NYC-WTC_000227946

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Clienr Name: NYC BOE Volume (liters): i 340 Lab Group #: 6832 Filter Type / Filter Area: MCE 285 mm- ! Lab Sample #: 7 Grid Opening Size: 0.0 H 24

Client Sample #: 02 Area Examined: 0.04496 nim-

GRID BOX: Magnification: 20.000 GRID ID: Accelerating Voltage: 100 Ke\’ # Grid Openings: 4 Analysis Date: 2/26/02

Analysis Performed By: _J^Y_ ROMAN PEYSAKHOV

GO Structure Structure Type Length ID of Structure N or V ' EDS No Anbig/ND { F B C M >=05 p '=5u Chrys Amphibole Nonasb 1 Eiemenisl No Coord <5p sZ zz^ Y

Struct = > 0,5p > 5:1 Aspect Ratio Grid acceptance: A- Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals laboratery Identification criteria observed <10% particulate coverage >50% coverage ale least 20 unfolded or overtappad grid squares <5% F B C M I >5u "7= EDS spectrum conforming to laboratory holes or opaque areas identification cnteria observed Chrysotile AMPHIBOLES Amphibole i F = Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite M = Matnx Actinolite Non-Identified NSD = No Structures Detected

CITY_21MC100_002899493

NYC-WTC_000227946