NYC-WTC_000201893

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name; ■WCBOE Volume (liters): .1840 Lab_Grouj) #: 6608 Filter Type / Filter Area: MCE 38.5 mm’ Lab Sample #: / Grid Opening Size: 0.01124 Client Sample #: 07 Area Examined: 0.04496 mnV

GRID BOX: Magnification: ■ 20,000 GRID ID: Accelerating Voltage: lOO KeV # Grid Openings: 4 Analysis Date: 2/9/02

Analysis Performed By: MARK PEYSAKHOV

GO, Structure Structure Type Length ID O’ Structure N o' 4 ■ EDS (Nonadb No F B C >=05p .j :>=5p Chrys Amphibole i honasb j Ambig/ND i No Coord <5p Elements)

Struct = > Q.5 ,Li _> 5:1 Aspect Ratto Grid aoceplance;' ■ 9= Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Toials iaboratory identification criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F B C M >5^ 9= EDS spectrum conforming to laboratory holes or opaque areas identification criteria observed Chrysotile ■ AMPHIBOLES Amphibole F = Single Fiber Amosite B = Bunole (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) I Anthophyllite • Non-Asbestos Tremolite ■ M = Matrix Non-Identified Actinolite NSD = Mo Structures Detected

CITY_21MC100_003269448

NYC-WTC_000201893