Changes to EH40/2005 occupational exposure limit values

On 21 August 2018, the European Commission’s fourth Directive on Indicative Occupational Exposure Limit Values (2017/164/EU) was implemented in Great Britain and Northern Ireland. This Directive requires Member States of the European Union to introduce domestic occupational exposure limits for the substances listed in the Annex to the Directive.

Additionally, the level of the domestic limit must take account of the indicative occupational exposure limit values (IOELVs). The Health and Safety Executive has approved new and revised workplace exposure limits (WELs) required to implement the fourth IOELV Directive.

 

There were new entries for the following substances:

  • 2-ethylhexan-1-ol

  • Acetic acid

  • Acrylic acid

  • Amitrole

  • But-2-yne-1,4-diol

  • Diacetyl

  • Glycerol trinitrate

  • Methyl formate

  • Nitroethane

  • Nitrogen dioxide

  • Nitrogen monoxide

  • Sulphur dioxide

  • Hydrogenated terphenyl

  • Tetraethyl orthosilicate

 

New 8-hour time-weighted averages (TWAs) were introduced for:

  • 2-ethylhexan-1-ol

  • Amitrole

  • But-2yne-1,4-diol

  • Calcium dihydroxide (respirable fraction)

  • Calcium oxide (respirable fraction)

  • Hydrogen cyanide (as cyanide)

  • Nitrogen monoxide

  • Tetraethyl orthosilicate

 

New 8-hour TWA and short-term exposure limits (STELs) were introduced for the following substances:

  • Acetic acid

  • Acrylic acid

  • Diacetyl

  • Glycerol trinitrate

  • Methyl formate

  • Nitrogen dioxide

  • Sulphur dioxide

  • Hydrogenated terphenyl

 

New skin notations have been added for the following substances:

  • 1,4-dichlorobenzene

  • Glycerol trinitrate

  • Methyl formate

  • Tetrachloroethylene

 

The following substances required reductions to the existing WELs:

  • 1,4-Dichlorobenzene

  • Acrolein

  • Bisphenol A

  • Carbon monoxide

  • Carbon tetrachloride

  • Manganese and inorganic manganese compounds

  • Methylene chloride (dichloromethane)

  • Potassium cyanide (as cyanide)

  • Sodium cyanide

  • Tetrachloroethylene

  • Vinylidene chloride

 

A STEL was introduced for:

  • Acetic acid

  • Acrylic acid

  • Calcium dihydroxide

  • Calcium oxide

  • Carbon tetrachloride

  • Diacetyl

  • Diphenyl ether

  • Glycerol trinitrate

  • Lithium hydride

  • Manganese and inorganic manganese compounds

  • Methyl formate

  • Nitroethane

  • Nitrogen dioxide

  • Potassium cyanide (as cyanide)

  • Sodium cyanide (as cyanide)

  • Sulphur dioxide

  • Hydrogenated terphenyl

  • Vinylidene chloride

 

The existing 8-hour TWA WEL was removed and the IOELV STEL was adopted for:

  • Lithium hydride


In line with this new release, the Alcumus Sypol technical team has made all necessary changes to our COSHH management system (CMS).  This means that all assessments containing the materials listed above will have been updated with their corresponding WEL automatically.

Mike Harris, Operations Manager at Alcumus Sypol, said the new legislation means that all businesses should be reviewing their COSHH assessments as a matter of urgency.

“Alcumus Sypol have been heavily involved in the WELs consultation process and have been watching developments with interest.  The announcement means that health and safety professionals need to ensure that they are fully aware of any impact this has on their existing COSHH assessments and take appropriate action as a matter of urgency.  The full legislative power of these changes came into force with immediate effect from August 21 and businesses are expected to be able to demonstrate compliance with the new exposure levels.

All 900 of Alcumus Sypol’s clients will have received notifications of any COSHH assessments that are impacted by the announcement.  They will have also received clear guidance on what they need to do to ensure that their processes are robust, compliant and, most importantly, protect their health of their workforce.”    
If you have any questions regarding the changes to the EH40 legislation, you can contact the Alcumus Sypol helpdesk on 01296 678464 or email cms.helpdesk@alcumusgroup.com.