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HS-507 Procedures lead investigations a t <br /> 9 <br /> Underground Spills of Cas and ether Petroleum distillate <br /> All instrinnents shall be calibrated both )mnzrd'ately prior tc> e.c)nul)en(Anl; the nay's tic-ld woik and <br /> Lifter work cease, for the day C:alib'ation anti Inon)to')ng records shall hie kept ui the prolcet file <br /> and provided to the operating unit IISM Recold., shall include <br /> Worker's name, <br /> 0 Date, <br /> 0 Tilne, <br /> 0 Locatinn, <br /> Temperatu)e and humiday, and <br /> Calibration pas identity gild c0 nCenljatt()n <br /> 0 Exposure data (Inne, location, and c.unccntrattvl') <br /> 507 9 3 Explosion Hazard Action Levels <br /> I hey explo"wity action level% below arc set to prevent the• a reation of llain)t'able of c�p1c)s)vr <br /> almosphrrrti Meawre)ntnis %homer bx• taken at all 10Cdt10i1s where pe,rzonnel arc plce,ent aI <br /> Power/ltand tools are in use API procedures shall be followed for measure•nwnts in t,II)i.s c,I <br /> 1�11>ing <br /> €.Y IE+QS' TfY s ► 11U EVE T <br /> 4x. a. + :a*k4 �.afi��R^S'> �I�♦•�{�'*� S�` �~ J r .a �-,A,,. r.. <br /> . , �nslryemene - Action E,rvel (Evacuate)'. <br /> Combustible Gas Indicator +�01k <br /> The Combustible Gati Indicator (CGI) .21.1rnl must be set to %ound at tilt IM1011 leVL l 1=C)r till~ <br /> wotk it is highly )ecrlrrunet)ded that llcxtinc or nzctl)ane to a petltane standard be towd foi <br /> whbrat)on <br /> When inemuicint-ws with a CGI indicate the presence of combustible gas levels equal to a, <br /> ext cedlnf; the explOsivity action level in the walk area, the following action must be Liken <br /> I I-xtrngulsh all possible ignition %ources in the work area and shut down all powered <br /> equipment <br /> 2 Move perso)inc I at least 100 feet away from work area <br /> 3 ("Onta(.t t11c )le•,11111 and Safely Manager. <br /> 4 At the; nisirnction of the HSM and lite' waiting 15 minutes fol oigarm vapors to d)stirpatc, <br /> Il)e SSC) or PM may uce the CY;I to, cautiously ,aid with prudence, approach the wniksite ioI <br /> detel"MIt'c• the extent anti concentration Of organ)(, einimons The S,SO or PM shall not trite, <br /> ,toy area wlic-)e C(,I readnigs exceed tite explosivity act)ot' level, nn) shall the SSC) (xi 1'M <br /> mike any cipploach if there )s possibility of rim of explosiol) <br /> L�P OPERA TING Pri Clt<Fi URE w- Dec�,npnt+n M+rrp:oll i+llurrwk >E7l4+u+i4 MAIL 4G+ t) <br />