2] and a third party must collect dust wipe samples
verified through laboratory analysis; this inspection is called a "clearance" test.
To further confirm the success of cleaning, wipe samples
were taken in randomly selected interior surfaces of representative equipment, ducts, and stacks.
We obtained swab and wipe samples
from clean, nonporous surfaces and vacuum samples from large or dusty nonporous or porous surfaces (11).
were collected from floors, interior window sills, ductwork, furniture, and appliances using the American Society for Testing and Materials (ASTM) D 6480-05 procedures, "Wipe Sampling for Settled Asbestos" (ASTM, 2010) and analyzed by TEM by the independent laboratory.
However, results from HEPA vacuum sock and wipe samples
agreed poorly with the swab samples.
The average lead concentration from each wipe sample
was correlated with the XRF paint mode results at the same location.
obtained with sterile polyester/rayon pads, moistened with sterile water, were collected from various surfaces in the laboratory and in the adjacent office area, including desks, flooring, door knobs, BSCs, heating, ventilation, air-conditioning return air grills, and laboratory equipment (including the centrifuge and shaker used for processing environmental samples).
For example, a moist wipe sample
from a hard floor surface measures residue that can potentially transfer to hands, which can then be ingested via a hand-to-mouth process in children.
A relatively high concentration of spores was found in the sample collected on the overnight hot mail sorting bin (13,000 CFU/g), which was near the end of DBCS machine 5 that had a positive wipe sample
collected inside it but had not processed the contaminated letters addressed to the U.
Two wipe sample
sites and a hand sample were located near the entrance associated with the CCA-treated lumber.
At the residence of the index case, a wipe sample
taken on a carpet where the worker played with his children showed a lead surface concentration of 30 [micro]g/[ft.
2]), which is the most commonly utilized measure of lead contamination, was derived for each wipe sample