NYC-WTC_000208236

NYC 9/11 Public Portal Document

TEMAsbesfosjairlCount Sheet Client Name: NYC BOE Volume (liters): 1920 Lab Group #: 8828 Filter Type / Filter Area: MCE 385 mm- Lab Sample #: 11 Grid Opening Size: 0.01124 Client Sample #: 11 Area Examined: 0.04496 mm’ GRID BOX: Magnification: 20,000 GRID ID: Aj^celeratingVoltage: 100 KeV # Grid Openings: 4 Analvsis Date: 9/10/02

Analysis Perfcrmed By: MARK PEYSAKIIOV

GO Structure Structuie Type Length ID of Structure N or \ EDS No fNonadb F B i C M CLfls'p Chrys Amphibole Nonasb Ambtg/ND No Coord <5p Elements)

..-'it-'

^<3

Siruct = 0,5,u -5:1 Aspect Ratio Grid acceptance

'1= Positive diffraction pattern properties conform tg to <50% undissolvec filter overlapoed or folded Totals <10% pa.dicuiate coverage >50% coverage ate laborator/ identification criteria observed least 20 unfolded or overlapped grid souares <5% ) F B 1 C . M \'= EDS spectrum corforming to laboratory holes or opaque areas r identification criteria observed Chrysotile i ■AMPHIBOLES Amphibole I F = Single Fiber Amosite B, = Bundle (<j fibers <1 fiber diameter apart Crocidolite ■Ambiguous C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite M = Matrix Non-ldentified Actinolite MSD = No Structures Detected

CITY_21MC100_003021215

NYC-WTC_000208236