NYC-WTC_000206455

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: Warren & Panzer Volume (liters): 1584 Lab Group #: 8354 Filter Type / Filter Area: MCE 385 mm* Lab Sample #: 5 Grid Opening Size: 0.01124 Client Sample #: 05 Area Examined: 0.0562 mm^

GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: too KeV # Grid Openings: 5 Analysis Date: 6/30/02

Analysis Performed By: MARK PEYSAKHOV

GO. Structure Structure Type Length ID of Structure Nory EDS (Nonadb No F B C M >=05 p ■>=51J Chrys Amphibole Nonasb Ambig/ND No Coord <5p Elements)

Struct = >0.5p >5:1 Aspect Ratio Grid acceptance:

7= 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 >5m 7= 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 Detected

CITY_21MC100_003004756

NYC-WTC_000206459