NYC-WTC_000201659

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: OTCBOE Volume (liters): 1920 Lab Group #: 7567 Filter Type / Filter Area: MCE 385 mm’ Lab Sample #: 15 Grid Opening Size: 0.01124

ClientSainplef^ 15 Area Examined: 0.04496 mm’

GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 4/29/02

Analysis Performed By: MARKPEYSAKHOV

GO. Structure Structure Type Length - ID pf Structure N or -/ - ECS . No (Nonadb F E C M >=05 p Chrys Amphibole Nonasb Ambig/ND No Coord <5p Elements)

^ 7 -J

r 1

i Struct = > 0.5g -> 5:1 Aspect Ratio Grid acceptance: N= Positive diffraction pattern properties conforming to <50% undissoivsd filter, overlapped or folded Totals ■ laboratory icentification criteria observed <10% particulate coverage >50% coverege ate

\= EDS spectrum conforming to labpratory least 20 urfoWed or overlapped grid squares <5% F B cTm holes or opaque areas identification criteria observed Chrysotile i AMPHIBOLES ] Amphibole F = Single Fiber Amosire B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) I Anthophyllite Non-Asbestos i T remolite M = Mgtrix MSD = No Structures Detected ; Actinolite Non-Identified _L

CITY_21MC100_011275774

NYC-WTC_000201673