NYC-WTC_000225461

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1944 Lab Group #: 6066 Filter Type / Filter .Area: MCE 385 Grid Opening Size: 0'01124’ Lab Sample #: 8 Client Sample #: 8 Area Examined: 0.04496

GRID BOX: Magnification: 20,000 • GRIDED: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 12/9/01

Analysis Performed By: ap ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID of Structure N or 7 EDS (Nonadb No ’ F B C M >=05 p >=5|j Chrys Amphibole Nonasb Ambig/ND No Coord <5p Elements)

Struct = > 0.5p .>5:1 Aspect Ratio end acceptance: a/= Positive diffraction pattern properties 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 >5p ■ 'J- EDS spectrum conforming to laboratory holes or opaque areas idenSfication criteria observed Chrysotile AMPHIBOLES Amphibole F = Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite ' Ambiguous C = Cluster (>3 Intersections) , Anthophyllite , i Non-Asbestos M = Matrix Tremolite r Actinolite ' Non-Identified NSD = No Structures Detected

CITY_21MC100_002921447

NYC-WTC_000225461