NYC-WTC_000210654

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 #: 18 Grid Opening Size: 0.01124 Client Sample #: 21 Area Examined: 0 06744 mm- GRID BOX: Magnification: 20,000 GRIDID; Accelerating Voltage: 100 KeV # Grid Openings: 6

Analysis Performed By: ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID of Structure N or \ EDS (Nonadb No F B C M >=05 M :>=5p Ctirys Amphibole Nonasb Ambig/ND No Coord <5m Elements) |

-7 Cl____ II y lt Il____ II 7

L. Struct = > 0 5|i ■> 5 1 Aspect Ratio Gnd acceptance Positive diffraction pattern properties conforming to <50% undissolved filter, overlap^ or folded Totals ..._________________ _ <10% particulate coverage >50% coverage ate laboratory identification cntena observed least 20 unfolded or overlapped gnd squares <5% F B C M >5|J EDS spectrum conforming to laboratoiy holes or opaque areas identification cntena observed Chrysotile ■AMPHIBOLES Amphibole F = Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter apart Croadolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos I Tremolite I M = Matnx NSO = No Structures Detected Acb oolite Non-Identified I

CITY_DEP_WORBY_CANNATA_SUBP_000002877

NYC-WTC_000210654