NYC-WTC_000201877

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 184U Lab Group #: 6564 Filter Type / Filter Area: MCE 385 Lab Sample #: J Grid Opening Size: 0.01124

Client Sample #: 03 Area Examined: 0.04496 mnV

GRID BOX: Magnification^ 20,000 ■ GRID ID: Accelerating Voltage: 100 KeV #GridQpening^ 4 Analysis Date: 2/5/02

Analysis Performed By: ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID of Structure N or 4 EDS (Nonadb No Coerd No F B c M >=05 p <5u I -G,. - Ohrys Amphibole j Nonasb Ambig/ND Elements)

h if

StTUCt = > 0.5u > 5:1 Aspect Ratio Grid acceptance: 4= Positive diffraction pattern properfies conforming to ^^0% undissolved filter, overlapped or folded Totals <10% particulate coverage >50% coverage ate labcratory identification criteria obseiA'ed least 20 unfolded or overlapped grid squares <5% F B C ! M >5u 4= EDS spectrum conforming to laboratory holes or opaque areas identification criteria observed Clu’vsotile

F = Single Fiber AMPHIBOLES Amosite Amphibole t B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite M = MatriJi Actinolite Non-Identified NED = No Structures Detected

CITY_21MC100_003269363

NYC-WTC_000201877