NYC 9/11 Public Portal Document
TEM Asbestos (air) Count Sheet
Client Name: NYC BOE Volume (liters): 1920
Lab Group #: 8138 Filter Type / Filter Area: MCE 385 mm’
Lab Sample #: 3 Grid Opening Size: 0.01124
Client Sample #: 03 Area Examined: 0.04496 mm’
GRID BOX: Magnification: 20,000
GRIDID: Accelerating Voltage: 100 KeV
# Grid Openin2s: 4 Analysis Date: 6/17/02
Analysis Performed By:
MARKPEYSAKHOV
GO. Structure Structure Type Length ID of Structure N or n/ EDS
(Nonadb
No F B C >=05 p Chrys Amphibole Nonasb Ambg/ND
No Coord <5p Elements)
2^^
Struct = > 0.5p > 5:1 Aspect Ratio Grid acceptance:
n/= Positive diffraction pattern properties conforming to *50% undissolved filter, overiapped or folded Totals
laboratory identification criteria observed <10% particulate coverage >50% coverage ate
least 20 unfolded or overiapped grid squares <5% F B C M >5w
'I- EDS spectrum conforming to laboratory holes or opaque areas
identification criteria observed Chrysotile
'amphiboles' Amphibole
F = Single Fiber Amosite
B = Bundle (<3 libers <1 fiber diameter apart Crocidolite : Ambiguous
C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos
M = Matrix T remolite
Actinolite Non-Identified
NSD = No Structures Delected
CONFIDENTIAL, CITY_21MC100_003387867
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000229742
OCR can misread numbers and units. Confirm readings against the page image before using them.