NYC-WTC_000216055

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1936 Lab Group 7233 Filter Type / Filter Area: MCE 385 mm- Lab Sample #: 7 Grid Opening Size: 0.01124 Client Sample #: 7 Area Examined: 0.04496 mm-

GKID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 3/27/02

Analysis Performed By: ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID of Structure Nory EDS No (Nonadb F B .0 M >=05 M Chrys Amphibole Nonasb Ambig/ND No Coord <5u Elements)

07 _____ // -Ji__ Z ZJ2Z it =

Struct = > 0.5p _> 5:1 Aspect Ratio Grid acceptance: <= Positive difiraction patern properties conforming to <50% undissolved filter, overiapped or folded Totals laboratory identification criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded or overiapped grid squares <5% . F B C M >5p ^= EDS spectrum conforming to laboratory holes or opaque areas identificaton criteria observed Chrysotile ’ AMPHIBOLES Amphibole F = Single Fiber ) Amosite B = Bundle (<3 fibers <1 fioer diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos T remolite M = Matrix Non-Identified Actinolite NSD = No Structures Detected

CITY_21MC1OO_OO2876392

NYC-WTC_0002 16055