TEM Asbestos air sample results, NYC BOE, Mar 2002

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1832 Lab Group #: 6933 Filter Type / Filter Area: MCE 385 mm- Lab Sample #: 18 Grid Opening Size: 0.01124

Client Sample #: AreaENarni n ed: 0,04496 mm- A

GRID BOX: Ma«nit'ication: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 3/5/02

Analysis Performed By: ROMAN PEYSARHOV

GO ! Structure Structure Type Length ID of Structure Nor 9 EDS i...... ..... (Nonadb I No F ! B C ; M I Y=5j ) Chrys AmphiPoie ' Nonasb I Ambig/ND i <5p ! Elements)

vT .aYY' ! zzs /tz

Struct = O’ I).opt > 5:1 Aspect Ratio Grid acceptance: 'jb Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals <to% particulate coverage >50% coverage ate iaboratory identification criteria observed least 2C unfoloeo or overlapped grid squares <5% F ■fi C j M I >5o EDS spectrum conforming to laporatory holes or opaque areas laentification criteria observed Olirvsoiile 1— i A MIN 11 DOLES Xiiipliibole I- = Single hioer Amosite 3 = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ainbiuiioiis Anthophyllite Non-Asbestos C = Cluster i>3 Intersections! T remollte M < Matrix Non-klciiiu'icd Actinolite NSD = No Structures Detected

CITY_21MC100_0 03102291

NYC-WTC_000183226