Annex II of NR-16 – Hazardous Activities and Operations with Flammables

(SEPRT Ordinance No. 1357, of December 9, 2019)

1. The following activities or operations are considered hazardous, granting workers a 30% hazard pay, including those operating in the risk area:

    ACTIVITIES30% ADDITIONAL PAY
    a. Production, transportation, processing, and storage of liquefied gas.All workers in these activities.
    b. Transportation and storage of liquid and liquefied gas flammables and empty non-degassed or decanted containers.All workers in the operation area.
    c. In aircraft refueling stations.All workers in these activities or operating in the risk area.
    d. Loading and filling of tank ships, tank wagons, and tank trucks with liquid or liquefied gas flammables.All workers in these activities or operating in the risk area.
    e. Unloading of tank ships, tank wagons, and tank trucks with liquid or liquefied gas flammables or empty non-degassed or decanted containers.All workers in these activities or operating in the risk area.
    f. Operation and maintenance services of tank ships, tank wagons, tank trucks, pumps, and containers with liquid or liquefied gas flammables or empty non-degassed or decanted containers.All workers in these activities or operating in the risk area.
    g. Degassing, decanting, and repairs of non-degassed or decanted containers.All workers in these activities or operating in the risk area.
    h. Testing of gas-consuming devices and their equipment.All workers in these activities or operating in the risk area.
    i. Transportation of liquid and liquefied gas flammables in tank trucks.Drivers and assistants.
    j. Transportation of containers (in cargo trucks) containing liquid flammables, totaling 200 liters or more, if not following sub-items 4.1 and 4.2 of this Annex.Drivers and assistants.
    l. Transportation of containers (in trailer or cargo truck) containing liquefied gas flammables totaling 135 kg or more.Drivers and assistants.
    m. Operations at service stations and fuel pump stations for liquid flammables.Pump operators and workers operating in the risk area.

    2. Definitions for the purposes of this Regulatory Standard (NR):

    I. Operation and maintenance services for vessels, tank wagons, tank trucks, pumps, and flammable containers:

    a) Inspection, calibration, measurement, stock counting, and sampling activities in tanks or any containers filled with flammables.

    b) Surveillance, empty non-degassed container organization, propelling pump services in closed spaces, and superintendence.

    c) Maintenance, repairs, washing, painting of vessels, tanks, supply vehicles, and any non-degassed empty containers.

    d) Degassing and washing of vessels, tanks, vehicles, supply pumps, or any containers that contained liquid flammables.

    e) Any other maintenance or operation activities, such as warehouse services, office, safety inspection laboratory, stock checking, medical clinic, engineering, general workshops, boilers, mechanics, electricity, welding, filling, closing, and organizing any containers with substances considered flammable, provided these activities are carried out within hazardous areas, subject to approval by the Ministry of Labor.

    II. Operation and maintenance services for vessels, tank wagons, tank trucks, and liquefied gas flammable containers:

    a) Inspection activities at possible leak points in the storage, distribution, and tank measurement systems through direct escape processes.

    b) Superintendence services.

    c) Maintenance activities of the fleet of tank trucks, carried out within the area and around normal or eventual escape points.

    d) Decanting, degassing, washing, repairs, painting, and airing of tanks, cylinders, and LPG bottles.

    e) Any other maintenance or operations, carried out within areas considered hazardous by the Ministry of Labor.

    III. Storage of liquid flammables, in tanks or containers:

    a) Any activities carried out within the safety basin of the tanks.

    b) Drum or can arrangement or any other activities carried out within the flammable storage building or open spaces with filled flammable containers or non-degassed or decanted containers.

    IV. Storage of liquefied gas flammables, in tanks or containers:

    a) Container arrangement or any other activities carried out within the flammable storage building or open spaces with filled flammable containers or non-degassed or decanted containers.

    V. Operations at service stations and fuel pump stations for liquid flammables:

    a) Activities directly related to the refueling of vehicles with an explosion engine.

    VI. Other activities, such as maintenance, lubrication, vehicle washing, mechanics, electricity, sales office, and management, subject to approval by the Ministry of Labor.

    VII. Filling of any containers (drums, cans) with liquid flammables:

    a) Filling, closing, and arranging cans or boxes with cans.

    VIII. Filling of any containers (cylinders, bottles) with liquefied gas flammables:

    a) Filling, weighing, inspection, stowage, and arranging cylinders or LPG bottles.

    b) Other activities carried out within the area considered hazardous, subject to approval by the Ministry of Labor.

    3. Risk areas:

    ACTIVITYRISK AREA
    a. Oil wells in gas production.Circle with a minimum radius of 30 meters, centered at the wellhead.
    b. Refinery processing unit.Band at least 30 meters wide surrounding the operation area.
    c. Other refinery locations where operations with volatile flammables or potential volatility due to safety system failures or valve closures are carried out.Band at least 15 meters wide surrounding the operation area.
    d. Liquid flammable tanks.Entire safety basin.
    e. Elevated liquefied gas flammable tanks.Circle with a 3-meter radius centered at eventual leak points (valves, registers, measurement devices by escape, gaskets).
    f. Loading and unloading of liquid flammables contained in ships, barges, and boats.15-meter distance from the dock edge during the operation, extending the length of the vessel.
    g. Aircraft refueling.Entire operation area.
    h. Filling tank wagons and tank trucks with liquid flammables.Circle with a 15-meter radius centered at the tank filling ports.
    i. Filling tank wagons and tank trucks with liquefied gas flammables.Circle with a 7.5-meter radius centered at eventual leak points (valves and registers).
    j. Filling containers with liquefied gas flammables.Circle with a 15-meter radius centered at the filling nozzles.
    l. Filling containers with liquid flammables, in open locations.Circle with a 7.5-meter radius centered at the filling nozzles.
    m. Filling containers with liquid flammables, in closed locations.Entire internal area of the enclosure.
    n. Maintenance of tank vehicles, pumps, and containers that contained liquid flammables.Operation location, plus a 7.5-meter wide band around its external points.
    o. Degassing, decanting, and repairs of non-degassed or decanted containers used in flammable transport.Operation location, plus a 7.5-meter wide band around its external points.
    p. Tests on gas-consuming devices and their equipment.Operation location, plus a 7.5-meter wide band around its extreme points.
    q. Flammable refuelingEntire operation area, covering at least a circle with a 7.5-meter radius centered at the refueling point and the circle with a 7.5-meter radius centered at the vehicle refueling pump and a 7.5-meter wide band on both sides of the machine.
    r. Storage of containers containing liquid flammables or empty non-degassed or decanted containers, in open locations.3-meter wide band around its external points.
    s. Storage of containers containing liquid flammables or empty non-degassed or decanted containers, in closed locations.Entire internal area of the enclosure.
    t. Loading and unloading of containers containing liquid flammables or empty non-degassed or decanted containers, transported by ships, barges, or boats.3-meter distance from the dock edge during the operation, extending the length of the vessel.

    4. Conditions that do not characterize hazard for additional pay:

    4.1 Handling, storage, and transportation of liquid flammables in certified packages, whether simple, combined, or composite, as long as the limits stated in Table I below are observed, regardless of the total number of packages handled, stored, or transported, provided the Regulatory Standards issued by the Ministry of Labor and Employment, NBR 11564/91, and legislation on hazardous products related to the means of transport used are followed;

    4.2 Handling, storage, and transportation of containers up to five liters, sealed during manufacturing, containing liquid flammables, regardless of the total number of containers handled, stored, or transported, provided the Regulatory Standards issued by the Ministry of Labor and Employment and legislation on hazardous products related to the means of transport used are followed.

    Table I – Maximum Capacity for Liquid Flammable Packaging

    Inner PackagingOuter PackagingPackaging* Group IPackaging* Group IIPackaging* Group III
    Glass containers with more than 5 and up to 10 liters; Plastic with more than 5 and up to 30 liters; Metal with more than 5 and up to 40 liters.Metal Drums250 kg400 kg400 kg
    Plastic Drums250 kg400 kg400 kg
    Plywood Drums150 kg400 kg400 kg
    Fiber Drums75 kg400 kg400 kg
    Steel or Aluminum Boxes250 kg400 kg400 kg
    Natural Wood or Plywood Boxes150 kg400 kg400 kg
    Chipboard Boxes75 kg400 kg400 kg
    Cardboard Boxes75 kg400 kg400 kg
    Flexible Plastic Boxes60 kg60 kg60 kg
    Rigid Plastic Boxes150 kg400 kg400 kg
    Steel or Aluminum Jerricans120 kg120 kg120 kg
    Plastic Jerricans120 kg120 kg120 kg
    Simple Packaging
     Packaging* Group IPackaging* Group IIPackaging* Group III
    Steel drum, non-removable lid250 L450 L450 L
    Steel drum, removable lid250 L**
    Aluminum drum, non-removable lid250 L
    Aluminum drum, removable lid250 L**
    Other metals drum, non-removable lid250 L
    Other metals drum, removable lid250 L**
    Plastic drum, non-removable lid250 L**
    Plastic drum, removable lid250 L**
    Steel jerrican, non-removable lid60 L60 L60 L
    Steel jerrican, removable lid60 L**
    Aluminum jerrican, non-removable lid60 L
    Aluminum jerrican, removable lid60 L**
    Other metals jerrican, non-removable lid60 L
    Other metals jerrican, removable lid60 L**
    Plastic jerrican, non-removable lid60 L**
    Plastic jerrican, removable lid60 L

    Composite PackagingPackaging* Group IPackaging* Group IIPackaging* Group III
    Plastic with an outer drum of steel or aluminum250 L250 L250 L
    Plastic with an outer drum of fiber, plastic, or plywood250 L250 L250 L
    Plastic with a crate or outer box of steel, aluminum, or wood, or an outer box of plywood, cardboard, or rigid plastic120 L250 L250 L
    Glass with an outer drum of steel, aluminum, fiber, plywood, flexible plastic60 L60 L60 L
    In a box of steel, aluminum, wood, cardboard, or plywood60 L60 L60 L

    ** As per NBR 11564 definitions – ABNT.

    ** Only for substances with viscosities greater than 200 mm²/seg

    Glossary

    Boxes: Elements with rectangular or polygonal faces, made of metal, wood, cardboard, flexible plastic, rigid plastic, or other compatible materials.

    Certified Packaging: Those approved in the tests and performance standards set for packaging, according to NBR 11564/91.

    Combined Packaging: A combination of packaging, consisting of one or more inner packagings packed in an outer packaging.

    Composite Packaging: Consists of an outer packaging and an inner container, constructed in such a way that the inner container and the outer packaging form a unit that remains integrated, being filled, handled, stored, transported, and emptied as such.

    Containers: Containment elements, with any closure means, intended to receive and contain liquid flammables. Examples: cans, bottles, etc.

    Drums: Cylindrical elements with a flat or convex bottom, made of metal, plastic, wood, fiber, or other suitable materials. This definition also includes other shapes, excluding jerricans. For example: a round container with a clamped lid or a bucket shape.

    Packaging Group: Liquid flammables are classified for packaging purposes according to 3 groups, based on the risk level:

    • Group I – high risk
    • Group II – medium risk
    • Group III – low risk

    For the classification of Packaging Group based on risk, the classification described in the table of item 4 – Dangerous Products List, of Ordinance No. 204, of May 20, 1997, of the Ministry of Transport, will be adopted.

    Inner Packaging: Those requiring outer packaging for handling, storage, or transport.

    Jerricans: Metal or plastic elements, with a rectangular or polygonal section.

    Liquid Flammables: For the purposes of the hazard allowance are defined in NR-20.

    Outer Packaging: The external protection of a composite or combined packaging, along with any other necessary components to contain and protect containers or packagings.

    Packaging or Simple Packaging: Containers or any other necessary components or materials to package, whose function is to contain and protect liquid flammables.

    Sealed: Closed during the filling process, so they do not present leaks under normal handling, storage, or transport conditions, as well as due to temperature, humidity, or pressure variations, or under the effects of shocks and vibrations.