35. Access with guardrails: When charging by hand, by wheelbarrow or by truck, the access to the charging doors of cupola furnaces shall be provided with guardrails on each side. In locations where there is danger of dropping material off the charging ramp, a 1 m high wall shall be built on both sides.
R.R.Q., 1981, c. S-2.1, r. 20, s. 35.