DOH/DEP asbestos fact sheet draft, 105 Duane Street

NYC 9/11 Public Portal Document 12/11/2001 17:05 FAX 212 353 8306 ATC I1004 ,

AMERICAN $=STY PC TE8t1WO AND MATaP.IAI.S Designation: D 5755-95 5818 Moos 9i. Pi etphis. Ps 19103 8aandw M. Oopyr524 A5TM newI+ded from the Amaal Seek of A$TMwet ti pinheadIna* eune t eenblned Inures. arpoar a dnr NMa adrion

Standard Test Method for Microvacuum Sampiing and Indirect Analysis of Dust by Transmission Electron Microscopy for Asbestos Structure Number Concentrations' Ttri6 easveHlee b isww undv Ibe need deldgnstian Co 3755; the number immcdlately tb lowing the dlatioe indiemes the year at edgjnal adoption or. in ttu ease of reidon, the year oflea lev6lon. A nember ie ymennhesee indloa the year of filet renpytova1. A anpermript epalon t,) indicates an sdieoriat Coup since the Ism revision or r approval.

I. Scope responsibility of the user ojtkis standard to establish appro- 1.1 This test method covers a procedure to (a) identify priate sufity and health practices and determine the applica- asbestos in dust and (b) provide an estimate of the cone s- bility of regulatory ltmttation: prior to use. uation of asbestos in the sampled dual reported as the number of asbestos structures per unit area of sampler! 2. Referenced Documents surface. 2.1 ASTMStandards. 1.1.1 If an estimate of the asbestos mass is to be deter- 1) 1193 Specification for Reagent Waters mined, the user is referred to Test Method D 5756. D 1739 Test Method for the Collection and Measurement 1.2 This test method describes the equipment and proce- of Dustfal (Settleable Particulate Matter)3 dures necessary for sampling, by a microvacuum technique, D3195 Practice for Rotameter Calibration3 non-airborne dust for levels of asbestos structures. The 1)3670 Guide for Determination of Precision and Bias of non-airborne sample is collected inside a standard fiber Methods of Committee, D-223 membrane casette from the sampling of a surface area for P5756 rest Method for Microvacuum Sampling and dust whidr may contain asbestos. Indirect Analysis of Dust by Traemiscion Electron 1.2.1 This procedure uses a microvacuuming sampling Microscopy for Asbestos Mass Concentrations technique. The collection efficiency of this technique is unknown and will vary among substrates. Properties inf n- 3. Terminology encirrg collection efficiency include surface texture, adhesive- 3.1 De ititfM neen, electrostatic properties and other fhctors. 3.1.1 asMrt(form—a special type of fibrous habit in which I3 Asbestos identified by transmission electron micros- the fibers are separable into thinner fibers and ultimately copy (TEM) is based on morphology, selected area electron into fibrils. 77ns habit accounts for greater flexibility and diffraction (SAED), and energy dispersive X-ray analysis higher tensile strength than other habits of the same mineral. (EDXA). Some information about structure size is also For more information on asbestifomt nom, see Red§ determined. (IV (2) and (3)- 1.4 This test method is generally applicable for an esti- 3.1.2 asbestos—a collective term that describes a group of mate of tIre concentration ofasbecstos structures starting from naturally occurring, mac, highly fibrous, silicate domi- approximately 1000 asbestos structures per square centi- nated minds, which are easily separated into long, thin, flexible fibers when crushed or processed. 1.4.1 The procedure outlined In this test method employs a14 indirect sample preparation tecltmiquc. It is intended to D ol't—I»dodct3 in the dellaition are the aebesdRom varieties disperse aggrcgyttcd asbestos into fundamental fibrils, fiber ooal 1 Ibe (cba~oti»~ ) (creeldoiheb gnmedte (gnmcrho u ) anIhottyIEte (aml+o0hyIlita ORMONDs) truer kc (fro bundles, ms s or matrices that can be more accurately asbrmatug and aetmdiee ( hwtth aabm teed). The mrdtibole mineral quantified by trimstascion electron microscopy. However, as ooapoodosa era ddlaad aetomding to numeuclature of the Ina with all indirect sample preparation techniques, the asbestos tional Misnaulogloni Amoc3s13oa a). observed for quantification may not rat the physical Artistes aundeal Abatact Sovloe No.' form of the asbestos as sampled. More specifically, the Ct~oft LMIZy4 procedure described neither creates nor destroys asbestos, Creddo~p 12001.284 but it may after the physics! form of the mineral fibers. Gramdm Aebmim 12172-73-5 Antbortolihe Aheaee 7753667.3 1S The values stated in Sl Writs are to be regal as the Trwdtro Atbotos 7753666" standard. The valves given in parentheses are for Informa- Ass Aeboos 77935.56.4 tion only. 1.6 7*Lr Ord does not purport to address ail of the 3.1.3 Jade—a single fiber that cannot be separated into safer}' concerns, lj any, assoc1aie4 with us use It is the 2AmmdBoarstfASIMS von 11.01. 3Aawad NO& 4 "AS7S/ Vol 11.03. ''Ibis ate. melded la imdar the jmisdkton Or ASIM Comndttee DM on 475e beldfm aei tgtd in puuvhheses iefrr m the U ar nTne om at the end end ofIbisU e mehpd. aaaD~ Sentjlh and Anairab Of A*weot. 'The Aunt various of the minute indicsW in 9.1.3 rove Canso edition oPpmved Avtiast 1S. 1998. Pabrated Oeio6a 1998. dllraenl dtami®t Abatoct Savior (CAR numbaa.

NYC-WTC 000125904