NYC-WTC_000210450

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: EM&CA Volume (liters): 1300 Lab Group #: 6070 Filter Type / Filter Area: MCE 385 mm- Lab Sample #: 6 Grid Opening Size: 0.01124 Client Sample #: 006 Area Examined: 0.06744 mm- GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 6 Analysis Date: 12/9/01

Analysis Performed By: ROIVIAN PEYSAKHOV

GO. Structure i Structure Type Length ID of Structure N or v EDS No (Nonadb ! F B C M >=06 p >=5p Chrys Amphibole Nonasb Ambig/ND No Coord I <5u Elements)

Struct = > 0.5p _> 5:1 Aspect Ratio Grid acceptance: v'= Positive diffraction pattern properties conforming to <50% undissolved filter, overtapped or folded Totals laboratory identification criteria obsen/ed <10% particulate coverage >50% coverage ate

A- EDS spectrum conforming to laboratory least 20 unfolded or overlapped grid squares <5% F B I C M >5p holes or opaque areas ideniification criteria observed Chrysotile AMPHIBOLES Amphibole F = Single Fiber Amosite 9 = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous ■ C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite M = Matrix Non-Identified Actinolite NSD = No Structures Delected

CITY_DEP_WORBY_CANNATA_SUBP_000021275

NYC-WTC_000210450