NYC-WTC_000217922

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (titers): 1920 Lab Group 667! Filter Type ' Filter .Area: MCE 3S Lab Sample #: 14 Grid Opening Size: 0.01! 24

Client Sample #: 14 Area Examined: 0.04496 mtn-

GRID BOX: Maenification: 20.000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 2.' 14/02

Analysis Performed By: mark peysakhov

GO. Structure Structure Type Length ID of Structure N or 7 EDS (Nonadb No F M >=05 u Chrys Amphibole Nonasb . Amog/ND i No Coord <51J Elements') )

23

Struct = > 0.5g > 5;1 Aspect Ratio Gnd acceptance; n/= Positive diffraction pattern propertes 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 l M ■ N ’/= EDS spectrum conforming to laboratory holes or opaque areas identification criteria observed Chrysotile j AMPHIBOLES Amphibole F = Single Fiber Amosite Crocidolite Ambiguous B = Bundle (<3 fibers <1 fiber diameter apart C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos t Tremolite M = Matrix Actinolite Non-Identified j NSC = No Structures Delected

CITY_21MC100_002878067

NYC-WTC_000217922