NYC-WTC_000202575

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume niters): 1920 Lab Group #: 9210 Filter Type / Filter Area: MCE 385 mm* Lab Sample #: 14 Grid Opening Size: 0.01124 Area Examined: 0.04496 Client Sample #: 16 GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysts Date: 12/26/200

i] Analysis Performed By: 1 s MARK PEYSAKIIOV

GO. Structure Structure Type Length ID of Structure N or 4 EDS (Nonadb No F B C M >=05 p Chrys Amphibote Nonasb A.nbig/NC No! Coord Eiamsnts) <5|J

! -V-z

!

r- Hhoio No. itrom 1 in s asbestos containing sampes) ~ Grid acceptance: Struct = > 05p > 5:1 Aspect Ratio undissolved filter, overlapped or folded Totals /= Positive diffraction pattern properties conforming to <10% particulate coverage >60% coverage ate iafcoratcry identification cnteria obsen/ed least 20 unfolded or overlapped grid squares <5% holes or opaque areas F B L. M \= EDS spectrum conforming to laborato^ identification criteria observed Chrvsotile I AMPHIBOLES Amphibole F = Single Fiber I Amosite 3 = Bundle i<3 fibers <1 fiber diameter apart j Crocidolite Ambiguous i Anthophyllite C = Cluster i>3 Intersections) I Tremolite Non-Asbestos M = Matrix Actinolite Non-Identified NSD = No Sifjcrures Detectec

CITY_21MC100_003273634

NYC-WTC_000202575