New York Codes, Rules and Regulations › Title 12 - DEPARTMENT OF LABOR › Chapter I - Industrial Board Of Appeals › Subchapter A - The Industrial Code › Part 12 - Control Of Air Contaminants › Subpart 12-1 - General Requirements › Section 12-1.8 - Operations using flammable liquids

Current through Register Vol. 46, No. 28, July 10, 2024
(a)
Use of flammable liquids.
(1)
Use of certain flammable
					 liquids.
The use of flammable liquids for paint removal, cleaning
						or any other process in which they are unprotected and exposed shall be
						restricted to areas provided with mechanical ventilation creating an air
						movement of at least 100 feet per minute over the surface of the work while the
						work is being carried on. The use of benzene for such operations is prohibited.
						Any solvent used shall contain not more than 3 percent benzene as an impurity.
						Flammable liquids shall not be used to clean walls, ceilings or floors in a
						workroom.
(2)
Transfer of flammable liquids.
The transfer of flammable liquids shall be by means of a
						hose or pipe leading to the bottom of the vessel being filled, except for the
						filling of approved safety cans. When transferring such liquids from one metal
						container to any other metal container, the two containers shall be bonded
						together electrically and be properly grounded.
Exception:
This paragraph does not apply to the filling of motor
						vehicle and industrial equipment fuel tanks.
(3)
Mixing and thinning of flammable
					 liquids.
The mixing and thinning indoors of flammable liquids in
						unit quantities greater than 55 gallons shall be done only in a mixing or
						spraying room and in such manner and under such ventilation as will effect
						compliance with this Part (rule). Lesser quantities shall be mixed or thinned
						indoors only in such a room or within a hood, booth or working area provided
						with ventilation as specified in section
						18.20 of Industrial Code Part
						(Rule No.) 18.
Exception:
Quantities of five gallons or less may be mixed or
						thinned when natural ventilation will reduce the vapor concentrations to the
						limits as specified in Table I of this Part (rule) within five minutes.
(4)
Coating removal by use
					 of solvents.
Such a process shall be provided with adequate exhaust
						ventilation while the removal of residue, paint or other material is being
						performed. The rate of ventilation shall be that specified in Industrial Code
						Part (Rule No.) 18.
Note:
The use of benzene or carbon tetrachloride for such an
						operation is prohibited.
(5)
Cleaning solvents.
Flammable liquids used for cleaning permanent surfaces
						other than floors in a working space shall have a flash point above 100 degrees
						Fahrenheit. The use of benzene for this operation is prohibited. No flammable
						liquids shall be used to clean floors.
(6)
Tanks, troughs and mechanical
					 application.
(i)
Enclosed
					 operations.
Enclosed operations involving the use of flammable liquids
					 and any subsequent drying operations shall be mechanically ventilated to
					 maintain the concentration of vapors within the enclosures below 25 percent of
					 the lower explosive level. Necessary work openings of such enclosures shall
					 have inward air flows maintained by mechanical ventilation. As an alternative
					 method, enclosed processes may be operated in an inert atmosphere. Where an
					 inert atmosphere is used for an enclosed operation, adequate provision shall be
					 made to insure that sufficient oxygen is available in the areas surrounding
					 such enclosed operation. Any escape of the inert atmosphere to areas outside
					 the enclosure shall not accumulate and create dangerous air
					 contaminants.
(ii)
Fire
					 protection.
Tanks and troughs containing flammable liquids shall be
					 provided with heat-actuated automatically closing covers arranged so as not to
					 interfere with exhaust ventilation. Where operations in such tanks and troughs
					 are performed automatically the tanks and troughs shall be provided with
					 approved fire extinguishing systems.
Note:
For additional requirements concerning fire protection
						see paragraph 12-1.8(c)(1) of this Part (rule).
(iii)
Installation of tanks.
Tanks shall be arranged to prevent accidental tipping.
(iv)
Heating of liquids.
Devices used for heating flammable liquids shall be provided with an automatic
					 temperature regulation device so arranged that the source of heat shall be
					 automatically shut off when the temperature of the liquid rises above the
					 normal operating temperature.