NYC-WTC_000210653

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: ATC Volume (liters): 1300 Lab Group #: 5802 Filter Type / Filter Area: MCE 385 mm^ Lab Sample #: 7 Grid Opening Size: 0.01124 Client Sample #: 10 Area Examined: 0 06744 mm- GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 6

Analysis Performed By: ROMAN PEYSAKHOV

GO Structure Structure Type Length ID of Structure N or v EOS (Nonadb j No F B C M >=05 y >=5iJ Chrys Amphibole Nonasb Ambig/ND No Coord <5p Elements) j

// (f

6

Struct = > 0 5p >5 1 Aspect Ratio Gnd acceptance

7= Positive diffraction pattern properties conforming to <50% undissoh/ed filter, overlapped or folded Totals laboratory identification critena observed <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped gnd squares <5% F F B C M j >5p N= EOS spectrum conforming to laboratory holes or opaque areas Identification criteria observed Chrysotile 'amphiboles' Amphibole F = Single Fiber Amosite 8 = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite I Non-Asbestos I Tremolite ' Non-Identified M = Matnx NSD = No Structures Detected Actinolite if

CITY_DEP_WORBY_CANNATA_SUBP_000002869 NYC-WTC_000210653