NYC 9/11 Public Portal Document
TEM Asbestos (air) Count Sheet
Client Name: NYC BOE Volume (liters): 1840
LabChlouD^ 7455 Filter Type / Filter Area: MCE 385 mm’
Lab Sample #: Grid Opening Size: 0.01124
Client Sample #: 07 Area Examined: 0.04496 mm-
GRID BOX: Magnification: 20,000
GRID ID: Accelerating Voltage: 100 KeV
# Grid Openings: 4 Analysis Date: 4/18/02
Analysis Performed By:
MARK PEYSAKHOV
GO Structure Structure Type Length ID of Structure N or A I EDS
(Nonaob
No F B C M >=05 u >=5p Chrys Amphibole Nonasb Ambig/ND
No Coord <5p Elements)
Of-
I !
I T
Struct ==> 0,5u >5:1 -Aspect Ratio Grid acceptance:
vl= Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals
laboratonr identification criteria observed <10% particulate coverage >50% coverage ate
least 20 unioWea or overiapped grid squares <5To |' I F I B I C i M
v = EOS spectrum conforming to laboratory holes or opaque areas p
iuenlificaiion criteria observed Chrvsotile
I
AMPHIBOLES Amphiboie :
F = Single F ber Amosite
B = Bundle (<3 fioers <’ fiber diameter apart Crocidralite Ambiguous
C = Cluster (>3 intersections! Anthophyllite Non-Asbestos i
Tremolite
M = Mat'i.x Non-Identified i
Actinolite
NSC = No Structures Detected
CONFIDENTIAL, CITY_21MC1OO_OO3471132
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000176968
OCR can misread numbers and units. Confirm readings against the page image before using them.