NYC-WTC_000212432

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: >ryc BOE Volume (liters): 1936 Lab Group #: •”98 Filter Type / Filter Area: MCE 385 mm^ Lab Sample #: .1 Grid Opening Size: 0.01124 C lient Sample #: 04 Area Examined: 0.04496 mm-

GRID BOX: Magnification: 20,000 (ilUD ID: Accelerating Voltage: 100 KeV ‘ fr Grid Openings: 4 Analysis Date: 4/13/02

Analysis Performed By: ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID of Structure NorN EDS (Nonadb No F B C M >=5p Chrys Amphibole Nonasb Ambig/ND No Coord <5p Elements)

3/1/—

Struct = > 0.5p > 5:1 Aspect Ratio Grid acceptance: \ - Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals leboratoiy identification criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F B C M >5m \ = EDS spectrum conforming to laboratory holes or opaque areas icentilication criteria observed Chrysotile AMPHIBOLES Amphibole F = Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos T remolite M = Matnx Non-Identified Actinolite NSC = No Structures Detected

CITY_21MC100_002866526

NYC-WTC_000212432