Document DG39VzXKX2B44r3KDQbQ83NYn

1044 a a .2H b63. a 5 90sH5 Pi S 3 i 0 .3 i n *5 3 >, 0 *0 M CHAPTER 46 *,Q5 -s^ a ?l 1 > i b Mia a H0 2ec*Oa,,00 20 0 -* 0 g 59 ** S| Is IT a b l e 2. A G u id e to V e n t il a t io n R a te s for T y p ic a l n d u s t r ia l E q u ip m e n t Slate or Local Regulations Should be Consulted and Followed Where Higher Ventilation Rates are Specified fOc H0 |fe . 0H ?- e * A * .a > 3 3 0 0 -oo K o ft & "a Is If 'its s| =CO ^ m' O i (2' 'S 0 *3 1 H "3 1 o & 0 z 13 sBECSdk <D 3 SI OA O0 OS 3 0 Abrasive blast rooms 1 shot) Abrasive blast oabine Asbestos Carding .. Spool winding Barrels--Drums (fill! ing material by sco Belt conveyors Bins %(olosed top) Bucket elevators Ceramics Dry pan Dry press Aerographing Fettling, brushing, and unload S-o 0 3<b0 1 A >0 bd 73 a8 Tight enclosure (usually in roo Tight enclosure openings Enclosure Local Hoods Booth or enclos spillage hoppe Local Hood Booth Connect to bin l feed point Local Hood Booth with saw Enclosure Local at die Local at die At supply bin Booth Downdraft or s e0e A 3 0 3 b t0do s 2^ O ^0 S0 7eL3a 0 '0 0 A *f "3 *0 >> ^3 O ag 73 > 2 us -- cs c >0 >o 1 0 0 PhD to u0 2s 21 2a j0s*aa S3 oSO. to-^*33 0a 0 73 If Jj 0. as If Sj 0 .5 ' |0 cfm per mac! i cfm per spool a a 0 30 0aa0 00 cc 0 aa4> aj 00 00 7T aa * 3 0l. 0 0 3 a 8 ^ I 8a d I ~ 0 elt speeds less t foot of belt wi< fpm through over 200 fpmwidth but not open area 50-200 fpm th points 0 cfni per sq ft section 00 cfm 50 fpm at face 00 fpm througt 00 cfm 00 cfm 00 cfm 00 fpm (face) 00-150 cfm per producing ope +> 3 73 0 3 0 11 0 ft O- 'o a e| si > . O O AMSO si >J S-a&Ss 0 s t0e 1 0 8 0 fpm-350 cfm per not lesB than 150 | ea. Belt speeds 1 per foot of belt 200 fpm through to s ig la ** 0 io0 f7S3 73 i L* 0 A 3 au *J e > ~0 ^TJ aOu 3500 3500 3000 3000 3500 . 3500 35Q0 3500 3500 P5 * (2 Ref. ini co Con CO O MC |J| O--O 0Si"5. - o S3 t-" 3 M`2t3t3 <3 g.2 8 8 1OO CO r-*0f "-5003-0130- * a 3500 3500 3500 3500 3500 3500 3500 3500 3500 0300 -?as Ref Ref 18. For porta C 1not as effective 73 0 i 2 -2 &0 o0 3 A A 9a 1956 Guide 3 _g `5 ao O e ss S Cu so ^ H* < 5 *f t6ao fcq 2 >* H tot to h 5^ a<< *5 e 1R OO OO 0 0 HM .2 3* *t0c* zc H 0A0. O >s 703O3 S 7003 e A Furnaoes Stationary melti ferrous Tilting or rocki non-ferrous Electric Aro for 1 Forge (hand) arage (tail pipe a tion) ranite cutting an Pneumatic hand Surfacing machii rinders Polishers, buffers Portable Swing frame itchen range iboratory hood door) 1 Sa SI VObn 3 3 .u2 00 M a1 & a MH S 8 IB la Enclosure | Enclosure Enclosure Canopy Hood attao Canopy Local hood pipe 1 Local hood Local hood Booth Booth Canopy Booth type Local hood Booth 1*0 1 3 ^32 8 AA AA, a 0 $ 73 A tc .O 0 73 *O0 . 1 0 .2 -- 3 0 0 0 a Sa' 2 V entilatio n | 200 fpm through openings 100-200 fpm at hood opening 3000-6000 cfm 2500 cfm per ton charged 200 fpm at faoe 100 cfm thru 3*in. flexible duct fc 200 cfm thru 4-in. flexible duct 300cfm thru 4f>in. flexible duot f engines 500 cfm 500 cfm for tools up to 2-f in. dia 1000 cfm for 2-} to 2-} in. diamet See Table 3 Bench type, 2-400 cfm per sq ft 1 grille but not less than 150 cfm of plan working area. 100 fpm at face 100-200 fpm indraft through op booth face 100 fpm at hood face 50-100 fpm 200 fpm at hood face 125-200 fpm at booth faoe O s 0Ml 00 O 9 s w .9 3 ?b bas *9 ?2 s"Q 3 9 3** .2 |-3 S5 0 OOOO OO ' ' O? O? OX V3 0 0O 2 0 h0Ed - a 0 020 aM 0a63 f s 02 Ssfe H e- ' 38 P 63 D> .*4 O a 1 o *0 3500 2000 & (S S5 g-i g^.a-g t> > O a.3 S311IS1 2 f?t" eo >JSS --3 -- 63`S g'0 <CN4 1, 21, 23, 2 ventilat rate can >h more c tilation of tuted bu ventilatio 0 2* S S rate for toxic materially re* lete enclosures ting room may volves greatly be 0 CO 5 `s ee .2 a 0 1 H (Q eo "a -D * sl i sill hj a 0 0 00 SS NC4OHO --* CO II 0 OO S 3500 3500 3000 1500 tooo (SB (S" p 8 g IBs Ml 38 "03 73 fe 73 11 ga a .---73V a a gb-0s 8 OO 0 Is bTS 2.2 23. 29. bical i < js ap. 3 b nterlor vertical grease. (Ref. location very d for toxio maates for toxio Sg If - O A 1 73 > 0 a .*53' 1 w J 3 73 2a a 5. a3 11 ^ssl