NYC 9/11 Public Portal Document
TEM Asbestos (air) Count Sheet
Client Name: NYC BOE Volume (liters): 1920
Lab Group #: 6954 Filter Type / Filter Area: MCE 385 mm’
Lab Sample #: 4 Grid Opening Size: 0.01124
Client Sample #: 04 Area Examined: 0,04496 mm-
GRID BOX: Magnification: 20,000
GRID ID: Accelerating Voltage: 100 KeV
# Grid Openings: 4 AnalysisDate: 3/7/02
Analysis Performed By: /?p
ROMAN PEYSAKHOV
GO, Structure Structure Type Length ID of Structure N or 7 EDS ;
No (Nonadb
F B C >=06 p >=5p Chrys Amphibole Nonasb Ambig/ND
No Coord <5p Elements) ,
if
X-----
Struct = > 0,5p >5:1 Aspect Ratio Grid acceptance,
\= Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals
laboratory Identification criteria observed <10% particulate coverage >50% coverage ale
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 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 Detected
CONFIDENTIAL, CITY_21MC100_003468340
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000181333
OCR can misread numbers and units. Confirm readings against the page image before using them.