NYC-WTC_000201786

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: NYC BOE r Volume (liters): 1840 Lab Group #: 7009 Filter Type / Filter Area: MCE 385 mm- Lab Sample #: 9 Grid Opening Size: 0.01124

Client Sample #: 9 Area Examined: 0.04496 mm=

GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: lOOKeV # Grid Openings: 4 Analysis Date: 3/10/02

Analysis Performed By: ft 7 2 7. ROMAN PEYSAKHOV

GO. Structure Structure Type - Length ID of structure N or 2 EDS ■ (Nonadb No F B C M >=05 p I >=5(J Chrys Amphibole Nonasb Ambig/ND No ' Coord <5p Elements)

5“

■i

Struct = > 0.5g > 5:1 Aspect Ratio Grid acceptance: 7= Positive diffraction pattern properties conforming to' <50% undissolved filter, overlapped or folded Totals -■ laboratory identification ■ criteria - observed = <10% particulate coverage >50% coverage ate least 20 unfoloed or overlapped grid, squares <5% F B C M L - EOS spectrum conforming to laboratory holes or opaque areas identification criteria observed Chrysotile I AMPHIBOLES Amphibole F = Single Fiber L Amositel B = Bundis [<3 fibers <1 fiber diameter apart Crocidoilte Ambiguous J: t C = Cluster (>3 Intersections) ) t Anthophyllite Non-Asbestos 7 ■ M = Matrix / -t f Tremolite Actinolite Non-ldentified ■ ; NSD = No Structures Detected f f 11

CITY_21MC100_003269101

NYC-WTC_000201786