NYC 9/11 Public Portal Document
TEM Asbestos (air) Count Sheet
Client Name: NYC BOE Volume (liters): 1840
Lab Group #: 6453 Filter Tvpe / Filter Area: MCE 385 mm"
Lab Sample #: 3 Grid Opening Size: 0.01124
Client Sample #: 3 Area Examined: 0.04496 mm"
GRID BOX: Magnification: 20,000
GRID ID: Accelerating Voltage: too KeV
# Grid Openings: 4 Analysis Date: 1/26/02
Analysis Performed By:
MARK PEYSAKHOV
GO Structure Structure Type Length ID of Structure N or v EDS
(Nonadb
No F B C M >=05 p Chrys Amphibole Nonasb Ambig/ND
No Coord <5u Elements)
Struct = > 0.5p >5:1 Aspect Ratio Grid acceptance:
<= Positive diffraction pattern properties conforming to ‘^0% undissolved filter, overtapped or folded Totals
laboratory identification criteria observed 10% particulate coverage >50% coverage ate
'/= EDS spectrum conforming to laboratory
least 20 unlolded or overlapped grid squares <5% F B c ! M >5p
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
CONFIDENTIAL, CITY_21MC100_003467530
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000180784
OCR can misread numbers and units. Confirm readings against the page image before using them.