NYC-WTC_000219585

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE V olume (liters): 1832 Lab Group #: 6989 Filter Type / Filter Area: MCE 385 mm- Lab Sample #: 12 Grid Opening Size: 0.01124 Client Sample #: 14 Area Examined: 0.04496 mm-

GRID BOX: ■Vlaonitication: 20,000 GRIDID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 3/9/02

Analysis Performed By: MARK PEYSAKHOV

GO. Structure Structure Type Length ID of Structure Nor v EDS (Nonadb No F B C M >=05 p C :>=5p Chrys AmpbiLoie I Noiiasb , Ambig'ND No Coord <5m i Elements’)

Struct = > i).?p > j; I ■Aspect Ratio Gria acceptance y = Positive diffraction pattern properties conforming to <50% undissolued tiller, overiapped or folded Totals latxjratoiy identification criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% T f F I B j C I M y = EDS spectrum conforming to laboratory holes or opaque areas identification criteria observed r Chrysotile i ■AMPHIBOLES ■Amphibole F = Smgie Filler Amosite B = Sundfe (<3 Obers <1 fiber diameter apart Crocidolite ■Ambiguous I C = Cluster |>3 intersections] Anthophyllite Non-.Asbeslos ’ Tremolite M = Matrix Actinolite Noivklentified NSD = No Structures Detected

CITY_21MC1OO_OO2881322

NYC-WTC_000219585