NYC-WTC_000222599

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOI A'o'time (liters): 1808 Lab Group #: 7539 Filter Type / Filter .Area: MCE 385 mm^ Lab Sample #: 14 Grid Ouetiiiig Size: 0.01124 Client Sample #: 17 Are;-, t.xamined: 0.04496 mm^ GRID BOX: Maunitlcation: 20,000 GRID ID: Acceleru:ii'.;; \'oltage: 100 KeV. # Grid Openings: 4 .A liiixsi.s Date: 4/25/02

Analysis Fei formed By: MARK PEYSAKHOV

GO. Structure I Struc ure Type Length ID ■/•r.Mire Nor y EDS No (Nonadb I F ! E M >=05 p ~ ■ Chrys Aniph...c.- Conasb Ambg/ND No Coord I I <5p ---- Elements)

-4 j----- ;

i !

I'

3 ! i ! : I

Struct = > 0.5u > 5:1 Aspect Kutu Slid acceptance: Positive diffraction pattern properties cenfr ning to <£0% undissolved filter, ove-iapped or folded Totals laboratory identification criteria obser/ed <10% particulate coverage :0% coverage ate least 20 unfolded or over1ap:^ed grid squares <5% F IB C M >5m 4= EDS spectrum conforming to laboratory holes or opaque areas identification criteria observed '■;!e

.AMPHIBOLES F = Single Fiber Amosite ■1. , U.S ■ 0 = Bundle (<3 fibers <1 fiber diameter apart Crocidolite C = Cluster (>3 Intersections) Anthophyllite .('.s ■ Tremolite M = Matrix ‘=.?d Actinolite NSD = No Structures Detected

CITY_21MC100_002918232

NYC-WTC_000222599