NYC-WTC_000205784

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: Warren & Panzer Volume (liters): 1500 Lab Group #: 8031 Filter Type / Filter Area: MCE 385 mm^ Lab Sample #: 4 Grid Opening Size: 0.01124

Client Sample #: 06 Area Examined: 0.0562

GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: too KeV # Grid Openings: 5 Analysis Date: 6/9/02

Analysis Performed By: MARK PEYSAKHOV

GO. Structure Structure Type Length ID of Structure N or EDS No (Nonadb F B C M >=05 p :>=5|J Chrys Amphibole Nonasb Ambig/ND No Coord <5m Elements) ;

zF 2

Struct = > 0.5p >5:1 Aspect Ratio Grid acceptance; W Positive diffraction pattern properties conforming to <50% undissolved fiter, overiapped 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 AMPHtBOLES Amphibole F = Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite M = Matnx Actinolite Non-Identified j NSD = No Structures Detected

CITY_21MC100_003009165

NYC-WTC_000205784