NYC 9/11 Public Portal Document
TEM Asbestos (air) Count Sheet
Client Name: NYC BOE Volume (liters): 1920
Lab Group #: 6940 Filter Type / Filter Area: MCE 385 mm-
Lab Sample #: 11 Grid Opening Size: 0.01124
Client Sample #: 11 Area Examined: 0.04496 mm*
GRID BOX: Magnification: 20,000
GRID ID: Accelerating Voltage: 100 KeV
# Grid Openings: 4 Analysis Date: 3/5/02
Analysis Performed By:
MARK PEYSAKHOV
GO Structure Structure Type Length ID of Structure N or EDS
No (Nonadb
F B C M >=05 p Chrys Amphibole Nonasb Ambig/ND
No Coord <5p Elementi)
Struct = > O.Ou > 5:1 Aspect Ratio Grid acceptance:
9= 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 ovenapped grid squares <5% F C M j f..
V= EDS spectrum conforming to iacuratory
B
holes or opaque areas
identification criteria observed Chrysotile
1
AMPHIBOLES Amphibole
F = Single Fiber Amosite
B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous
C = Cluster (>3 Intersections! Anthopbiyllite Non-Asbestos
Tremolite
M = Matrix Noit-Identified
Actinolite
NSD = No Structures Detected i !
CONFIDENTIAL, CITY_21MC100_003468327
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000181327
OCR can misread numbers and units. Confirm readings against the page image before using them.