NYC-WTC_000227693

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: NT’C BOE Volume fliters): 1920 Lab Group #: 7351 Filter Type / Filter Area: MCE 385 mm- Lab Sample #: 5 Grid Opening Size: 0.01124

Client Sample #: 07 Area Examined: 0.04496 mm-

GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 4/7/02

Analysis Performed By: MICHAEL GORYCKl

GO, Structure Structure Type Length ID of Structure N or 9 EDS (Nonadb No F B C M >=C5p : ■=5p Chrys Amphibole Nonasb Ambig/ND No Coord <5p Elements)

I H7 7

\oe

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

9= Positive diffraction pattern properties conforming to <5C% 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 >5u 9= EDS spectrum conforming to laboratory holes or opaque areas identification criteria observeo 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_002899198

NYC-WTC_000227693