Vol. 1, Issue 20 (Jun 03) COSHH Revisited

We have issued an update “NEWS-BRIEF” on the “Control of Substances Hazardous to Health Regulations”, in an earlier edition of our NEWS BRIEF. The regulations have been updated again in December 2002 with some changes in requirements. It is now cited as the fourth edition.

The re-issued Approved Code of Practice now concentrates on methods of complying with goal-setting, regulations.

The regulations contain the provisions of three sets of earlier regulations – all now revoked.

Appendix three of the ACOP and Guidance now covers the control of substances that cause occupational asthma. Under this section in the ACOP, is further guidance and information to back-up the body of the revised requirements.

There is also now a section on “Fit testing of face pieces”. This covers the scope of issuing suitable face masks (respiratory protective equipment – RPE) and the requirement to ensure that these masks provide a good seal to the user.

This is achieved by the user being clean shaven, the RPE of the correct size and shape to fit the face of the user.

To ensure that it is compatible with other personal protective equipment, such as eye protection, hearing and head protection.

Employers should also provide certain facilities for washing, changing, eating and drinking etc for hygiene purposes.

This may be via co-operation and co-ordination with others in the workplace or by the provisions of suitable mobile welfare equipment.

The use of the unmarked (markings include CE marks and/or manufactured to EN491 2001) face masks (RPE) must be discontinued. These type of masks are general available at local DIY stores, they must now be considered to be ineffective in the workplace.

Basic Regulation list.

Regulation 6 Assessment if the risk is to health created by work involving substances hazardous to health.

Regulation 7 Prevention or control of exposure to substances hazardous to health.

Regulation 8 Use of control measures.

Regulation 9 maintenance examination and testing of control measures.

Regulation 10 monitoring exposure at the workplace.

Regulation 11 health surveillance

Regulation 12 information, instruction and training for persons who may be exposed to substances hazardous to health.

Regulation 13 Arrangements to be in place to deal with accidents, incidents and emergencies.

The regulations do not take into account working with lead or asbestos, these both have separate requirements.

Substances which are capable of producing effects on health as a result of their explosive and/or flammable properties are not covered. They are subject to the requirements of the “Dangerous Substances and Explosive Atmospheres Regulations 2002” (DSEAR).

Freebies on the web.

Due to several requests to provide help, guidance and assistance to many existing and new clients, we have now increased our presence on the web.

We have now produced a number of selected documents that can be down- loaded free from the web.

They include: –

Numbers of pro-forma assessments such as;

  • PAT testing.
  • Manual handling.
  • Fire.
  • Lifting operations.
  • Display Screen equipment.
  • Young Persons.
  • Shift workers.

Information on:

  • CDM “Construction (Design and Management) Regulations”.
  • A copy of an F10 notification.
  • The general requirements of the “Construction (Health, Safety and Welfare) Regulations”.
  • Guidance on HAVS – hand arm vibration syndrome.

A copy of proposed draft regulations for “Working at Height”.

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Wednesday, June 10th, 2009 news Comments Off on Vol. 1, Issue 20 (Jun 03) COSHH Revisited

Legionella – Legionnaires Diseases.

In general, conditions, which permit legionella to proliferate and aerosol to be created, should be avoided.

Where, this is not practical, the risk should be minimised and controlled by reducing the release of water droplets and controlling the water quality. In relation to all water systems, proliferation may be avoided by: –

  1. Protect systems against external contamination, such as providing lids to storage tanks.
  2. Avoid water stagnation by keeping the pipe lengths as short as possible and tanks no larger than is necessary. Eliminate “dead legs” wherever possible.
  3. Maintain design temperature in both hot and cold water systems by providing efficient heating for hot water systems and adequate insulation for all pipes and fittings.
  4. Keep systems clean, tanks and other items need to be readily accessible for cleaning.
  5. Maintaining effective management of the services.

Control strategy features.

These have been identified by the “Health and Safety Executive” “Legionnaires’ Disease – The control of legionella bacteria in water systems” Approved code of practice and guidance reference L8.

  • Establish control level. The effective level of the control parameters (such as temperature, concentration of biocide etc) will need to be identified.
  • Achieve Control Level. The system should be capable of delivering and maintaining the effective level. (The rate of addition of some components may need to be varied as the rate of water usage changes).
  • Ensure Control Level. There should be some means of measuring the parameter to ensure that it is being achieved throughout the system.
  • Records. To be kept of the procedures/precautions.

Control Measures.

The traditional approach is that hot water should be stored at 60o C and distributed so that, after one minute of running a temperature of at least 50o C is attained at outlets. Cold water storage and distribution should be at 20o C or below.

At water temperature of 43o C and above there is a risk from scalding. Where a significant scalding risk has been identified the use of thermostatic mixing valves at baths and showers should be considered to reduce the water temperature. These need to be placed as close as possible to the point of use.

For most systems routine inspection and maintenance will usually be enough to ensure control if the following checks are made and appropriate remedial action taken when necessary.

  • Water temperature at calorifier / cylinders / hot water heaters.
  • Water temperature at a representative number of outlets.
  • Condition and cleanliness of storage tanks.
  • Condition of calorifier / cylinders / hot water heaters.
  • Condition of accessible pipe-work and insulation.
  • Operation of thermostatic mixing valves.

We can provide.

Legionnaires Disease, risk assessment as required by “The control of legionella bacteria in water systems” Approved Code of Practice and Guidance (ACOP).

Sampling for legionella and water quality, bacteriological sampling and inspections, checks, reports and analysis.

Information, instruction and training programmes, reviews of current practices, advice and re-assurance.

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Tuesday, June 9th, 2009 services Comments Off on Legionella – Legionnaires Diseases.