NYC-WTC_000229170

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: NYC BOE Volume niters): 1824 Lab Group #; 7953 Filter Type / Filter Area; MCE 385 mm» Lab Sample#: 4 Grid Opening Size: 0.01124 Client Sample #: 06 Area Examined; 0.04496 nun’ GRIP BOX: GRIP ID: # Grid Openings: 4 a V Magnification; 20,000 Accelerating Voltage: 100 KeV Analysis Date: 6/4/02

Analysis Performed By; ROMAN PEYSAKHOV

GO. Structure StfLCture Type Length lOofStTJchiTB Nor -J EDS (Nonadb No F B C M >=(Bp ""] ;>=5>j Chiys Atnphtools Nonasb AmbigAID No Coord <5u Elements)

Struct” >0.5|i > 5:1 Aspect Ratio Grid acceptance.' Positive diffracdon pattern properties conforming to <50% undissolved filter, overlapped or folded Totals lat»ratoiy identificaijrjn criteda observed <10% particulata coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F B C M >5U : EOS spectrum conforming to laboratory holes or opaque areas ipentificalion criteria observed Chrysotile AMPHIBOLES Amphibole F = Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3Jntei3eetlons) Antfiof^yllita Non-Asbestos Tremolite M = Matrix Actir«3lite Non-Identifled NSD = No Structures Detected

CITY_21MC100_002902355

NYC-WTC_000229170