NYC-WTC_000212480

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: N"fC BOE Volume (liters): 1920 L ab Group #: 7477 Filter Type / Filter Area: MCE 385 mm- L ab Sample #: 6 Grid Opening Size: 0.01124 C lient Sample #: 06 Area Examined: 0.04496 mm^

CiRLD BOX: Magnification: 20 000 GRLDID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 4/20/02

Analysis Performed By: ROMAN PEYSAKHOV

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

/O ZjL (I

S;ruct == > 0.5p > 5:1 Aspect Ratio Grid acceptance: < = Positive diffraction pattern properties conforming to undissolved filter, overlapped or folded Totals l>« lajorator/ identification criteria observed ^10% p3ftC^3td C0VQf3Q6 ^50% COVStS^G Std least 20 unfolded oroveriapped grid squares <5% F B C M >5p \ = EDS spectrum conforming Io laboratory holes or opaque areas id jntification cntena oDsetved Chrysotile AMPHIBOLES Amphibole F = Single Fiber Annosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster {>3 Intersections) Anthophyllite Non-Asbestos Tremolite M = Matrx Non-Identified Actinolite N:.D = No Structures Detected

CITY_21MC100_002866668

NYC-WTC_000212480