NYC-WTC_000207411

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: NYC BOE Volume (liters): 1920 Lab Group #: 8036 Filter Type / Filter Area: MCE 385 mm^ Lab Sample #: 12 : . Grid Opening Size: 0;0ri24’ Client Sample #: 12 Area Examined: 0.04496 GRID BOX: Magnification: 20,000 ... GRIDID: Accelerating Voltage: lOO KeV # Grid Openings: 4 Analysis Date: 6/10/02 ■ ’

Analysis Performed By: fx# ROMAN PEYSAKHOV.

GO. Structure Structure Type Length 1 ID of Structure N or y .EOS No (Nonadb'. F B C M >=05 p >=5p Chrys Amphibole Nonasb Ambig/ND No Coord <5p Elements)

2 I

Struct = > 0.5(1 .> 5:1 Aspect Ratio Grid acceptance: '/= Positive diffraction pattern properties conforming to *50% undissolved filter, overlapped or folded . Totals laboratory identirication criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F B C M >5p , '/= EDS spectrum conforming to laboratory holes or opaque areas idenbfication criteria 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 = Matrix Actinolite Non-Identified ■ I NSO = No Structures Detected

CITY_21MC100_003015152

NYC-WTC_00020741 1