NYC-WTC_000219489

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC' BOE Volume (liters): i >08 Lab Group #: 08«5 Filter Type / Filter Area: MCE V Lab Sample #: 3 Grid Opening Size: 0 (1! '24

Client Sample #: 11 Area Examined: 0 04490 mm-

GRID BOX: Maanifieation: 20.0(1(1 GRID ID: Accelerating Voltage: loO Ke\ # Grid Openings: 4 Analysis Date: 3 2/02

Analysis Performed By: MARK PEYSAKHOV

GO Structure Structure Type Length j iD of Structure N or . cDi No F B C M «05iJ >=5p i Chrys Amphibole : Nonasb i AmOigiNO '^nau,. \o Coord <5m —-------------- -------------—

2?. -3

Struct = > O.ip > 5;1 Aspect Ratio Grid acceptance: v = 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 unfolded or overlapped grid squares <5% F ! B ! C i M ! Cu \ = EDS spectrum conforming to laboratory holes or opaque areas Identification cntena obseived Chrysotile i AMPHIBOLES .Amphibole : F = Single Fiber Amosite Crocidolite .Ambiguous i B = Bundle (<3 fibers <1 fiber diameter apart C = Cluster (>3 intersectionsi Anthophyllite Non-.Asbeslos i T remolite M = Matrix Actinolite j Non-ldeiitified i NSO = No Structures Detected

CITY_21MC100_002881179

NYC-WTC_000219489