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DME OELs:

DME OELs 2006

N - O

SUBSTANCE

FORMULA

CAS
Numbers

OEL

OEL-STEL/ OEL-C

Notes

ppm

mg/m³

ppm

mg/m³

Naled

C₄H₇Br₂Cl₂O₄P

300-76-5

-

3

-

6

-

Naphthalene

C₁₀H₈

91-20-3

10

50

15

75

-

1,5-Naphthalene diisocyanate

C₁₀H₆(NCO)₂

3173-72-6

-

0,02

-

0,07

Sen

*Nickel

Ni

7440-02-0
(metal)

-

0,5

-

-

-

Nickel carbonyl [as Ni]

Ni(CO)₄

13463-39-3

-

-

0,1

0,24

-

Nickel, organic compounds [as Ni]

Ni

-

-

1

-

3

-

*Nickel, inorganic compounds [as Ni]

Ni

-

-

   soluble compounds

-

0,1

-

-

-

   insoluble compounds

-

0,5

-

-

-

_-

Nicotine

C₁₀H₁₄N₂

54-11-5

-

0,5

-

1,5

Sk

Nitrapyrin

ClC₅H₃NCCl₃

1929-82-4

-

10

-

20

-

Nitric acid

HNO₃

7697-37-2

2

5

4

10

-

Nitric oxide

NO

10102-43-9

25

30

35

45

-

4-Nitroaniline

NO₂C₆H₄NH₂

100-01-6

-

6

-

-

Sk

Nitrobenzene

C₆H₅NO₂

98-95-3

1

5

2

10

Sk

Nitroethane

C₂H₅NO₂

79-24-3

100

310

-

-

-

Nitrogen dioxide

NO₂

10102-44-0

3

5

5

9

-

Nitrogen monoxide

NO

10102-43-9

see Nitric oxide

Nitrogen trifluoride

NF₃

7783-54-2

10

30

15

45

-

Nitroglycerine [NG]

CH₂NO₃CHNO₃CH₂NO₃

55-63-0

0,05

0,5

0,2

2

Sk [06]

Nitromethane

CH₃NO₂

75-52-5

20

50

-

-

[06]

1-Nitropropane

C₃H₇NO₂

108-03-2

25

90

-

-

-

*2-Nitropropane

(CH₃)₂CH(NO₂)

79-46-9

5

18

-

-

-

Nitrotoluene, all isomers

CH₃C₆H₄NO₂

-

2

12

10

60

Sk [06]

Nitrous oxide

N₂O

10024-97-2

50

90

-

-

[06]

Octachloronaphtalene

C₁₀Cl₈

2234-13-1

-

0,1

-

0,3

Sk

n-Octane

CH₃(CH₂)₆CH₃

111-65-9

300

1450

375

1800

-

Oil mist, mineral

-

-

-

1

-

10

[06]

Orthophosphoric acid

H₃PO₄

-

see Phosphoric acid

Osmium tetraoxide [as Os]

OsO₄

20816-12-0

0.0002

0,002

0,0006

0,006

-

Oxalic acid

COOHCOOH.2H₂O

144-62-7

-

1

-

2

-

Oxalonitrile

(CN)₂

460-19-5

see Cyanogen

Oxygen

O₂

7782-44-7

Not less than 19%

-

2,2’-Oxydiethanol

(CH₂CH₂OH)₂O

111-46-6

see Diethylene glycol

Ozone

O₃

10028-15-6

-

-

0,2

0,4

-