NYC-WTC_000219285

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Voki:iie (liters): 1824 Lab Groiii) #: 753S Filter Type T .Iter Area: MCE 385 mm^ Lab Sample : 9 Grid ()p .iiing Size: 0.01124 Client Sample #: 11 Area xamiiied: 0.04496 mm^

GRID BOX: ■Mil' nit'ication: 20,000 GRID ID: Acceleratr; "Voltage: 100 KeV # Grid Openings: 4 A a aivsis Date: 4/25/02

Analysis Performed By: mark peysakhov

Structure Structure Type ' Length IC nf Tucture Nory EDS GO. (Nonadb No F BCM -05 p =5p Chrys Amphic-v - Nonasb Ambig/ND No Coord Elements) .<5M

Struct = >0.5p >5:1 .Aspect Ratio Gnc acceptance;

Positive diffraction pattern properties conforming to <50 'S undissolved filter, overlapped or folded Totals laboratory identification criteiia observed <1C 0 particulate coverage >50% coverage ate lea;; 20 unfolded or overlapped grid squares <5% F B C M >5p 7= EDS spectrum conforming to laocratory hole; -or ooaque areas identification criteria ooserveo •••.lilt' ■.MPHIBQLES :hi)lc F = Single Fiber Amosite .\i . .'.lOLlS B = Bundle (<3 fibers <"' liber diameter apart Crocidolite C = Cluster (>3 Intersections) .Anthophyllite Non-.'. icstos T lemolite M = Matrix Non- ; M’ied Actinolite NSD = No Structures Delected

CITY_21MC100_002879627

NYC-WTC_000219285