NYC 9/11 Public Portal Document
TEM Asbestos (air) Count Sheet
Client Name: NYC BOE Volume (liters): 1944 ' ‘
Lab Group #: 7162 Filter Type / Filter Area: MCE 385 mm*
Lab Sample #: 6 Grid Opening Size: 0.01124
Client Sample #: 6 Area Examined: 0.04496 mm^
GRID BOX: Magnification: 20,000
GRID ID: Accelerating Voltage: 100 KeV
# Grid Openings: 4 Analysis Date: 3/21/02
Analysis Performed By:
MARK PEYSAKHOV
GO, Structure Structure Type Length ID of Structure N or y EDS
No (Nonadb
F B C M >=05 p : '=5iJ Chrys Amphibole Nonasb Ambig/ND
No Coord <5p Elements)
Struct = > 0.5p >5:1 Aspect Ratio Grid acceptance:
Positive diffraction pattern properties conforming Io <50% undissolved filter, overlapped or folded Totals
laboratory identification criteria observed <10% particulate coverage >50% coverage ate
^f= EDS spectrum conforming to laboratory
least 20 unfolded or overlapped grid squares <5%
holes or opaque areas
F B c M
identification criteria observed Chrysotile
AMPHIBOLES Amphibole
F = Single Fiber Amosite
E = Bundle (<3 fibers <1 fiber diameter apart CroGidolite Ambiguous
C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos
: Tremolite
M = Matrix Non-Identified
Actinolite
NSD = No Structures Detected
CONFIDENTIAL, CITY_21MC100_003466958
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000180406
OCR can misread numbers and units. Confirm readings against the page image before using them.