NYC-WTC_000196891

NYC 9/11 Public Portal Document

TEM AsbestDs (air) Count Sheet Client Name: NYC BOE Volume (liters): 1920 Lab Group #: 9090 Filter Type / Filter Area: MCE 385 mm- Lab Sample #: 11 Grid Opening Size: 0.01124- Client Sample #: 13 Area Examined: 0.04496 mm-

GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 11/11/02

Analysis Performed By: ROMAN PEYSAKHOV

GO Structure Structure Type Length ID of structure N or V EDS No (Nonadb F 8 C M >=05 p :>=5p Chrys Amphibole Nonasb Ambig/ND No J Coord <5p Elements)

If (f 62. Z ff

-1 i I

Photo No (from 1 in 5 asbestos containing samples) Z Gnd acceptance Struct = > 0 5p > 5 1 Aspect Ratio undissolved filter, overlapped or folded Totals V= PosiPve diffraction pattern properties conforming to <10% particulate coverage >50% coverage ate laooratory identification critena observed least 20 unfolded or ovenapped gnd squares <5% F B C M >5u holes or opaque areas v'= EDS spectrum conforming to laboratory Chrysotile identificatron catena observed AMPHIBOLES ; Amphibole F = Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) i Anihophyllite Non-Asbestos Tremolite M = Matnx Non-ldentified Actinolite NSD = No Siructures Detected

CITY_21MC100_003058046

NYC-WTC_000196891