NYC 9/11 Public Portal Document
TEM Asbestos (air) Count Sheet
Client Name: NYC BOE Volume (liters): 1840
Lab Group #: 7203 . Filter Type / Filter Area: MCE 385 mm*
Lab Sample #: 14 Grid Opening Size: 0.01124
Client Sample #: 14 Area Examined: 0.04496 mm^
GRID BOX: Magnification: 20 000
GRID ID: Accelerating Voltage: 100 KeV
# Grid Openings: 4 Analysis Date: 3/25/02
Analysis Performed By:
ROMAN PEYSAKHOV
GO. Structure Structure Type Length ID of Structure NorN EDS
No >=05 M ■>=5p (Nonadb
F B C M Chrys Amphibole Nonasb Ambig/ND
Elements)
No Coord <5m
/(^--------------- --
-a-—
Struct = > O.Sp >5:1 Aspect Ratio Grid acceptance:
Positive diffraction pattern properties conforming to <50% undissoivsd filter, overlapped or folded Totals
la boratory identification criteria observed <10% particulate coverage >50% coverage ate
least 20 unfolded or overlapped grid squares <5% F B C M >5p
EDS spectrum conforming to laboratory holes or opaque areas,
identification criteria observed Chrysotile
^'amphiboles i 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_0 03470572
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000176599
OCR can misread numbers and units. Confirm readings against the page image before using them.