NYC-WTC_000203473

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: NYC BOE Volume (liters'): 1920 Lab Group #: 9090 Filter Type / Filter Area: MCE 385 mm- Lab Sample #: 4 Grid Opening Size: 0 01124 Client Sample #: 06 Area Examined: 0.04496 mm- GRID BOX: Magnification: 20,000 GRIDED: Accelerating Voltage: too KeV # Grid Openings: 4 Analysis Date: 11/11/02

Analysis Performed By: ROMAN PEYSAKHOV

GO Structure Structure Type Length ID of Structure N or 9 EDS No (Nonadb F B C M >=05 p Ctirys Amphibole Nonasb Ambig/ND No I Coord <5j Elements)

K - I(

Photo No (from 1 in 5 asbestos containing samples) Gnd acceptance. Struct = > 0 5m _> 5 1 Aspect Ratio ^5^% undissolved filter, ovedapped or folded Totals y= Positive diffraction pattern propemes conforming to <10% particulate coverage >50% coverage ate laboratory identification critena observed least 20 unfolded or overlapped gnd squares <5% F B C M >5iJ holes or opaque areas '/= EDS spectrum conforming to laboratory Chrysotile identification cntena observed ' AMPHIBOLES ' Amphibole F = Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite M = Matrix Non-Identified Actinolite NSD = No Structures Detected 1___L .

CITY_21MC100_003058143

NYC-WTC_000203473