NYC-WTC_000199418

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: \ Y(' BOE Volume (liters): 1928 Lab Group #.• 8760 Filter Type / Filter Area: MCE 385 mm- Lab Sample #: Grid Opening Size: 0.01124 Client Sample #: Area Examined: 0.04496

GRID BOX: Magnification: 20,000 GRID ID: Accelerating X'oltage: 100 KeV Analysis Date: 8'25/02

Analysis Performed By: ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID of Structure Nor V EDS 1--^ (Nonadb No F B C M >=05 p Chrys Amphibole Nonasb Ambig/ND No Coord E ementsi <5p

/ IS

-__ t I i I

Struct = > () 5p > 5.1 Aspect Ratio Grid acceptance

\'= Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals laboratory identif cation criteria observed <10% particu.ate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% [F B C M >5p 7= EDS spectrum conforming to laooratory holes or opaque areas identification criteria observed Chrysotile amphiboles'", Amphiboie । F = Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous I C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos [ Tremolite M = Matrix Non-ldentified । Actinolite i NSD = No Structures jeteued

CITY_21MC100_003033892

NYC-WTC_000199418