NYC-WTC_000228379

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: N YC BOE Volume (liters): 1840 Lab Group #: 6465 Filter Type / Filter Area: MCE 385 mm- Lab Sampte #: 9 Grid Opening Size: 0.01124 Client Sa 1111)Ie #: 09 Area Examined: 0-04496 mm-

GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 1/27/02

Analysis Performed By: ROMAN PEYSAKHOV

GO Structure Structure Type Length ID of Structure N or 9 EDS (Nonadb No F B C M ”05 M ! >=5li Chrys Amphibole Nonasb Ambig/NO i No Coord i <5m I Elements)

F // Y /y"

+I t

1t 1

Struct = > 0.5m 5; I Aspect Ratio Gnd acceptance- Posilivs diffraciioflpattem properttes conforming to <»* filter, overlapped or folded Totals laboratory identification criteria observed A a* <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F B C M >6p n/s EDS spectrum conforming to laboratoiy holes or opaque areas Identilication criteria observed Chrysotile amphiboles Amphibole F-Single Fiber Amosite B • Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C » Cluster (>3 intersections) Anthophyllite Non-Asbestos T remolile M = Matrix Actinolite Non-Identified NSD = No Structu'es Detected

CITY_21MC100_002900115

NYC-WTC_000228379