(b) If human experience or other data indicate that the hazard of a material is greater or less than indicated by the results of the tests specified in paragraph (a) of this section, PHMSA may revise its classification or make the determination that the material is not subject to the requirements of this subchapter.

Class 8 dangerous goodsexamples

(c) Skin corrosion test data produced no later than September 30, 1995, using the procedures of part 173, appendix A, in effect on September 30, 1995 (see 49 CFR part 173, appendix A, revised as of October 1, 1994) for appropriate exposure times may be used for classification and assignment of packing group for Class 8 materials corrosive to skin.

Our Senior Master Instructor Certification Level is comprised of 5 separate courses to help instructors develop their skills when working with trainees.

Class 8 dangerous goodstransportation

CVTA’s Senior Master Instructor Certification ois the fifth level of education for professional instructors. This level of training is designed to add additional teaching knowledge for CVTA certification and provides instructors with more advanced instruction tools to better serve their students.

Please note, in order to achieve the certification from the CVTA, a Student Instructor must first achieve the level of Safety Professional and have a minimum of 450 hours of verifiable professional instruction in the industry and successfully complete all courses in the Senior Master Instructor Level. Without these requirements being completed and verified, CVTA will not issue a certification for this level.

(a) For the purpose of this subchapter, “corrosive material” (Class 8) means a liquid or solid that causes irreversible damage to human skin at the site of contact within a specified period of time. A liquid, or a solid which may become liquid during transportation, that has a severe corrosion rate on steel or aluminum based on the criteria in § 173.137(c)(2) is also a corrosive material. Whenever practical, in vitro test methods authorized in § 173.137 of this part or historical data authorized in paragraph (c) of this section should be used to determine whether a material is corrosive.