NYC-WTC_000230350

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: NYC BOE Volume (liters): 1928 Lab Group #: 6687 Filter Type / Filter Area: MCE 385 mm= Lab Sample #: 16 Grid Opening Size: 0.01124 Client Sample #: 16 Area Examined: 0.04496 mm^

GRID BOX: Magnification: 20,000 GRID ID: s~r / Y Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 2/15/02

Analysis Performed By: ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID of Structure N or V EDS I No ‘ (Nonadb j F B C, M >=05 p >=5p Chrys Amphibole Nonasb Ambig/ND / No Coord <5p Elements)

71W V VW ..'S

;u — 1

Struct = > 0.5)1 > 5:1 Aspect Ratio Grid acceptance: Positive diffraction pattern properties canfarming to <50% undissolved filler, overlapped or folded Tot^ 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 diameter apart Crocidolite . Ambiguous C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite M = Matrix Non-Identified Actinolite NSD = No Structures Delected

CONFIDENTIAL, CITY_21MC100_003389106 SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008

NYC-WTC_000230350