NYC-WTC_000201819

NYC 9/11 Public Portal Document

TEM Asbestos lair) Count Sheet Client Name: NYC BOE Volume (liters): 1840 Lab Group #: 6953 Filter Type / Filter Area: 1 MCE 385 mm’ Lab Sample #: 16 Grid Opening Size: 0.01124 Client Sample #: 16 Area Examined: 0.04496 GRID BOX: GRID ID: iii. Magnification: Accelerating Voltage: 20,000 i 00 KeV # Grid Openings: 4 Analysis Date: 3/6/02

Analysis Performed By: ROMAN PEYSAKHOV

GO. . Structure Structure Type Length ID of Structure N or v EDS (Nonadb No ' F B C M >=05 M >=5p Ohrys^Amphibde Nonasb Ambig/ND , No Coord <5p Elements)'

I // (I 102. /z

Struct - > '0l5p > 5:1 Aspect Ratio:! ! Grid acceptance:

V - Positive diffraction pattern properties conforming to <56% undissolved filter, overlapped or folded . Totals laboratory identificaticri criteria observed <10% particulate coverage >50% coverage, ate

EDS speotrum ccnforriiing to laboratory least 20 unfolded or overlapped grid squares <5%. F B e M holes or opaque areas : J identification criteria observed Chrysotile AMPHIBOLES Amphibole F - Single Fiber ! Amosite E = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite M = Matrix :: t : Non-ldentified j Actinolite NSD = No Structures Detected

CITY_21MC100_003269174

NYC-WTC_000201819