International Chemical Control Toolkit

ILO is a specialized agency of the United Nations

Identification of the Inhalation Hazard Group

If you know the EU R-phrases associated with your substance, use the second column of the table.
If you know the GHS class/level values associated with your substance, use the third column of the table.
If you don't know either of the two, try to find relevant information from the International Chemical Safety Cards (ICSC) or other sources (see for example the CIS collection of ICSC cards).
Check the phrases or class/level values of your substance against those in the cells of the first row of the table.
If you find a match, click on the head text (Group E).
If not, do the same for the other four rows, from top to bottom.
If you could not allocate a value in the whole table, click on the head text of the last row (Group A).

Hazard Group	EU R-phrases	GHS class/level values
Group E	R42 R45 R46 R49 R68	Mutagenicity class 1 or 2 Carcinogenicity class 1 Respiratory sensitisation
Group D	R48/23/24/25 R26/27/28 R39/26/27/28 R40 Carc.Cat.3 R60 R61 R62 R63 R64	Acute toxicity (lethality), any route, class 1 or 2 Carcinogenicity class 2 Repeated exposure toxicity, any route, class 1 Reproductive toxicity class 1 or 2
Group C	R23/24/25 R34 R35 R37 R39/23/24/25 R41 R43 R48/20/21/22	Acute toxicity (lethality), any route, class 3 Acute toxicity (systemic), any route, class 1 Corrosivity, subclass 1A, 1B or 1C Eye irritancy class 1 Respiratory system irritancy Skin sensitisation Repeated exposure toxicity, any route, class 2
Group B	R20/21/22 R40/20/21/22 R33 R67	Acute toxicity (lethality), any route, class 4 Acute toxicity (systemic), any route, class 2
Group A	R36 R38 R65 R66	Acute toxicity (lethality), any route, class 5 Skin irritancy class 2 or 3 Eye irritancy class 2

Updated by AS (CIS), approved by PB (SafeWork). Last modification: 20.06.2006.