TEM Asbestos (air) Count Sheet
Client Name: NYC BOE Volume (liters): 1840
Lab Group #: 6622 Filter Type / Filter Area: MCE 385 mm^
Lab Sample #: 1 Grid Opening Size: 0.01124
Client Sample #: 01 Area Examined: 0.04496 mm’
GRID BOX:
GRID ID:
# Grid Openings: 4
to Magnification:
Accelerating Voltage:
Analysis Date:
20,000
too KeV
2/10/02
Analysis Performed By:
ROMAN PEYSAKHOV
GO. Structure Structure Type Length ID of Structure N or v EDS
No (Nonadb
F B C M >=05 p :>=5p Chrys Amphibole Nonasb Ambig/ND
[ No -Coord <5|j Elements)
Struct = > 0.5u -> 5:1 Aspect Ratio Grid acceptance;
Positive diffracdon pattern properties conforming to <50% untootv^^r^overiaj)^^^ Totals
laboratory identification oritetia observed
least 20 unfolded or overlapped grid squares <5% F B C M >5u
•/= EDS spectrum conforming to laboratory holes or opaque areas
identification criteria obsenred 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_003433681
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000175891
OCR can misread numbers and units. Confirm readings against the page image before using them.
NYC-WTC_000175891Source: NYC Law Department, mirrored locally
Laboratory report documenting transmission electron microscopy analysis of an air sample collected from a NYC Board of Education site on January 27, 2002.
Technical data sheet recording transmission electron microscopy parameters and observations for the eighth asbestos air sample analyzed on January 22, 2002.
Laboratory report documenting transmission electron microscopy analysis of an air sample collected from a NYC Board of Education site on January 27, 2002.
Laboratory report documenting transmission electron microscopy analysis of an air sample collected from a NYC Board of Education site on January 27, 2002.