NYC-WTC_000203599

NYC 9/11 Public Portal Document

TEM Asbestos (MICROVAC) Count Sheet Client Name: NYC BOZ AOIume (ML): 20 Lab Group #: 6481 Surface^rea Sarnnl^ 100 Lab Sample #: () Client Sample #: 90-06 Maonification: 20.000

GIOD BOX: ■Accelerating Voltage: 100 KeV GRID ID: ci- # (RidOpening^ < Analysis Date: 1'28/02

Analysis Performed By: MARK PEYSAKHOV

GC. Structure Structure Type Length ID of Structure EDS (Nonadb No F ! B C , M Chrys Amphibole Nonasb Amblg/ND Elements)

Sb ___ _ I

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Struct = > 5.Ou > 3:1 Aspect Ratio Grid acceptance:

9= 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% [ 9= EDS spectrum conformirg to iaooiatory holes or opaque areas 1 ______ P B C M >5u

identification criteria observed Chrysotile AMPHIBOLES Amphibole F = Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter aoar: Crocidolite Ambiguous ’ C = Cluster (>3 Intersections! Anthophyllite Non-Asbestos Tremolite M = Matrix Non-Identified Actinolite .. . J NS 0 = No Structures Detected

CITY_21MC100_003059105

NYC-WTC_000203599