NYC-WTC_000229160

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name? NYC BOE Volume niters): 1920 Lab Group #; 7938 Filter Type / FUter Area: MCE 385 mm" Lab Sample #: 3 Grid Qpenine Size: 0.01124 Client Sample #: 03 Area Examined: 0.04496 mm" GRID BOX: Mt 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 6/2/02

Analysis Performed By: MARK PEYSAKHOV

GO. Smjcture Structure Type Length 10 of Structure Nw -J EDS [Nonadb No F B C M >=0Sp >=5y Ctirys Amphboie Notasb AintegW No Coord <Sm Elemenla)

-S' c—

Struct = > O.Sp > 5:1 Aspect Ratio Gild acceptance: yl=PosiflvedifffacB« pattern pwperfes cortfonning to Totals laboratoiy idendteadon criteria observed <10% partteulate coverage >50% coverage ata least 20 unfolded or overlapped grid squares <5% F B C M >5m EDS spectnm confaming to laboratory holes or opaque areas identification aiteria obsaved Chrysotile I AMPHIBOLY Amphibole F = Single Fiber ; Amosite 6 = Bundle (<3 fibeis <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) Anttidphyllite Non-Asbestos Tremolite M = Matrix Actinolite Non-Identifietl NSD - No Struettaes Delected

CITY_21MC100_002902330

NYC-WTC_000229160