NYC-WTC_000201095

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYCBOE Volume (liters): 1920 Lab Group #: 7874 ■ Filter Type / Filter Area: MCE 385 mnr Lab Sample #: 2 Grid Opening Size: Q.Ol 124 Client Sample #: 02 Area Examined: 0.04496 mm- GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: lOOKeV I # Grid Openings: 4 Analysis Date: 5/25/02

Analysis Performed By: ROMAN PEYSAKHOV

GO, Structure Structure Type Length I ID of structure Nor v' EDS No I , Chrys j Amphlbols i Nonasb (Nonadb F >=5m Ambig/ND „ 'No Coord Elemenis) -4- <5p

7 'I

j-

<t

i Struct = > O.Sp > 5:1 Aspect Ratio ; Grid acceptance:. Positive diffraction pattern properties contormino to <50% unnissolved filter, overlapped or folded Totals ’ , laboratory identification criteria observed <10% paniculate coverage >50% coverage ate ■ i least 20 unfolded or overiapped grid squares <5% C M >5u 7 ; ; / 7= EDS spectrum conforming to laboratory i F holes oropaqus areas ' identification criteria observed Chrysotile ' AMPHIBOLES ; Amphibole ■ F = Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Arnbiguous C = Cluster !>3 IntersecSons) Anthoph/llite Non-Asbestos i Tremolite i , M = Matrix; Non-Identified Actinolite i ■ NS-D - No Structures Detected

CITY_21MC100_0112T5380

NYC-WTC_000201096