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(a) Whenever it is necessary to agitate or mix one or more hazardous substances which spatter, splash, spray, boil-over, or create temperature extremes on being mixed, employees shall be protected from harmful contact or exposure by shielding or other means appropriate to the hazards presented when feasible.
(b) Where such process involves steam or air at pressure higher than that which may be safely used to heat or agitate the substances, effective means shall be provided in the line to prevent the delivery of excessive pressures of steam or air to the containers.
(c) Controls shall be so located that any employee operating them will not be exposed to or contacted by the hazardous substance(s).
(d) Tubular gauges on stationary tanks, vats, or containers which contain hazardous liquids shall be shielded to prevent liquid spray from endangering employees should the gauge break. All such gauges shall be guarded when exposed to the hazard of being broken by accidental impact and in all cases when located less than seven feet above or three feet laterally from working levels or passageways.
NOTE: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.
1. Amendment of subsection (b)(3) filed 9-14-78; effective thirtieth day thereafter (Register 78, No. 37).
2. Amendment filed 12-10-87; operative 1-9-88 (Register 87, No. 51).
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