MoD Health & Safety Handbook 

JSP 375 Vol 2 

39/23/24/25 

Toxic: danger of very serious irreversible effects through inhalation, in contact with skin 

and if swallowed  

39/23/25 

Toxic: danger of very serious irreversible effects through inhalation and if swallowed  

39/24   

Toxic: danger of very serious irreversible effects in contact with skin  

39/24/25 

Toxic: danger of very serious irreversible effects in contact with skin and if swallowed  

39/25   

Toxic: danger of very serious irreversible effects if swallowed  

39/26   

Very Toxic: danger of very serious irreversible effects through inhalation  

39/26/27 

Very Toxic: danger of very serious irreversible effects through inhalation and in contact 

with skin  

39/26/27/28 

Very Toxic: danger of very serious irreversible effects through inhalation, in contact with 

skin and if swallowed  

39/26/28 

Very Toxic: danger of very serious irreversible effects through inhalation and if 

swallowed  

39/27   

Very Toxic: danger of very serious irreversible effects in contact with skin  

39/27/28 

Very Toxic: danger of very serious irreversible effects in contact with skin and if 

swallowed  

39/28   

Very Toxic: danger of very serious irreversible effects if swallowed  

40/20   

Harmful: possible risk of irreversible effects through inhalation  

40/20/21 

Harmful: possible risk of irreversible effects through inhalation and in contact with skin  

40/20/21/22 

Harmful: possible risk of irreversible effects through inhalation, in contact with skin and if 

swallowed  

40/20/22 

Harmful: possible risk of irreversible effects through inhalation and if swallowed  

40/21   

Harmful: possible risk of irreversible effects in contact with skin  

40/21/22 

Harmful: possible risk of irreversible effects in contact with skin and if swallowed  

40/22   

Harmful: possible risk of irreversible effects if swallowed  

42/43   

May cause sensitisation by inhalation and skin contact  

48/20 

Harmful: danger of serious damage to health by prolonged exposure through inhalation  

48/20/21 

Harmful: danger of serious damage to health by prolonged exposure through inhalation 

and in contact with skin  

48/20/21/22 

Harmful: danger of serious damage to health by prolonged exposure through inhalation, 

in contact with skin and if swallowed  

48/20/22 

Harmful: danger of serious damage to health by prolonged exposure through inhalation 

and if swallowed  

48/21 

Harmful: danger of serious damage to health by prolonged exposure in contact with skin  

48/21/22 

Harmful: danger of serious damage to health by prolonged exposure in contact with skin 

and if swallowed  

48/22 

Harmful: danger of serious damage to health by prolonged exposure if swallowed  

48/23 

Toxic: danger of serious damage to health by prolonged exposure through inhalation  

48/23/24 

Toxic: danger of serious damage to health by prolonged exposure through inhalation 

and in contact with skin  

48/23/24/25 

Toxic: danger of serious damage to health by prolonged exposure through inhalation, in 

contact with skin and if swallowed  

48/23/25 

Toxic: danger of serious damage to health by prolonged exposure through inhalation 

and if swallowed  

48/24/ 

Toxic: danger of serious damage to health by prolonged exposure in contact with skin  

48/24/25 

Toxic: danger of serious damage to health by prolonged exposure in contact with skin 

and if swallowed  

48/25 

Toxic: danger of serious damage to health by prolonged exposure if swallowed  

50/53   

Long term adverse effects in the aquatic environment  

51/53   

Long term adverse effects in the aquatic environment  

52/53 

Harmful to aquatic organisms, may cause long term adverse effects in the aquatic 

environment  

Leaflet 5 Annex H 

April 2003 

 Page 

9