Annex 13 of NR15 – Chemical Agents

List of activities and operations involving chemical agents, considered unhealthy as a result of inspections performed in the workplace.

The activities or operations with the chemical agents listed in Annex 11 and 12 is excluded.


Degree of Hazard – Maximum

Extraction and handling of arsenic and preparation of its compounds.

Manufacture and preparation of arsenic-based paints

Manufacture of parasiticides, insecticides and rodenticides containing arsenic compounds.

Paint spraying with arsenic compound pigments in confined or enclosed spaces.

Preparation of Secret.

Production of arsenic trioxide.

Degree of Hazard – Medium

Tanning in black and green with arsenic compounds.

Conservation of furs and feathers; depilation of skins based on arsenic compounds.

Discoloration of glass and crystal-based arsenic compounds.

Use of parasiticides, insecticides and rodenticides based on arsenic compounds.

Manufacture of playing cards, painted papers and artificial flowers based on arsenic compounds.

Metallurgy of arsenic minerals (gold, silver, copper, zinc, nickel, antimony, cobalt and iron).

Galvanotecnic operations based on arsenic compounds.

Hand painting (brush and roller) with arsenic compound pigments in confined or enclosed spaces, except with capillary brush.

Degree of Hazard – Minimum

Stuffing of animals based on arsenic compounds.

Manufacture of taffeta ‘sire’.

Paint spraying or hand painting with arsenic compound pigments outdoors.


Degree of Hazard – Maximum

Permanent underground work in cutting, drilling and blasting operations, loading in blasting site, in handling activities, load transfer and dumper points.

Degree of Hazard – Medium

Other permanent underground activities including services such as: operations of locomotives, conductors, couplers, firefighters, loggers, electricians.

Degree of Hazard – Minimum

Permanent surface activities in dry operation, with crushers, sieves, sorters, loading and unloading silos, conveyor belts and cable cars.


Degree of Hazard – Maximum

Manufacture of the compounds of lead, carbonate, arsenate, chromate min, litharge and the like.

Manufacture of enamels, varnishes, colors, pigments, paints, ointments, oils, pastes, liquids and powders based on lead compounds.

Manufacture and restoration of accumulators, electric batteries and cells containing lead compounds.

Manufacture and use of tetra ethyl lead and tetra methyl lead.

Foundry and lamination of lead, old copper and brass zinc.

Cleaning, scraping and repairing the mixing tanks, storage and other works with gasoline containing tetra ethyl lead.

Paint spraying with lead compound pigments in confined or enclosed spaces.

Vulcanization of rubber by litharge or other lead compounds.

Degree of Hazard – Medium

Application and use of enamels, varnishes, colors, pigments, paints, inments, oils, pastes, liquids and powders based on lead compounds.

Manufacture of porcelain with enamels of lead compounds.

Hand painting and decoration (brush and roller) with lead compound pigments (except capillary brush) in confined or enclosed spaces.

Dyeing and printing with pigments based on lead compounds.

Degree of Hazard – Minimum

Paint spraying or hand painting with copper compound pigments outdoors.


Degree of Hazard – Maximum

Manufacture of chromates and bichromates.

Paint spraying with chrome compound pigments in confined or enclosed spaces.

Degree of Hazard – Medium

Electrolytic chromating of metals.

Manufacture of phosphoric matchsticks based on chromium compounds (preparation of pulp and work on dryers).

Manipulation of chromate and bichromates.

Hand painting with chrome compound pigments in confined or enclosed spaces (except with capillary brush).

Preparation of printing cliches based on chrome compounds through photo-mechanical processes.

Timber treatment with chrome.


Degree of Hazard – Maximum

Extraction and preparation of white phosphor and its compounds.

Manufacture of phosphorous pesticides and organo-phosphates.

Manufacture of incendiary projectiles, explosives and asphyxiating gases based on white phosphorus.

Degree of Hazard – Medium

Use of organo-phosphate pesticides.

Manufacture of phosphor bronze.

Manufacture of phosphorous wicks for miner lamps.


Degree of Hazard – Maximum

Distillation of coal tar.

Distillation of petroleum.

Manipulation of tar, pitch, bitumen, anthracene, mineral oils, burnt oil, paraffin or other related carcinogens.

Manufacture of phenols, cresols, naphthols, nitro-derivatives, amino-derivatives, halogenated derivatives and other toxic substances derived from cyclic hydrocarbons.

Paint spraying with enamels, paints, varnishes and solvents containing aromatic hydrocarbons.

Degree of Hazard – Medium

Use of organochlorine pesticides: DDT (dichlorodiphenyltrichloroethane) DDD (dichlorodiphenyldichloroethane), methoxychlor (dimethoxydiphenyltrichloroethane), BHC (benzene hexachloride) and its compounds and isomers.

Use of pesticides derived from carbonic acid.

Use of amino derivatives of aromatic hydrocarbons (aniline homologue)

Use of cresol, naphthalene and toxic derivatives.

Use of isocyanate in the formation of polyurethanes (lacquers of demolding, double composition, wood and metal protectives, special adhesives and other products based on polyisocyanates and polyurethanes).

Use of products containing aromatic hydrocarbons like solvents or in cleaning parts.

Manufacture of rubber products, products for waterproofing and waterproof fabrics based on hydrocarbons.

Manufacture of linoleum, celluloids, lacquers, paints, enamels, varnishes, solvents, glues, ebonite artifacts, gutta-perchas, straw hats and the like based on hydrocarbons.

Cleaning motors and parts with pressurized diesel oil (nebulization)

Brush painting with enamels, paints, varnishes in solvent containing aromatic hydrocarbons.


Degree of Hazard – Maximum

Manufacture and manipulation of organic mercury compounds.


Degree of Hazard – Maximum

Operations that give off silicate dust in permanent underground works, in mines and tunnels (cutting, drilling, blasting, loading and other activities carried out at the site of underground blasting and crushing).

Extraction, crushing and grinding of talk.

Manufacture of refractory material, such as refractories for formworks, chimneys and melting pots; waste recovery.


Any exposure or contact with the following substances or processes shall not be permitted by any means:

– 4 – aminodiphenyl;
– Benzinide production;
– Beta naphthylamine;
– 4 – nitrodiphenyl,

No exposure or contact shall be understood as sealing off the process or operation, using the best engineering methods, and the worker shall be adequately protected so as not to allow any contact with the carcinogenic.

Whenever the processes or operations are not sealed off, serious and imminent risk to the worker shall be considered.

The provisions in Annex 13A shall be observed for the Benzene.


Degree of Hazard – Maximum

Operations with cadmium and its compounds, extraction, treatment, preparation of alloys, manufacture and use of its compounds, welding with cadmium, use in fotography with ultraviolet light, in the manufacture of glass, as antioxidant, in metal coatings, and other products.

Operations with manganese and its compounds: extraction, treatment, crushing/grinding, transportation; manufacture of manganese compounds, manufacture of dry batteries, manufacture of special glass, ceramic industry and other operations with prolonged exposure to pyrolusite dust or other manganese compounds.

Operations with following substances:

-Ether bis (chloromethyl)
-Dimethyl-carbamoyl chloride
-3,3 ‘- dichlorobenzidine
-Vinyl cyclohexane dioxide
-4,4 ‘- methylenebis (2-chloroaniline)
-4,4 ‘- methylenedianiline
-Propane sultone
-Production of ammonium trioxide roasting nickel sulfide.

Degree of Hazard – Medium

Aluminum paint spraying.

Manufacture of aluminum power (crushing and grinding).

Manufacture of emetine and pulverization of ipecac.

Manufacture and manipulation of oxalic, sulfuric nitric, hydrobromic, phosphoric and picric acid.


Operations with timbó.

Operations with sugarcane bagasse in the phases of large exposure to dust.

Galvanoplasty operations: gilding, silvering, nickel plating, chrome plating, zinc plating, copper plating, aluminum anodizing.

Telegraphy and radiotelegraphy, manipulation in Morse type devices and reception of signals in phones.

Work with Thomas slags: removing, crushing, grinding and stowing.

Paint removal, dry scraping and burning.

Works in the extraction of salt (salines).

Manufacturing and handling of caustic alkalis.

Work on ship decks.

Degree of Hazard – Minimum

Manufacturing and transportation of lime and cement in the phases of high exposure to dust.

Loading, unloading or removal of sulfur and sulfite in general, in bags or in bulk.

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