NYC-WTC_000229199

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name; NYC BOE Volume (liters); 1824 Lab Group #: 7978 Filter Type f Filter Area: MCE 385 mm^ Lab Sample #: 16 Grid BiBnIng Size: 0.01124 Client Sample #: 18 Area Examined: 0.04496 mm*

GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 6/5/02

Analysis Performed By; ROMAN PEYSAKHO V

GO. Structure Structure Type Length ID of Structure Nor EDS No {fJonadb F B C M >*05 u >=5m Chrys Ampliibote Nonash Arnb^O Coord <Sm Elements)

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. i I Struct “> 0.51X > 50 Abject Ratio Gnd acceptance: Positive diffraction pattern properties confomwg to <50% uiWissolved fSter, overtapped or fbided Totals taboratoiy identification crtteria observed <10% parScutate cwerage >50% coverage ate least 20 unfolded or overtapped grid squanes <5% F B C M >5p EDS spectrum informing to laboratory holes or opaque areas identification criteria observed Chrysotile AMPHIBOLES Amphibole’ F= Single Fiber Amosite B = Bundle i<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite M = Matra Actinolite Non-Identified NSD 3 No Structures Detected

CITY_2IMCl0 0_0 00491688 NYC-WTC_000229199