Lead Before Work Or Demolition Diagnosis
The purpose is to identify the presence of materials, products or coatings containing lead in the building.
What is the purpose of the lead diagnosis before work or demolition?
The purpose is to identify the presence of materials, products or coatings containing lead in the building, the equipment, the components of the building as well as on the external elements and also to measure the concentration of lead and its location.
This research can be done by destructive sampling. The diagnosis must be available for consultation by all the trades involved on the site.
Who is concerned and when must it be done ?
The owner (or his representative) must, as soon as the consultation phase is over, transmit the lead diagnosis to all the companies working on the site.
Why do we have to do a lead survey ?
The objective is to detect its presence in order to protect the people involved in the work or demolition.
Note: as lead-based compounds were used until 2003, it is strongly recommended to carry out lead detection before work or demolition, even for recent buildings, structures or equipment.
What does the survey report consist of?
The report of location including by room :
- the list and the results of the measurements (in mg/cm²) carried out
- a schematic plan of the building with the presence of diagnosis units (DU)
- the classification of the diagnosis units (DU) in relation to the threshold
- the list of metallic lead elements identified
- photos of materials containing lead.
How is the mission carried out?
Before any intervention on site, we proceed to a meticulous study of the elements transmitted by the client (plans, history of the building, program and perimeter of the work). Then we carry out a site visit to determine the Diagnostic Units (DU), such as walls, ceilings, conduits, pipes….. concerned by the scope of the work.
For each diagnostic unit, we carry out lead concentration measurements. They are carried out by an X-ray fluorescence machine. The diagnostic units are listed according to their concentration.
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Regulations And Risks
Labor Code: general principles of prevention, articles L4121-2; prevention of the risk of exposure to carcinogens, mutagens and agents toxic to reproduction, articles R4412-59 et seq., articles R4412-152 and R4412-156 to R4412-161.
Order of August 19, 2011 on the report of risk of exposure to lead (CREP). Standard NF X 46-030 April 2008 – Protocol for the realization of the report of risk of exposure to lead (CREP). Standard NF X 46 031 April 2008 relating to the chemical analysis of paints for the search of the acid-soluble fraction of lead.
Risks in case of non-compliance with the law
A fine of 3,750 euros for individuals and 18,750 euros for legal persons if employees have been exposed to lead, the amounts indicated are applicable per employee concerned (article L4741-1 and following of the labor code).
Criminal liability can also be incurred according to other legal texts (articles 223-1, 221-6 and 222-19 of the Criminal Code).
The diagnostician should not comment on the state of degradation of the units or on the level of risk presented by the measured values. It is therefore up to the owner and the companies intervening on the site to define the risk prevention and hygiene measures as well as the least polluting means of intervention. In case of absence of the lead diagnosis, the building site can be stopped by the work inspection.