NYC-WTC_000196816

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: NYC BOE Volume (liters): 1912 Lab Group #: 8809 Filter Type / Filter Area: MCE 385 Lab.Sample #: 12 Grid Opening Size: 001124 Client Sample #: 12 Area Examined: 0 04496 mm-

GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV a Grid Openings: 4 Analysis Date: 9/5/02

Analysis Performed By: MARK PEYSAKHOV

GO Structure Structure Ty pe Length ID of Structure N or EDS (Nonadb No F B C “m •=5p Chrys Amphibole Nonasb Ambig/ND No Coord <5p Elements)

h '.

Struct = > 0 5g _> 5 1 Aspect Ratio Gnd acceptance Positive diffraction pattern properUes conforming -.o' *50% undissolved filter, overlapped or folded Totals laboratory identification cntena observed <10% particulate coverage >50% coverage ale least 20 unfolded or overtapped gnd squares <5% F B C M >5|J EDS spectrum conforming to laboratory holes or opaque areas identification catena obsen/ed Chrysotile i'amphiboles' ; Amphibole F = Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Closter (>3 Intersections) Anthophyllite Non-Asbestos Tremolite M = Matrix Actinolite Non-Identified NSb = No Structures Detected

CITY_21MC100_003042954

NYC-WTC_000196816