NYC-WTC_000199282

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: WC BOE Volume /liters): 1928 Lab Ciroup #: 8809 Filter Tvpc / Filter Area: MCE 385 mm- Lab Sample #: 6 Grid Opening Size: 0.01124

Client Sample #: 06 Area Examined: 0.04496 mm-

GRID BOX: Maonification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 9/5/02

Analysis Performed By: MARK PEYSAKHOV

GO. Structure Structure Type Length ID of Structure N or T EDS No (Nonadb F B C M >=05 p : =5p Chrys Amphibole Nonasb Ambig/ND No Coord <5p Eiemenis)

! — a

Struct = > 0.5p > 5:1 Aspect Ratio Grid acceptance; <50% undissolved filter, overlapped or folded Totals 9- Positive diffraction pattern properties oonformir g to laboratory identification criteria observed <10% particulale coverage >50% coverage ate leas: 20 unfolded or overlapped grid squares <5% F B C M >5p EDS spectrum conforming Io laboratory holes or opaque areas identification criteria observed Chry'sotile ; AMPHIBOLES Amphibole F = Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C’= Cluster (>3 Intersections) Anthophyllite Non-Asbestos Trennolite M = Matrix Non-Identified i Actinolite NSD = No Structures Detected

CITY_21MC100_0 03048958

NYC-WTC_000199282