TEM Asbestos (air) Count Sheet
Client Name: ATC Volume (liters): 1300
Lab Group #: 6804 Filter Type / Filter Area: MCE 385 mm2
Lab Sample #: I Grid Opening Size: 0.01124
Client Sample #: I Area Examined: 0.06744 mm=
GRID BOX: £.5 7 Magnification: 20,000
GRID ID: 4j 5.11 Accelerating Voltage: 100 KeV
# Grid Openings: 6 Analysis Date: 2/24/02
Analysis Performed By:
ROMAN PEYSAKHOV
GO. Structure Structure Type Length ID of Structure N or EDS
No F B C (Nonadb j
M >O5 N >=5p ChryS Amphibole Nonasb Ambig/ND
No Coord <5yi Elements)
l - - 1J
J r~
Struct => 0.5µ > 5:1 Aspect Ratio Grid acceptance:
'l= Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals
laboratory identification criteria observed <10% particulate coverage >50% coverage ate
least 20 unfolded or overlapped grid squares <5% F B C M >5u
4= EDS spectrum conforming to laboratory holes or opaque areas
identification criteria observed Chrysotile
AMPHIBOLES Amphibole
F = Single Fiber Amosite
B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous
C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos
Tremolite
M = Matrix Non-Identified
Actinolite
NSD = No Structures Detected
NYC-WTC 000124328
OCR can misread numbers and units. Confirm readings against the page image before using them.
NYC-WTC_000124328Source: NYC Law Department, mirrored locally
EPA Region 2 letter regarding revised environmental work plan submission for two buildings including asbestos, health, and safety assessment components.