NYC-WTC_000198844

NYC 9/11 Public Portal Document

TEM Asbestos (air) Coun t Client Name: NYC BOE niters): 1805 Lab Group #: 8243 Filter . r Area: MCE 385 mm" Lab Sample #: 15 i; ig Size: 0.01124 Client Sample #: 15 iinined: 0.04496 mm^ GRID BOX: Ication: 20,000 GRID ID: AC: Voltage: 100 KeV # Grid Openings: 4 I.S Date: 6/23/02

Analysis Performed By: MARK PEYSAKHOV

GO. Structure Structure Type Length ve N or < EDS No >=05 p onasb (Nonadb F B C >=51J Chrys | - Ambig/ND No Coord <5p Elements)

L IK

Struct = > 0.5p > 5:1 Aspect Ratio Grid acceptance: V= Positive diffraction pattern properties confonning to <50% undissolved lilter, overlapped or folded Totals laboratory identification critena observed <10% particulaip coverage >50% cc /erage ate least 20 unfolded er overlapped grid squares <5% F B C M >5p ’/= EDS spectrum conforming to laboratory holes oropaqv ui-as identification criteria observed le AMPHIBUl.'ZS t F = Single Fiber Amosilij IS B = Bundle (<3 fibers <1 fiber diameter apart Crocid C = Cluster (>3 Intersections) Anthopl,. Hile JS Tremr'''.- M = Matnx Actin' ' .4 NSD = No Structures Detected

CITY_21MC100_003030637

NYC-WTC_000198844