NYC-WTC_000210492

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: Airtek Volume (liters): 1300 Lab Group #: 6115 Filter Type / Filter Area: MCE 385 mm^ Lab Sample #: 20 Grid Opening Size: 0.01124 Client Sample #: 30 Area Examined: 0,06744 mm- GRID BOX: ( Magnification: 20 000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 6 Analysis Date: 12/15/01

Analysis Performed By: MARK PEYSAKHOV

GO. Structure Structure Type Length ID of Stnjcture N or N EDS 1 No Amphibole Nonasb (Nonadb j F B C M «05u >=5p Chr/s Ambig.'ND No Coord <5|J Elements) ;

I I

Struct = > 0 5|u .> 5:1 Aspect Ratio Grid acceptance: V= Positive diffraction pattern ptoperlies conforming to "50% undissolved fifter, overlap^ or folded Totals laboratory identification___ <10%observed criteria patticulate covefagB >50% coverage ate least 20 unfolded or overlapped grid squares <5% F B C M >5m '/= EDS spectrum confoiming to laboratory holes or opaque areas identification criteria observed Chrysotile AMPHIBOLES Amphibole F = Single Fiber Amosite 5 = Bunole (<3 libers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 intersections! Anthophyllite Non-Asbestos Tremolite M = Matrix Non-Identified Actinolite NSD = No Structures Detecteo

C ITY_D E P_WO RB Y_C AN N ATA_SU B P_000021319

NYC-WTC_0002 10492