NYC-WTC_000228922

NYC 9/11 Public Portal Document

IZMAsbestoslairlCountSheet Client Name: NYC BOE Volume (liters): 1808 Lab Group #; 7750 Filter Type / Filter Area: MCE 385 mm^

Lab Sample #: 5 Grid Opening Size: 0.01124 ■Clicat Sample #: 07 Area Examined: 0.04496 nmr GRID BOX: //s£l Magnification; 20,000 GRID ID: Accelerating Voltage: 100 KeV Grid Openings: 4 Analysis Date; 5/15/02

Analysis Performed By: ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID of Structure Norv EOS No {Nffliadb F B C M >=05 M >=5li Chrys Amphibole Nonasb A(!*ig/ND Coord <5p Elements)

5® _f/___

/t -3__

/C -

I 4

- Struct = > 0.5p >5:1 Aspect Ratio Grid acceptance: V= Positive diffraction pattern properties conformirtg to <S0% undissolved fiflar, overiapped or folded Totals laboratory identiftcabcn criteria observed <10% paniculate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F BTC M >5u . '/= EDS spectrum contonning to laboratory holes or opaque areas ------ 1------ identification criteria observed Chrysotile amphiboles' Amphibole F = Single Fiber Amosite B = Bundle (<3 liters <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 IntersecBons) Anthophyllite Non-Asbestos Tremolite M = Mainx Actinolite Non-Identified MSO = Ho Structures Detected

CITY_21MC100_002901902

NYC-WTC_000228922