NYC-WTC_000205964

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: Warren & Panzer Volume (liters): 1620 Lab Group #: 8569 Filter Type / Filter Area: MCE 385 mm^ Lab Sample #: 5 Grid Opening Size; 0.01124 Client Sample #: DE05 Area Examined: 0.0562 mm^ GRID BOX: Magnification; 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 5 Analysis Date: 7/22/02

Analysis Performed By: ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID of Structure Nor N EDS No (Nonadb C M >=05 M >=5p Chrys Amphibole Nonasb Ambig/ND No Coord <5m Elements)

T z:

/S I/.

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 >5p <= 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_002992057

NYC-WTC_000205969