NYC 9/11 Public Portal Document
TEM Asbestos (air) Count Sheet
Client Name: WC BOE Volume (liters): 1952
Lab Group #: 6191 Filter Type / Filter Area: MCE 385 mm-
Lab Sample /?: 18 Grid Opening Size: 0.01124
Client Sample #: 18 Area Examined: 0.04496
GRID BOX: 7^) Magnification: 20,000
GRID ID: Accelerating Voltage: 100 KeV
# Grid Openings: 4 Analysis Date: 12/24/01
Analysis Performed By:
ROMAN PEYSAKHOV
GO. i Structure Structure Type Length ID of Structure N or 0 EDS
No (Nonadb
F B C M >=05 p i>=5(0 Chrys Amphibole Ncnasb ' Ambig/ND
Z\ No Coord j <5u Elements)
7
------------------------- --------------------
I I I
Struct = > 0 5.u > 5; 1 Aspect Ratio Grid acceptance;
V = Positive diffraction pattern properties conforming to <50% undissolvefl filter, overlappefl or folded Totals
laboratory Identification critaria observed <10% particulate coverage >50% coverage ate
0= EDS spectrum conforming to laboratory
least 20 unfolded or overlapped grid squares <5% c M >5u
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 Delected
CITY_21MC100_003105058
NYC-WTC_000184401
OCR can misread numbers and units. Confirm readings against the page image before using them.