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Q&A: Is it Flammable liquid, corrosive n.o.s. or Corrosive liquid, flammable, n.o.s.?

Q&A: Is it Flammable liquid, corrosive n.o.s. or Corrosive liquid, flammable, n.o.s.?

A good question from someone looking to classify a hazardous material (April 4, 2017):

Hello,

Was wondering if you could answer this question. How do you choose whether a material mixture should be called “Flammable liquid corrosive n.o.s.” or “Corrosive liquid Flammable n.o.s.” I noticed both exist. regards

My answer the next day (April 5, 2017):Drum of ignitable and corrosive hazardous waste

Thank you for your question, I will do my best to answer below.

  • It is the responsibility of the shipper of a hazardous material to classify it per the PHMSA/USDOT Hazardous Materials Regulations (HMR).
  • At 49 CFR 172.101(c)(10) the HMR indicates the procedure for classifying a solution or mixture.  One option is to choose a generic shipping name: Flammable liquid, corrosive, n.o.s. (primary hazard class 3. Subsidiary hazard class 8) or Corrosive liquid, flammable, n.o.s. (primary hazard class 8. Subsidiary hazard class 3).
  • To determine the primary and subsidiary hazard class the shipper must first determine the packing group for each hazard class (Class 3 at 49 CFR 173.121. Class 8 at 49 CFR 173.137).
  • With the packing group determined for each hazard class (3 & 8), shipper must proceed to 49 CFR 173.2a and refer to the Precedence of Hazard Table.
  • Using the table the shipper can determine the primary and subsidiary hazard class.  This, then, can be used to determine the correct proper shipping name.

Contact me with any questions you may have about the transportation of hazardous materials by air, highway, vessel, or rail

International and Domestic

Daniels Training Services, Inc.

815.821.1550

Info@DanielsTraining.com

http://www.danielstraining.com/

Short answer:  Use the Hazardous Materials Regulations to determine if it is primarily corrosive or primarily flammable and then choose the correct proper shipping name.

I hope this helps.  Please contact me with any other questions.
And that did it:
Thanks Daniel.