NYC-WTC_000201309

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1920 Lab Group #: Filter Type / Filter Area: MCE 385 mir? I.ab Sample #: 6 Grid Opening Size: 0.01124 Client Sample #: 06 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, CtORYCKI -

GO. Structure Structure Type Length ID of Structure N or 7 EDS (Nonadb No F B C >=05 p Chrys . Amphibole Nonasb Ambig/ND Coord <5u Elements)

4

(Oo

Struct = > 0.5p > S: 1 Aspect Ratio Grib acbeptance: s Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals laboratory identification criteria dbser’/ed <10% paniculate coverage >50% coverage ate least 20 unfcibed or overlapped grid souarss <5% F B C i M >5U . 7= EDS spectrum conforming to laboratory . holes or opaque areas identification criteria observed Chrysotile AMPHIBOLES Amphibole F - Single Fiber Amosite B = Bundle (<3 libers <1 fiber diameter apart Crocidolite Ambiguous C - Cluster (>3 ntersections) Anthophyllite Noil-Asbestos Trernolite M = Matrix ' Actinolite Non-Identified NS'D = No Structures Detected

CITY_21MC100_011275603

NYC-WTC_000201314