NYC-WTC_000229000

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: -NYC BOE Volume (liters): 1832 Lab Group #: 7807 Filter Type / Filter Area: MCE 385 mm^ Lab Samule #: 10 Grid Opening Size; 0,01124 Client Sample #: Area Examined; 0.04496 mm- GRID BOX; Magnification: 20 000 GRID ID: Accelerating Voltage: lOOKeV # Grid Openings: 4 Analysis Date: 5/20/02

Analysis Performed By: ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID of Structure Nor\ EDS I No (Nonadb i F 8 C M >=5(J Chrys Nonasb Amb(g/NO No Coord <5p Elements) i

a tj z/ 2 i- -t

1

I

'‘"I I Struct = > 0.5p > 5:! Aspect Ratio Grid acceptance: ’/= Positive dilfraction pattern properties conforming to <50% undissolved filler, overlapped or folded Totals laOoratory identification criteria observed <10% particulate coverage couetaga ate (easf 20 unfolded or overlapped grid squares <5% F B C >5p ■Js EDS spectrum conforming Io laboratoiy holes or opaque areas identification enteria observed Chrysotile amphiboles Amphibole F = Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidotile Ambiguous C = Custer (>3 Intersections! Anthophyllite Non-Asbestos Tremolite M = Matnx Actinolite Non-Identjfied N3D = Me Structures Detected

CITY_21MC100_002902027

NYC-WTC_000229000