Document Z4v1n7nb591XxqMGVXjDr3yNL

as. elevator shafts and stairwell* shall be enclosed.Jn a manner which shall prevent the. escape of fiber-containing material from the norklnj area. b)The entire Sprayed area, all ledges and surfaces Including tarpaulins within the enclosure shall be thoroughly, vectnned upon cMpljstIon of: the spraying., operation and ' taaedtately before the enclosure Is dismantled. Section 228.113 ' Enclosure for Asbestos Construction a) the cutting, triaatng, fitting or stripping . . of asbestos-containing material In the ' -construction, alteration or-.repair of a ' .structure which Is done at /{he. site of such ' .structure In an area open.to the atmosphere . shall be conducted, ul thin a/special enclosure designed to preclude the escape of asbestos '-'fiber from the toaedlate area of such " --enclosure. ' b) The mechanical exhaustion of. dust from such enclosure to the ambient air .Is prohibited .unless such exhaust system Is equipped with a ' properly Sized fabric filter for dust /collection or an equivalent.device as approved by the Agency. s&tlon 228.134 No Visible Emtsslon .Compliance with' sections 228.132. and 228.133 notwithstanding, visible emissions of ftber-contalnlng material In an area open to the atmosphere shall be considered a violation. Section 228.13S Preclude exposure to Circulating Air Asbestos-containing material applied In the construction, alteration or repair of a structure shall be coated with a sealant, provided with a cover or Installed In some other -manner so as to preclude emission-of the asbestos-containing material to.'.the circulating air. Any plenum or other structure coaled with or containing asbestos-containingi Insulation and bscd In the circulation of air lit a'building sftall be thoroughly cleaned of all. debris and waste Insulation. ' ' * . SUBPART 0: DEMOLITION * > * Section 228.141 Necessary and Practicable Safeguards Where the risk of public exposure to asbestos fiber from the dislodging of ;asbestos-conta1ning materials Is present, no demoitttoiuor a structure shall be Initiated unless' all safeguards necessary and practicable to reduce the emission of dust are taken, such procedures shall Include, but are not necessarily limited to: a) Boilers and pipes and steel members insulated :or fireproofed with asbestos-containing ' material shall be wetted and stripped beford toppling of walls Is begun, ibis procedure -- shall be followed, where practicable, as to all other asbestos-lined surfaces. S.ch asbestos waste shall be. immediately bagged and disposed.of In accordance with Section 228.121(d). b) tdien. demolition by toppling occurs such reasonable enclosure for dust emission control as is compatible with the character of the structure shall be outoyed. c) Before the.demolition or toppling of any . section of-wall-of the structure; adequate wetting to suppress the dust shall be . employed........ d) Asbestos-containing debris shall not be dropped or thrown from any floor but shal 1 be transported by~dut/-Cighi-chutes or-buckets . Asbestos-containing debris In chutes or buckets shall .be sufficiently wetted to preclude-.dust dispersion at the-point of discharge.. ? e) -All asbestos-containing debris shaVT-be" thoroughly wetted before loading- into trucks, other vehicles or containers. During transport-such waste shall be enclosed, or.......... covered so as.to prevent mist dispersion. Asbestos-containing debris shall be disposed by burl-aVat- a sanitary landfill. -- submrt-e: ttANUFACiwiNG . Section 228:1S1 Emission Standards: Sampling and Counting Procedures A factory, plant or-enterprise which engages in the processing-or manufacturing, at any . 'asbestos-containing product shall discharge no . visible emission of particulate matter from such manufacturing or-process1ng~1nte-'tbe ambient-*!*and shall.emit no -concentrations of asbestos .fiber into the ambient air- -In excess of 2 fibers per cubic ceaMmeisr of air........... a) Sampling of emissions shall be by the membrane filter method and according to the procedures recomnended In the ASIC Power Test Code 27->1957.. or other procedures generally accepted by persons' know!edgeatrle' hr-the-- state of the art.. b) Counting .shall.be according to the procedure outlined In Edwards. 6.H.. and lynch. J7(CT. The Method Used by the U.S. Public .Health Service for Enumeration of Asbestos Dust on Membrane Filters." Ann. -Occupational Hyg. (Oxford) . TTHT: T-ff; Jzwr m8rwlth-~2-..... .Melds per sample, counted at random-using phase contrast microscopy at 4)0 a magnification and counting only fibers S microns or greater In length, with a length to breadth ratio of 3 to 1 or greater.' - IS1 -