The data is based upon perlite products mined and processed at various locations throughout the world.
Does perlite insulation contain asbestos.
Vermiculite insulation product from the libby mine in montana is known to contain high levels of amphibolic asbestos.
The perlite institute offers a 2002 article confirming that perlite does not contain asbestos.
But perlite essentially a form of volcanic glass is not formed in the same way as vermiculite and is never found in the company of asbestos.
A separate study supported by the perlite institute also published in 2002 concludes that perlite is a safe product citing studies establishing.
Extracted from the mine between 1920 and 1990 this vermiculite insulation was sold mainly but not exclusively under the trademark zonolite attic insulation.
This report summarizes the results of the findings.
While breathing any.
Does perlite contain asbestos.
The raw vermiculite material taken from the mine was contaminated with asbestos.
If you re buying horticultural vermiculite sold in stores today then that vermiculite does not contain asbestos.
1 perlite institute is an industry association formed in 1949 to promote the use of perlite insulation materials and to conduct research about perlite.
Scientists with the united states geology survey usgs have created a hand held spectrometer to determine if vermiculite insulation contains deadly amphibole asbestos.
In the united states most of the vermiculite insulation containing asbestos was sourced from a mine near libby montana which was active until 1990.
Does vermiculite contain asbestos.
Before you tear open a bag of perlite you should put on safety glasses and a dust mask to protect your eyes and lungs from the perlite dust.
There was also a deposit of asbestos at that mine so the vermiculite from libby was contaminated with asbestos.
Does perlite contain asbestos.
Concerns about vermiculite contaminated with asbestos fibers prompted people to wonder whether if that wasn t also the case with perlite another expanded rock used to lighten gardening soils.
Insulation made from this material represents over 70 percent of the vermiculite insulation found in u s.
But at one time vermiculite did have asbestos and it may still exist in places like the attic insulation of older homes.
