NYC-WTC_000200257

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: NYC BOE Volume (liters): 1840 Lab Group #: 7278 Filter Type / Filter Area: MCE 385 mir? Lab Sample #: 11 Grid Opening Size: 0.91124 Client Sample #: 11 Area Examined: 0.04496 GRID BOX: Magnification^ 20 000 GRIDID; Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 3/31/02

Analysis Performed By: ROMAN PEYSAKHOV

GO. 1 Structure Structure Type . Length ID of structure NoCY" EDS 1 . No >=5p (Nanadb F B C M i >=05 M ■ Chrys Amphibole Nonasb AmbigtNC H ' No i Coord J <5p Elements I

tz 17 V "f -

Struct = > 0.5)1 _> 5: i Aspect Ratio Grid acceptance: ' 7 = Positive diffraction pattern properties conforming to <50% undibsolved filter, overlapped or folded Totals laboratory identification criteria observed <10% oarticulate coverage >507o coverace ate least 20 unfolded or overlapped grd squares <5% f F B C M >5p 7= EDS spectrum conforming to-laboratory holes or ooaque areas identification criteria observed Chrysotile AMPHIBOLES Amphibole F = Single Fibe:' Amosite B = Bundle '<3 fibers <1 fiber diameter acai Crocidolite Ambiguous C = Cluster (>3 intersections) Anthophyllite Non-Asbestos Tremolite M = Matrix Non-Identified Actinolite NSD = No Structures Detected

CITY_21MC100_011274748

NYC-WTC_000200267