NYC-WTC_000193124

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NA’C BOE Volume (liters): 1832 Lab Group #: 7979 Filter Type / Filter Area: MCE 385 Lab Sample #: 16 Grid Opening Size: 0.01124 C lient Sample #: Area Examined: 0.04496

GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 6/5/02

---------- — 7' Analysis Perlormed By: _______ L—El_______ ROMAN PEYSAKHOV

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

2^ If M

Struct = > 0.5p >5:1 Aspect Ratio Grid acceptance: >/= Positive diffraction pattern proper! es conforming to <50% undissolved filter, overlapped or folded Totals laboratory identification criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F B C M >5iJ EDS spectrum conforming to laboratory holes or opaque areas identification criteria observed Chrysotile AMPHIBOLES Amphibole F = Single Fiber Amosite B = Bundle (<5 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) i Anthophyllite Non-Asbestos I Tremolite M = Matrix Non-Identified Actinolite NSD = No Structures Detected

CITY_21MC100_003094178

NYC-WTC_000193124