NYC-WTC_000210546

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: Airtek Volume (liters): 1310 Lab Group #: 6149 Filter Tvpe / Filter Area: MCE 385 mm- Lab Sample #: 8 Grid Opening Size: 0.01124 Client Sample #: 0^3 Area Examined: 0.06744 mra-

GRID BOX: Maenification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 6 Analysis Date: 12/19/01

Analysis Performed By: ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID of Structure N or N EDS Nc (Nonadb F B C W >=05 u Chrys Amphibole Nonasb Ambig/ND No Coord <5u Elements)

7 T 2 K ■■

If 1/ 7]^ fl

Struct = > O.pp > 5:1 Aspect Ratio Grid acceptance: '1= Positive diffraction pattern properties conforming to <50% undissotved filter, oveitapped or folded Totals laboratory identification criteria observed <10% particulate coverage >50% coverage ate

4= EDS spectrum conforming to laboratory least 20 unfolded or overlapped grid squares <5% holes or opaque areas F B c M >5iJ

identification cnteria obsen/ed Chrysotile ■AMPHIBOLES Amphibole F = Single Fiber Amosite 8 = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite M = Matnx Non-Identified Actinolite MSO = No Structures Detected

CITY_DEP_WORBY_CANNATA_SUBP_000021382

NYC-WTC_000210546