NYC-WTC_000230080

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters'): 1928 Lab Group #: 7204 Filter Type / Filter Area: MCE 385 Lab Sample #: 3 Grid Opening Size: 0.01124 Client Sample #: 3 Area Examined: 0.04496 mm^ GRID BOX: irz Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 3/25/02

Analysis Performed By: ROMAN PEYSAKHOV

GO, Structure Structure Type Length ID of Structure NorV EDS No (Nonadb F B C M >=05 p :>-5|j Chrys Amphibole Nonasb Ambig/ND No Coord <5p Elements)

Lt;

Struct = > 0.5p > 5:1 Aspect Ratio Grid acceptance: •J- 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% F B C M >5u 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 dia.reter apart Crocidolite Ambiguous C = Cluster (>3 Intersections^ Anthophyllite Non-Asbestos Tremolite M = Matrij Actinolite i Non-Identified NSD = No Structures Detected

CONFIDENTIAL, CITY_21MC100_003388716 SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008

NYC-WTC_000230080