NYC-WTC_000222401

NYC 9/11 Public Portal Document

l EM Asbestos (air) Count Sheet Client Name: NYCB^ >!; Volume niters): 1840 Lab Group #: 7890 Filter Type / Filter Area: MCE 385 mm^ Lab Sample #: 9 Grid Opening Size: 0.01124 Client Sample #: 09 Area Examined: 0.04496 mm^ GRID BOX: Magnification: 20,000 GRID ID: Accelerating VoItage: too KeV # Grid Openings: 4 Analysis Date: 5/28/02

Analysis In formed By: ROMAN PEYSAKHOV

GO. structure S' .i:-..'reType Length ID of Structure Norv EDS (Nonadb No F C M >=05 p Chrys Amphitwle Nonasb Ambig/ND ___ No Coord <5p Elements)

9^ Si I I r

Struct = >0.5p >5:1 Aspect ICi: Grid acceptance: Positive diffraction pattern proper.co ng to ^50% undissolved niter, overlapped ot folded Totals laboratory identification criteria obser/od <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F B C M >5p '/= EDS spectrum conforming to lab irato' holes or opaque areas identification criteria observed Chrysotile AMPHIBOLES Amphibole F = Single Fiber Amosite B = Bundle (<3 libers <1 fiber diamei",r ; Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite M = Matrix Non-Identified Actinolite NSD = No Structures Detected

CITY_21MC1OO_OO2888969

NYC-WTC_000222401