At Asbestos Removal 247, we frequently encounter customers who are perplexed and annoyed by the various pieces of information they receive from inspection agencies about the amount of sampling that is required. “How many asbestos samples is the proper amount?”
This begs the question. Too few samples can get you in trouble, while too many can eat up your cash unnecessarily. The standards for
asbestos sampling are discussed in this blog.
Because of its heat and corrosion resistance, as well as its durability, asbestos has been employed in a variety of applications in the past.
As it became obvious that any level of asbestos exposure is dangerous to humans, rules were enacted to limit people’s exposure to this
toxic chemical. This involves partially prohibiting its manufacturing, enacting legislation about safe management and construction
methods, and raising public awareness about its presence. Asbestos is still present in buildings built before the restrictions were enacted,
and it can be found in some consumer products.
Take more than one mouthful of a chocolate chip cookie to avoid the fox guarding the henhouse!
When Is It Necessary to Take Asbestos Samples?
Renovation or destruction of structures, as well as any other action that may disrupt suspicious asbestos-containing material, necessitates
an inspection by certified experts to determine the appropriate work methods. OSHA may demand these inspections regardless of the
activity, and the EPA requires them for K-12 schools on a regular basis.
Who is responsible for asbestos sampling?
“The fox watching the henhouse” is a phrase that many of us are familiar with. When asbestos abatement contractor businesses decide to
do their own testing, this comes into play. The EPA has a conflict-of-interest rule that requires the inspection of schools be completed by
consultants who are not affiliated with the abatement contractor. Furthermore, jurisdictions require that anyone performing asbestos
assessments be qualified and licensed.Only an experienced testing organisation, ideally with a Certified Industrial Hygienist (CIH) on staff,
should conduct sampling, and the company should be able to demonstrate confirmation of professional liability (errors and omissions)
Rules for Asbestos Sampling
During an asbestos evaluation, the EPA, along with other regulatory agencies (depending on region), requires that each homogeneous
group of suspect asbestos-containing material be inventoried and classified.This includes things of various shapes, colours, and sizes.
After that, a professional inspector must take independent samples of each type of material or assume that the material includes
Here’s a rundown of how those samples should be classified and collected:
Flooring, ceiling tile, caulking, mastics, wallboard, shingles, glazing, grout, and other items are included in the “Miscellaneous” category.
Two to three samples of each homogeneous group are typically required from this category. At least three samples are required in some
The “Thermal Systems Insulation” category comprises materials used to insulate boilers, pipelines, ducts, and tanks in order to prevent
heat loss. Except for small quantity patches, three samples from each group are usually required for this category.
Materials that have been sprayed on or otherwise applied to surfaces, such as those for acoustical or fireproofing reasons, are included in
the “surfacing” materials category. Depending on the amount of material applied, more sampling may be required, which could include up
to nine random samples per group.
Consider the chocolate chip cookie analogy if you’re wondering why more than one sample of a homogeneous group is required. You
might not get a single chocolate chip when you bite into a chocolate chip cookie, or you might get numerous ones. The same is true for
asbestos-containing materials: depending on the manufacturing process or analytical method constraints, you may or may not get what
you’re searching for with just one sample. Furthermore, depending on the type of material, multiple types of analysis and analytical
techniques may be required to meet all regulatory criteria and industry standards. If your asbestos removal company also performs the
inspection and just takes one or two samples of all the components, you may have a problem.
The above rules are merely a summary. Finally, only a qualified, accredited inspector from an independent firm can determine what is
appropriate for asbestos sampling.
Do you have any questions about asbestos sampling methods and regulations?
Asbestos Removal 247 has thirty years of asbestos inspection experience. Our understanding of applicable regulations, ability to assess an
environment and the materials therein, and extensive experience with sample methodologies enable us to stick to our concept of offering
the most efficient services while meeting our clients’ regulatory obligations. To read more about our asbestos removal services, click here.
Contact us if your looking for Asbestos Testing services in Glasgow