NYC-WTC_000203482

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1805 Lab Group #: 9090 Filter Type / Filter Area: MCE 385 mm^ Lab Sample #: 13 Grid Opening Size: 0 01124 Client Sample #: Area Examined: 0 04496 mm^ GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 11/11/02

Analysis Performed By: romanVeysakhov

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

^^2 ____ /_____ ((

Photo No (from 1 in 5 asbestos containing samples) Gnd acceptance Struct = > 0 SU > 5 1 Aspect Ratio <50% undissolved filter, overlapped or folded Totals ■7 = Positive diffraction pattern properties conforming to <10% particulate coverage >50% coverage ate laboratory identification critena observed least 20 unfolded or overlapped gnd squares <5% F B C M holes or opaque areas ’/= EDS spectrum conforming to laboratory Chrysotile identification cnteria observed ■A.MPHIBOLES ; Amphibole F = Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite > Ambiguous C = Cluster (>3 Intersections) ) Anthophyllite Non-Asbestos I Tremolite I M = Matnx Non-ldentified Actinolite NSO = No Structures Detected

CITY_21MC100_003058152

NYC-WTC_000203482