NYC-WTC_000213849

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: NYC BOE Volume (liters): 1840 Lab Group #: 7988 Filter Type / Filter Area: MCE 385 mm^ Lab Sample #: 9 Grid Opening Size: 0.01124

Client Sample #: 11 Area Examined: 0.04496 mm^

GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 6/6/02

Analysis Performed By: MARK PEYSAKHOV

GO. Structure Structure Type Length ID of Structure Norv EDS (Nonadb No F B C M >=05 M >=5p Chrys Amphibole Nooasb Ambig/ND No! Coord <5p Elements)

' ' J

Struct = > 0.5g > 5;I Aspect Ratio Grid acceptance; Positive diffracbon partem properties conforming to <5°% undissohzed filter, overlap^ or folded Totals __ .... identification laboratory ___ ____ ____ criteria observed_ <10% parficulate coverage >50% coverage ate least 20 unfolded or overfapped grid squares <5% F B C M >5p '1= EDS spectrum confonning to laboratory holes or opaque areas identification criteria obsen/ed Chrysotile I AMPHIBOLE? Amphibole F = Single Fiber i Amosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite M = Matrix Non-Identified i Actinolite NSD = No Structures Detected

CITY_21MC100_002869687

NYC-WTC_000213849