NYC 9/11 Public Portal Document
TEM Asbestos fair) Count Sheet
Client Name: NYC BOE Volume (liters): 1840
Lab Group #: 6492 Filter Type / Filter Area: MCE 385 mm^
Lab Sample #: 12 Grid Opening Size: 0.01124
Client Sample #: 12 Area Examined: 0,04496 mm^
GRID BOX: Magnification: 20,000
GRID ED: Accelerating Voltage: 100 KeV
# Grid Openings: 4 Analysis Date: 1/28/02
Analysis Performed By:
MARKPEYSAKHOV
GO. Structure Structure Type Length ID of Structure NorN EDS
(Nonadb
No F B C M >=05 p >=5p Chrys Amphibole Nonasb Ambig/ND
No Coord <5p Elements)
■2,
c?
Struct = > 0.5g _> 5:1 Aspect Ratio Grid acceptance:
a/= 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 >5p
'<1= 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
CONFIDENTIAL, CITY_21MC100_0 03471662
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000177235
OCR can misread numbers and units. Confirm readings against the page image before using them.