NYC-WTC_000228251

NYC 9/11 Public Portal Document

TEMAsbestoslairiCount Sheet Client Name: NYC BOE Volume (liters'); 1800 Lab Group #: 7261 Filter Type / Filter Area: MCE 385 mm- Lab Sample#: 2 Grid Opening Size: 0.01124 Client Sample #; 02 Area Examined: 0.04496 mm*

GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage; 100 KeV Grid Openings: 4 Analysis Date: 3/30/02

Analysis Performed By: MARK PEYSAKHOV

. 60. Structure Structure Type Length ID of Structure N or V £DS (Nonadb No F B C M >=05 M >=5)j Chrys Amphibole Nonasb Ambig/NO No Coord <5m Elemens)

Struct» > 0.5p > 5:1 Aspect Ratio Grid acceptancK Positive ditfrscSon paOem properties conforming to '^0% undissoh^ filter, overlap or foldod Totals I" laboratory identification critehar-observed ■■ <10% parfciiala coverage >50% coverage ate least 20 unfolded or ovedapped grid squares <5% F B C M : >5p EDS spectrum conforming to laboratory holes or opaque areas identification criteria observed Chrysotile AMPHIBOLES Amphibole F • Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) Anttiophylllte Non-Asbestos Tremolite M = Matrix Actinolite Non-Identified NSD = No Structures Detectad

CITY_21MC100_002899625

NYC-WTC_000228251