(a) For situations other than those addressed by the requirements of Section 3480 where the risk of employee contact exists, hazardous liquids capable of inflicting physical injury upon contact with the skin (i.e., chemical/thermal burns, harmful temperature extremes) shall be covered, insulated or otherwise guarded against inadvertent contact.

(b) This order does not apply to operations where the nature of the work makes covering or guarding impracticable. In such cases, the employer shall provide, and the employee(s) shall wear, personal protective equipment in accordance with the requirements of Article 10 of these Orders.