NYC-WTC_000228729

NYC 9/11 Public Portal Document

TEMAsbestosfair) Count Sheet Ctjent Name: NYC BOE Volume (liters): 1824 Lab Group #: 7602 Filter Type / Filter Area: MCE 385 mm- Lab Sample#: 17 Grid Opening Size: 0.01124 Client Sample #: 19 , Area Examined: 0.04496 mm*

GRID BOX: Magnification: 20,000 GRID IP: Accelerating Voltage: i 00 KeV # Grid Openings; 4 Analysis Date; 5/1/02

Analysis Performed By; f\/' ROrMAN PEYSAKHOV

GO, Structure Structure Type Length ID of Structure N or 'Z EOS

Nd Coord No F B c M >=05 p <6p :>=5m Chrys Amphibole Nonasb AmbigiND (Nonadb Elententsj ! i

+ 1

Struct = > 0.5|u > 5:1 Aspect Ratio Grid acceptanee: Positive diffraction pattern properties conforming io <50% undissolved ffier, overtapped or folded Totals laCoraiory identitotion criisria observed <10% particulate coverage >60% coverage ate least 20 unfolded or overiapped grid squares <5% F a C ! M i EDS spectrum conforming Id laboratory Mes or opaque areas identification criteria observed Chrysotile AMPHOOLES Amphibole F = Single Fiber Amrssite B - Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous 1 Antfiophyiiite T C = Cluster (>3 Intersections) Non-Asbestos I Tremolite M = Matrix Actinolite Non-Identified NSO = No Siruciures Detecteil

CITY_21MC100_002901578

NYC-WTC_000228729