA 19103 Dear Ms. Kurtz: This responds to your March 30, 2005 letter requesting clarification on the proper PG III material under the Hazardous Materials Regulations (HMR; 49 CFR Parts 171- shipping name for "Acrylic Acid ≥ 99%" that also meets the definition of a Division 6.1, 180). Specifically, you ask whether you should use the proper shipping name specifically identified in the Hazardous Materials Table (HMT) in § 172.101 for Acrylic Acid or a generic entry based on the hazard class of the material. According to your letter, you describe your material on shipping papers as "Acrylic Acid, stabilized, 8, (3, 6.1), UN 2218, PG II." Your understanding is correct. A generic "N.O.S" description is used for multiple hazard materials only when the material is not specifically identified in the HMT. I hope this answers your inquiry. Sincerely, / Chief, Standards Development Branch Office of Hazardous Materials Standards 172.101 (c)(г)iii) 172.402 (a) (2) 050079 172-2026) 2)#

Page 2Boothe §172.101 (a) (12) iii) ARKeMA $72.402 (a) 2) §172. 202 (a) 2) Proper shipping Name March 30, 2005 05 - 0079 Office of Hazardous Materials Standards U.S. Department of Transportation PHMSA 400 Seventh Street, S. W Washington, D.C. 20590-0001 Attn: {DHM-10} §172.202(ia)(2)) Re: Subsidiary labeling and description (§172.402(a)(2), §172.101(c)(12)(iii), and Dear Mr. Mazzullo: Arkema Inc currently ships Acrylic Acid >99%. The description in the 172.101 table is: Acrylic Acid, stabilized, 8 (3), UN 2218, PGII. We have tested our material and it also meets the definition of a 6.1, PGIII. Thus, per the requirements of §172.402(a)(2), we label our material toxic as well. Please see attached MSDS, section 11. We describe the material on the shipping papers as: Acrylic Acid, stabilized, 8(3,6.1), not classify the material as a NOS description due to our interpretation of UN 2218, PGIl per the requirements of §172.202(a)(2). It is our belief that we should §172.101((c) (12)(iii) that states that a NOS description is only used for multiple hazard materials when the name is NOT specifically identified in the table. This makes sense to us since the "Acrylic Acid" description would be the one that would be of the most assistance io emergency responders. Could you please tell us if our understanding of the regulations is accurate. Sincerely, Hurtina M. Kurta Christina M. Kurtz Supervisor - Regulations and Packaging Arkema Inc. (formerly Atofina Chemicals, Inc.) Phone: 215-419-7417 Fax: 215-419-5220 Arkemaineil: Christina.kurtz@arkemagroup.com Philadelphia, PA 19103 2000 Market Street Tel. : 215 419 7000 www.arkemagroup.com#