NYC 9/11 Public Portal Document
TEM Asbestos (air) Count Sheet
Client Name: NYC BOE Volume (liters): 1928
Lab Group #: 7204 Filter Type / Filter Area: MCE 385 mm-
Lab Sample #: 5 Grid Opening Size: 0.01124
Client Sample #: 5 Area Examined: 0.04496 mm=
GRID BOX: Magnification: 20,000
GRID ID: Accelerating Voltage: 100 KeV
# Grid Openings: 4 Analysis Date: 3/25/02
Analysis Performed By:
. ROMAN PEYSAKHOV '
GO. Structure Structure Type Length ID of Structure Norv EDS
(Nonadb■
xn No- F B C M >=05 (J >=5)j Chrys Amphibole Nonasb Ambig/ND
( Coord . <5m Elements)
J
t/P =zz:
Struct = > 0.5(1 .> 5:1 Aspect Ratio Grid acceptance:
Positive diffraction pattern properties conforming to <50% undissolved filler, 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 >5u
■/= EDS spectrum conforming to laboratory holes or opaque areas
identification criteria observed Chiysotile
AMPHIBOLES Amphibole
F = Single Fiber Amosite
B = Bundle (<3 iibers’<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_003389182
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000230379
OCR can misread numbers and units. Confirm readings against the page image before using them.