TEM Asbestos air sample results, NYC BOE, Feb 2002

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet C iient Name: WC BOE Volume (liters): 1824 Lab Gronp #: 6779 Filter Type / Filter Area: MCE 38? mm- Lab Sample #: 46 Grid Opening Size: 001124 Client Sample #: F-46 Area Examined: 0 04496 mm- GRID BOX: Magnification: 20.000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 2/22/02

Analysis Performed By: ___A72_ ROMAN PEYSAKHOV

GO Structure Structure Type Length ID of Structure N or EDS No {Nonadb F B C M >=05 p :>=5(j Chrys Ampliibole Nonasb AmbigZND No Coord <5p Elements)

/ vy 2^ szm 7g5 : 7/ A y yf

Stiuct = > 0 5g > 5 I Aspect Ratio Grid acceptance v= Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals laboratory identification criteria observed <10% particulate coverage >50% coverage ate

EDS spectrum conforming to laboratory least 20 unfolded or overlapped gnd squares <5% holes or opaque areas F B c M >5p identification cnteria observed Chrysotile AMPHIBOLES Amphibole F = Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite M = Matnx Non-Identified Actinolite NSD = No Structures Detected

CITY_21MC1OO_OO3O88983

NYC-WTC_000190298