NYC-WTC_000202536

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1928 Lab Group #: . 87597 11 Filter Type / Filter Area: MCE - 385 mm" Lab Sample #: 5< Grid Opening Size: 0.01124 Client Sample#: 05 Area Examined: 70.04496 mni’ GRID BOX: Magnification: 20 OOO GRID ID: Accelerating Voltage: lOG KeV # Grid Openings: 4 Analysis Date: 8/25/02 .

Analysis Performed By: ROMAN PEYSAKHOV

•GO. Structure Structure Type Length ID of Structure N or EDS No (Nonadb F B' C M >=05 p >=5iJ Chrys Amphibole Nonasb Ambig/ND No Coord <5p ■ Elements)

g I

i <4

Struct->0,5)1 >5:1 AspectRatio Grid acceptance: ■

v= Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals laboratoiy identification criteria observeo <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F B C- M >5p V=EDSspectrum conforming to laboratcry holes or opaque areas identification criteria observed < Chrysotile '"amphiboles Amphibole F = Single Fiber 7 Amosite ' • S = Bundis(<3 fibers <1 nber diameterapart Crocidolite Ambiguous C' = Cluster (>3 Intersections) Anthophyllite L ;i Non-Asbestos Tremolite : M = Matrix ; Non-Identified Actinolite ■ ' NSD =Ao Structures Detected

CITY_21MC100_003273175

NYC-WTC_000202536