Regulations, 2021

L.N. 356 of 2021

OCCUPATIONAL HEALTH AND SAFETY AUTHORITY ACT

(CAP. 424)

Protection of the Health and Safety of Workers from the risks

related to Chemical Agents at Work (Amendment)

Regulations, 2021

IN EXERCISE of the powers conferred by article 12 of the

Occupational Health and Safety Authority Act, the Deputy Prime

Minister and Minister for Health, after consultation with the

Occupational Health and Safety Authority, has made the following

regulations:-

The title of these regulations is the Protection of the Health

and Safety of Workers from the risks related to Chemical Agents at

Work (Amendment) Regulations, 2021, and these regulations shall be

read and construed as one with the Protection of the Health and Safety

of Workers from the risks related to Chemical Agents at Work

Regulations, hereinafter referred to as "the principal regulations".

Sub-regulation (2) of regulation 1 of the principal regulations

shall be substituted by the following

"(2) The scope of these regulations is to

(a) lay down minimum requirements for the

protection of workers from risks to their health and safety

arising, or likely to arise, from the effects of chemical

agents that are present at the workplace or as a result of any

work activity involving chemical agents;

(b) implement Directive 2014/27/EU of the

European Parliament and of the Council of 26 February

2014 amending Council Directives 92/58/EEC, 92/85/EEC,

94/33/EC, 98/24/EC and Directive 2004/37/EC of the

European Parliament and of the Council, in order to align

them to Regulation (EC) No 1272/2008 on classification,

labelling and packaging of substances and mixtures;

(c) implement Commission Directive (EU) 2017/

164 of 31 January 2017 establishing a fourth list of

indicative occupational exposure limit values pursuant to

Council Directive 98/24/EC, and amending Commission

Directives 91/222/EC, 2000/39/EC and 2009/161/EU;

(d) implement Commission Directive (EU) 2019/

1831 of 24 October 2019 establishing a fifth list of

indicative occupational exposure limit values pursuant to

Council Directive 98/24/EC, and amending Commission

Directive 2000/39/EC.".

Schedule V of the principal regulations shall be substituted

by the following

"SCHEDULE V

OCCUPATIONAL EXPOSURE LIMIT VALUES

Limit values

Name of agent

CAS No ( 2 )

Eight hours ( 4 )

Short-term ( 5 )

mg/

ppm

ppm

mg/m3

m3

(7)

(7)

(6)

(6)

54-11-5

Nicotine

0.5

-

-

55-63-0

Glycerol trinitrate

0.095

0.01

0.19

0.02

Carbon tetrachloride;

56-23-5

Tetrachloromethane

4

60-29-7

Diethylether

61-82-5

Amitrole

0.2

-

-

15 )

62-53-3

Aniline (

7. 74

35

64-18-6

Formic acid

-

64-19-7

Acetic acid

67-56-1

Methanol

-

67-64-1

Acetone

-

67-66-3

Chloroform

-

N,N-

68-12-2

Dimethylformamide

71-55-6

1,1,1-Trichloroethane

74-87-3

Chloromethane

-

-

Hydrogen cyanide

74-90-8

(as cyanide)

0.9

4.5

75-00-3

Chloroethane

-

75-04-7

Ethylamine

9.4

-

75-05-8

Acetonitrile

-

Methylene chloride;

75-09-2

Dichloromethane

75-15-0

Carbon disulphide

-

75-34-3

1,1-Dichloroethane

-

Vinylidene chloride;

75-35-4

1,1- Dichloroethylene

75-44-5

Phosgene

0.08

0.02

0.4

0.1

75-45-6

Chlorodifluoromethane

-

75-50-3

Trimethylamine

4.9

12.5

201-083-8

78-10-4

Tetraethyl orthosilicate

-

-

-

201-142-8

78-78-4

Isopentane

-

-

-

201-159-0

78-93-3

Butanone

-

201-176-3

79-09-4

Propionic acid

-

Acrylic acid; Prop-2-

59( 8 )

20( 8 )

201-177-9

79-10-7

enoic acid

-

201-188-9

79-24-3

Nitroethane

skin

Bisphenol A; 4,4’-

2( 9 )

201-245-8

80-05-7

Isopropylidenediphenol

-

-

-

-

201-297-1

80-62-6

Methyl methacrylate

-

-

-

201-865-9

88-89-1

Picric acid

0.1

-

-

-

-

202-049-5

91-20-3

Naphtalene

-

-

-

202-422-2

95-47-6

skin

o-Xylene

202-425-9

95-50-1

1,2-Dichlorobenzene

skin

202-436-9

95-63-6

1,2,4-Trimethylbenzene

-

-

-

202-500-6

96-33-3

Methyl acrylate

-

2-Phenyl-propane

(Cumene) ( 15 )

202-704-5

98-82-8

skin

202-705-0

98-83-9

2-Phenylpropene

-

202-716-0

98-95-3

Nitrobenzene

0.2

-

-

skin

202-849-4

100-41-4

Ethylbenzene

skin

202-981-2

101-84-8

Diphenyl ether

-

203-234-3

104-76-7

2-Ethylhexan-1-ol

5.4

-

-

-

203-300-1

105-46-4

sec-Butylacetate

-

ε-Caprolactam (dust

203-313-2

105-60-2

and vapour)

-

-

-

203-388-1

106-35-4

Heptan-3-one

-

-

-

203-396-5

106-42-3

p-Xylene

skin

1,4-Dichlorobenzene;

203-400-5

106-46-7

p- Dichlorobenzene

skin

203-403-1

106-49-0

4-aminotoluene

4.46

8.92

skin

Acrolein;

Acrylaldehyde;

203-453-4

107-02-8

Prop-2-enal

0.05

0.02

0.12

0.05

-

203-470-7

107-18-6

Allyl alcohol

4.8

12.1

skin

203-473-3

107-21-1

Ethylene glycol

skin

203-481-7

107-31-3

Methyl formate

skin

203-539-1

107-98-2

1-Methoxy-2-propanol

skin

203-545-4

108-05-4

Vinyl acetate

17.6

2

skin

203-550-1

108-10-1

4-Methylpentan-2-one

-

203-576-3

108-38-3

skin

m-Xylene

203-585-2

108-46-3

Resorcinol

-

-

skin

2-Methoxy-1-

203-603-9

108-65-6

methylethyl acetate

skin

Mesitylene

203-604-4

108-67-8

(Trimethylbenzes)

-

-

-

203-625-9

108-88-3

Toluene

skin

203-628-5

108-90-7

Monochlorobenzene

-

203-631-1

108-94-1

Cyclohexanone

8

81.6

skin

203-632-7

108-95-2

Phenol

skin

203-692-4

109-66-0

Pentane

-

-

-

203-713-7

109-86-4

2-Methoxyethanol

-

-

-

skin

203-716-3

109-89-7

Diethylamine

-

203-726-8

109-99-9

Tetrahydrofuran

skin

203-737-8

110-12-3

5-Methylhexan-2-one

-

-

-

203-745-1

110-19-0

Isobutyl acetate

-

203-767-1

110-43-0

Heptan-2-one

skin

203-772-9

110-49-6

2-Methoxyethyl acetate

-

-

-

skin

203-777-6

110-54-3

n-Hexane

-

-

-

203-788-6

110-65-6

But-2-yne-1,4-diol

0.5

-

-

-

-

203-804-1

110-80-5

2-Ethoxyethanol

-

-

skin

203-806-2

110-82-7

Cyclohexane

-

-

-

203-808-3

110-85-0

Piperazine

0.1

-

0.3

-

-

203-809-9

110-86-1

Pyridine

-

-

-

203-815-1

110-91-8

Morpholine

-

203-839-2

111-15-9

2-Ethoxyethyl acetate

-

-

skin

203-905-0

111-76-2

2-Butoxyethanol

skin

2-(2-

203-906-6

111-77-3

Methoxyethoxy)ethanol

1

-

-

skin

203-933-3

112-07-2

2-Butoxyethyl acetate

skin

2-(2-

203-961-6

112-34-5

Butoxyethoxy)ethanol

5

101.2

-

204-065-8

115-10-6

Dimethylether

-

-

-

204-428-0

120-82-1

1,2,4-Trichlorobenzene

15.1

37.8

skin

204-469-4

121-44-8

Triethylamine

8.4

12.6

skin

204-633-5

123-51-3

Isoamyl alcohol

-

204-658-1

123-86-4

n-Butyl acetate

-

204-661-8

123-91-1

1,4-Dioxane

-

-

-

204-662-3

123-92-2

Isopentylacetate

-

204-696-9

124-38-9

Carbon dioxide

-

-

-

204-697-4

124-40-3

Dimethylamine

3.8

9.4

-

204-825-9

127-18-4

Tetrachloroethylene

skin

N,N-

204-826-4

127-19-5

Dimethylacetamide

skin

205-438-8

140-88-5

Ethyl acrylate

-

205-480-7

141-32-2

n-Butyl acrylate

-

205-483-3

141-43-5

2-Aminoethanol

2.5

7.6

skin

205-500-4

141-78-6

Ethyl acetate

-

205-563-8

142-82-5

-

-

-

n-Heptane

Sodium cyanide (as

205-599-4

143-33-9

cyanide)

-

-

skin

205-634-3

144-62-7

Oxalic acid

-

-

-

-

Potassium cyanide (as

205-792-3

151-50-8

cyanide)

-

-

skin

206-992-3

420-04-2

Cyanamide

0.58

-

-

skin

207-069-8

431-03-8

Diacetyl; Butanedione

0.07

0.02

0.36

0.1

-

207-343-7

463-82-1

Neopentane

-

-

-

1,2,3-

208-394-8

526-73-8

Trimethylbenzene

-

-

-

208-793-7

541-85-5

5-Methylheptan-3-one

-

210-866-3

624-83-9

Methyl isocyanate

-

-

-

0.02

-

210-946-8

626-38-0

1-Methylbutyl acetate

-

211-047-3

628-63-7

Pentyl acetate

-

211-128-3

630-08-0

Carbon monoxide

-

n-Methyl-2-

212-828-1

872-50-4

pyrrolidone

skin

10 )

4( 10 )

215-137-3

1305-62-0

Calcium dihydroxide

1(

-

-

-

1( 10 )

4( 10 )

215-138-9

1305-78-8

Calcium oxide

-

-

-

Diphosphorus

215-236-1

1314-56-3

pentaoxide

-

-

-

-

Diphosphorus

215-242-4

1314-80-3

pentasulphide

-

-

-

-

215-293-2

1319-77-3

Cresols (all isomers)

-

-

-

Xylene, mixed

215-535-7

1330-20-7

isomers, pure

skin

Tert-Butyl methyl

216-653-1

1634-04-4

ether

183.5

-

222-995-2

3689-24-5

Sulphotep

0.1

-

-

-

skin

231-116-1

7440-06-4

Platinum (metallic)

-

-

-

-

231-131-3

7440-22-4

Silver, metallic

0.1

-

-

-

-

Silver (soluble

231-131-3

compounds as Ag)

0.01

-

-

-

-

231-195-2

7446-09-5

Sulphur dioxide

1.3

0.5

2.7

-

0.02( 9

231-484-3

7580-67-8

Lithium hydride

-

-

)

-

-

231-595-7

7647-01-0

Hydrogen chloride

-

231-633-2

7664-38-2

Orthophosphoric acid

-

-

-

231-634-8

7664-39-3

Hydrogen fluoride

1.5

1.8

2.5

-

231-635-3

7664-41-7

Ammonia, anhydrous

-

Sulphuric acid mist

231-639-5

7664-93-9

( 11 )( 12 )

0.05

-

-

-

-

231-714-2

7697-37-2

Nitric acid

-

-

2.6

-

231-778-1

7726-95-6

Bromine

0.7

0.1

-

-

-

231-954-8

7782-41-4

Fluorine

1.58

3.16

-

231-959-5

7782-50-5

Chlorine

-

-

1.5

0.5

-

231-977-3

7783-06-4

Hydrogen sulphide

-

231-978-9

7783-07-5

Dihydrogen selenide

0.07

0.02

0.17

0.05

-

232-260-8

7803-51-2

Phosphine

0.14

0.1

0.28

0.2

-

Pyrethrum (purified of

232-319-8

8003-34-7

sensitising lactones)

-

-

-

-

233-046-7

10025-87-3

Phosphoryl trichloride

0.064

0.01

0.12

0.02

-

Phosphorus

233-060-3

10026-13-8

pentachloride

-

-

-

-

233-113-0

10035-10-6

Hydrogen bromide

-

-

6.7

-

Nitrogen

monoxide( 13 )

233-271-0

10102-43-9

2.5

-

-

-

233-272-6

10102-44-0

Nitrogen dioxide

0.96

0.5

1.91

-

247-852-1

26628-22-8

Sodium azide

0.1

-

0.3

-

skin

(2-Methoxy-

methylethoxy)-

252-104-2

34590-94-8

propanol

-

-

skin

Terphenyl,

262-967-7

61788-32-7

hydrogenated

-

620-11-1

3-Pentylacetate

-

625-16-1

Amylacetate, tert

-

Fluorides, inorganic

2.5

-

-

-

-

Barium (soluble

compounds as Ba)

0.5

-

-

-

-

Chromium Metal,

Inorganic Chromium

-

-

-

-

(II) Compounds and

Inorganic Chromium

(III) Compounds

(insoluble)

Tin (inorganic

compounds as Sn)

-

-

-

-

Mercury and divalent

inorganic mercury

compounds including

0.02

mercuric oxides and

mercuric chloride

(measured

as mercury) ( 14 )

Manganese and

inorganic manganese

0.2 ( 9 )

compounds (as

0.05( 10 )

manganese)

( 1 ) EC No: European Community (EC) number, the numerical identifier for substances within the European Union.

( 2 ) CAS No: Chemical Abstract Service Registry Number.

( 3 ) A skin notation assigned to the occupational exposure limit value indicates the possibility of significant uptake

through the skin.

( 4 ) Measured or calculated in relation to a reference period of eight-hours as a time-weighted average.

( 5 ) Short-term exposure limit (STEL). A limit value above which exposure should not occur and is related to a 15-

minute period, unless otherwise specified.

( 6 ) mg/m 3 : milligrams per cubic metre of air at 20 °C and 101.3 KPa.

( 7 ) ppm: parts per million by volume in air (ml/m 3 ).

( 8 ) Short-term exposure limit value in relation to a reference period of 1 minute.

( 9 ) Inhalable fraction.

( 10 )Respirable fraction.

( 11 )When selecting an appropriate exposure monitoring method , account should be taken of potential limitations

and interferences that may arise in the presence of other sulphur compounds.

( 12 )The mist is defined as the thoracic fraction.

( 13 )Established in accordance with the Annex to Directive.

( 14 )During exposure monitoring for mercury and its divalent inorganic compounds, account should be taken of

relevant biological monitoring techniques that complement the OELV.

( 15 )During exposure monitoring, account should be taken of relevant biological monitoring values as suggested by

the Scientific Committee on Occupational Exposure Limits for Chemical Agents (SCOEL).".

€0.63