NYC 9/11 Public Portal Document
TEM Asbestos (air) Count Sheet
Client Name: NYC BOE Volume (liters): 1840
Lab Group #: 7597 Filter Type / Filter Area: MCE 385 mm^
Lab Sample #: 8 Grid Opening Size: 0.01124
Client Sample #: 08 Area Examined: 0.04496
GRID BOX: Magnification: 20,000
GRID ID: Accelerating Voltage: too KeV
# Grid Openings: 4 Analysis Date: 5/1/02
Analysis Performed By: a /
ROMAN PEYSAKHOV
f
s
GO. Structure Structure Type Length ID of Structure N or EDS
No (Nonadb
F B C M >=05 M i '=5p Chrys Amphibole Nonasb Ambig/ND
No Coord <5p Elements)
-4__
___
___
Struct = > 0.5(1 >5:1 Aspect Ratio Grid acceptance:
'J= 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 overtapped grid squares <5% F B C M >5u
7= 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 j
Actinolite
NSO = No Structures Detected
CONFIDENTIAL, CITY_21MC100_003471407
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000177161
OCR can misread numbers and units. Confirm readings against the page image before using them.