NYC-WTC_000196841

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters'): 1920 Lab Group #: 9210 Filter Type / Filter Area: MCE 385 mm- Lab Sample #: 8 Grid Opening Size: 001124

Client Sample #: 10 Area Examined: 0 04496 mm-

GRID BOX: Magnification: 20,000 GRJDID: ?- Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 12/26/200

.Analysis Performed By: MARK PEYSAKHOV

GO Structure Structure Type Length ID of Structure Nor '/ EDS No (Nonadb F B C >=05 p : '=5p Chrys Amphibole Nonasb Ambig/ND No Coord <5p Elements)

Igtj XX .3 T /•

I ( •I------ 1r ' Htioto NO (trom 1 in o asbestos containing samples) Gnd acceptance Struct = > 0 5p >51 Aspect Ratio <50% undissolved filter, overlapped or folded Totals Positive ditfraction pattern properties conforming to <10% oarticulate coverage >50% coverage ate laboratory identification criteria observed least 20 unfolded or overlapped grid squares <5% holes or opaque areas F B C M M = EDS spectrum contorming to laboratory ideniification criteria observed Chrysotile i AMPHIBOLES Amphibole ■= = Stogie Fiber I Amosite B = Bundle (<3 fibers C fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite Tremolite Non-.Asbestos M = Matrix Actinolite Non-Identified NSD = No Structures Detected

CITY_21MC100_003043178

NYC-WTC_000196841