NYC 9/11 Public Portal Document
TEM Asbestos (air) Count Sheet
Client Name: NY’C BOE Volume (liters): 1960
Lab Group #: 6199 Filter Type / Filter Area: MCE 385 mm-
Lab Sample #: 21 GridOpening Size: 0.01124
Client Sample #: 21 Area Examined: 0.04496 mm^
GRID BOX: Magnification: 20,000
GRID ID: Accelerating Voltage: 100 KeV
ft Grid Openings: 4 Analysis Date: 12,'2 7/01
Analysis Performed By.
MARK PEYSAKHOV
GO, Structure Structure Type Length ID of Structure Nor EDS
(Nonadb
Nc F B C M >=05 u >=5|j Chrys Amphibole Nonasb Ambig/ND
No Coord <5pi Elements)
Srruc = > 0,5p > 5:1 Aspect Ratio Grid acceptance:
\= Fositive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals
laboratory identification criteria observed <10% particulate coverage >50% coverage ale
least 20 unfolded or overlapped grid squares <5% F B i C S M >6p
/= EDS spectrum contorming to laboratory holes or opaque areas
Identification criteria observed Chrysotile
' amphiboles , Amphibole
F : Single Fiber Amosite
E = Sundie (<3 fibers <1 fiber diameter apart Crocidolite
Ambiguous
C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos
Tremolite
M = Matrix ! Non-Identified
Actinolite I
MSD = Mo Structures Detected ......
CITy_21MC100_003105119
NYC-WTC_000184442
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