NYC 9/11 Public Portal Document
TEM Asbestos (air) Count Sheet
Client Name: NYC BOE Volume (liters): 1840
Lab Group #: 6685 FUterT\Ee2FilterArea; MCE 385 mm"
Lab Sample #: 9 Grid Opening Size: 0.01124
Client Sample #: 09 Area Examined: 0.04496 mm"
GRIB BOX: Magnification: 20,000
GRID ID: Accelerating Voltage: 100 KeV
# Grid Openings: 4 Analysis Date: 2/15/02
Analysis Performed By: CP
ROMAN PEYSAKHOV
GO. Structure Structure Type Length ID of Structure Norv EDS
No >=05 p T~>=5|J . Amphibole Nonasb Ambig/ND
(Nonadb
F B C M Chrys Elements)
No Goord <5p
'VfS JLV
Struct = > 0.5|u > 5:1 Aspect Ratio Grid acceptance:
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 >5m
•/= EDS spectrum conforming to laboratory holes or opaque areas
identification criteria observed Chrysotile
AMPHIBOLES Amphibole
F = Single Fiber Amosite
B = Bundle (<3 fibers <1 liber diameter apart Crocidolite
Ambiguous
C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos
Tremolite
M = Matrix
Actinolite Nou-Identified
NSD = No Structures Detected
CONFIDENTIAL, CITY_21MC1OO_OO3433711
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000175910
OCR can misread numbers and units. Confirm readings against the page image before using them.