NYC 9/11 Public Portal Document
TEM Asbestos (air) Count Sheet
Client Name: WC ROE Volume (liters): 1800
Lab Group #: 7381 Filter Type / Filter Area: MCE 385 mm^
Lab Sample #: 16 Grid Opening Size: 0.01124
Client Sample #: 16 Area Examined: 0.04496 mm-
GRID BOX: ,/C'7 7 Magnification: 20,000
GRID ID: 7YC Accelerating Voltage: 100 KeV
# Grid Openings: 4 Analysis Date: 4/11/02
Analysis Performed By:
ROMAN PEYSAKHOV
GO. Structure Structure Type Length ID of Structure NorN EDS !
(Nonadb I
No F B C M >=05 M : Chrys Amphibole Nonasb Ambig/ND
No Coord <5m Elements) .
/I
/ ‘G'-r H__
Slruct = > O.op >5:1 Aspect Ratio Grid acceptance:
7= Positive diffraction pattern p-operties conforming to <50% undissolved filter, overlapped or folded Totals
laboratory identification criteria observed <10% particulate coverage >50% coverage ate
least 20 unfolded or overiapped grid squares <5% F B [ C } Vi ' >5p
V= EDS spectrum conforming to laboratory holes or opaque areas
identification criteria observed Chrysotile
i I !
AMPHIBOLES Amphibole
F = Single Fiber I i
Amosite
3 = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous I [
C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos 1
T remolite
M = Matrix Non-ldentified
Actinolite
NSD = No Structures Detected
CONFIDENTIAL, CITY_21MC100_003470988
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000176873
OCR can misread numbers and units. Confirm readings against the page image before using them.