NYC-WTC_000200375

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: NYC BOE Volume filters): 1840 Lab Group #: - 7986 Filter Type / Filter Area: MCE 385 mm" Lab Sample #: 9 Grid Opening Size: 0.01124 i Client Sample #: 09 Area Examined: 0.04496 mm^ I GRID BOX: Magnification: . 20,000 . i GRID ID: Accelerating Voltage: 100 KeV i # Grid Openings: 4 - Analysis Date: 6/6/02 ■

Analysis Performed By: MARK PEYSAKHOV

GO. Structure Structure Type Length ID of Structure Nor ' EDS No (Nonacb , B C M >=05 (J : '=5M Ghrys Amphibole Nonasb Ambig/ND Elements) i No [ Coord <5p

■cCC" I

.. i . I

4. i

Struct = > 0.5p > 5:1 Aspect Ratio Grid acceptance: V= Positive diffraction pattern properties conforming to undissolved filter, overlapped or folded Totals laboratory identifcatlon criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F LB C M >5m •/= 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_011274834

NYC-WTC_000200383