If you suspect Division 2.3 or 6.1 materials might be flammable, you should also:

Do not allow smoking, open flame, or welding. Section 9.7.4 (Class 6): Take added precautions needed for flammable liquids... Do not allow

If you suspect Division 2.3 or 6.1 materials might be flammable, you should also:

ANSWER BREAKDOWN
  • A. Incorrect. "Use a lighter to test" is not correct. Section 9.7.4 (Class 6): Take added precautions needed for flammable liquids... Do not allow smoking, open flame, or welding.
  • B. Correct. Section 9.7.4 (Class 6): Take added precautions needed for flammable liquids... Do not allow smoking, open flame, or welding.
  • C. Incorrect. "Open all packages" is not correct. Section 9.7.4 (Class 6): Take added precautions needed for flammable liquids... Do not allow smoking, open flame, or welding.
  • D. Incorrect. "Park in the shade" is not correct. Section 9.7.4 (Class 6): Take added precautions needed for flammable liquids... Do not allow smoking, open flame, or welding.