aep1141 industrial radiation safety

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_Engineering ProcedureDocument Responsibility: Inspection Dept.Issue Date: 31 December, 1996SAEP-1141Next Planned Update: 31 December, 1999Industrial Radiation SafetyPage 8 of 26Previous Issue: New Next Planned Update: 31 December, 1999Revised paragraphs are indicated in the right marginPage 1 of 1Primary contact: R. L. Prince on 874-6605Engineering ProcedureSAEP-114131 December, 1996Industrial Radiation SafetyDocument Responsibility: Inspection Dept.Saudi Aramco DeskTop StandardsTable of Contents1Scope...........................................................22Personnel.....................................................23Definitions....................................................24Personnel Dosimetry....................................45Radiation Monitoring Equipment..................56Permissible Exposure Limits........................67Protection Of Sealed Sources......................78Transportation Of Sealed Sources...............79Restricted Access Radiographic Areas........910Procedures For Handling Sealed Sources...911Emergency Procedures................................1112Leak Testing Of Isotope Projectors..............1313Daily Inspection Of RadiographicEquipment.............................................1514X-Ray Equipment.........................................1515Appendices..................................................16Appendix 1 - Personsal Radiation ExposureRecord.........................................................17Appendix 2 - Daily Isotope Log Sheet...............181Scope1.1This procedure sets forth the requirements for the administration, safety and reporting responsibility of all NDE Inspection personnel. 1.2This procedure establishes the mandatory safety requirements for personnel handling radioactive materials or x-ray generating equipment for or on behalf of Saudi Aramco. It also provides procedures and guidelines for the shipment, storage and use of radioactive materials by authorized personnel. 1.3This procedure interfaces with supplement 9 of General Instruction 150.003 (GI-150.003) and provides specific guidelines in addition to those contained in the applicable supplements of the GI.1.4This procedure can only be changed with written approval of the Manager, Inspection Department and with concurrence by the Saudi Aramco Radiation Protection Committee Chairman.2Personnel2.1The Inspection Department's Radiation Safety Representative shall be responsible for monitoring personnel performing inspection activities using radioactive materials and x-ray equipment. These duties shall include, but are not limited to, shipment, personnel qualification, field operations, storage, transportation, safety audits, records, and supervision of NDT personnel for all user organizations. 2.2Saudi Aramco Radiographic personnel are required to pass the Saudi Aramco Radiation Safety Program (Module 2 of the NDE Training Program) or equivalent.2.3All Saudi Aramco or contractor radiographic crews shall have a copy of this Radiation Safety Manual in their vehicle or work location at all times.2.4No Saudi Aramco or Contractor radiographic technician will be allowed to perform Industrial Radiography for or on behalf of Saudi Aramco without having successfully passed the Radiation Safety examination administered by the Loss Prevention Department and be in possession of a current "Saudi Aramco Permit to Use Material/Equipment Producing Ionizing Radiation". prior to the commencement of any work.2.5For radiation safety when using an X-ray machine or an Iridium 192 (Ir 192) radioactive isotope , a radiographic crew shall consist of two (2) qualified and certified personnel who are thoroughly familiar with the equipment being used and Radiation Safety Practices. When Cobalt-60 is being used, as a minimum, a crew shall consist of four (4) radiographic technicians. 3Definitions3.1Authorized Radiographer - An individual specifically authorized by the Saudi Aramco Inspection Department to perform Industrial Radiography for or on behalf of Saudi Aramco.3.2Curie (Ci) - Unit of measure for the decay rate and resulting radiation intensity of a gamma radiation source. Microcurie (mCi) is 1/1,000,000 of a Ci.3.3High Radiation Area - Any area, with levels of radiation in which a major portion of the body human could receive a dose in excess of 100 millirem in any one hour.3.4NDE - Nondestructive Examination.3.5NDT - Nondestructive Testing (same as NDE).3.6Non-radiation worker - any individual who may or may hnot be associated with the radiographic operation not authorized to be in the radiation area ( 2 mR).3.7Radiation Safety Representative - An individual appointed by the Inspection Department that is responsible for monitoring and implementing the procedures or requirements set-forth in this procedure and GI-150.003.3.8Radiography - The examination of materials by nondestructive methods utilizing radioactive isotopes or x-ray generating equipment. 3.9Radiographer - Any individual who performs industrial radiography using radioactive isotopes or x-ray generating equipment.3.10Radiographic exposure device (isotope projector) - Any shielded sealed source that may be moved or changed from the shielded to unshielded position for purposes of making a radiographic exposure.3.11Radiation Area - Any area with levels of radiation in which the human body could receive a dose in excess of 2 millirem (2 mR) in any one hour or a dose in excess of 100 millirem in any 5 consecutive days.3.12Rem - a measure of the dose of any ionizing radiation to the body tissue in terms of its estimated biological effect relative to the absorption of one roentgen of x-rays or gamma rays. One R of x-rays or gamma rays approximately equals one rem. One mR of x-rays or gamma rays equals approximately one mrem (0.001 rem).3.13Removable contamination - Loose radioactive material.3.14Sealed Source - Any radioactive material encased in a capsule designed to prevent leakage or escape of any radioactive substance. 3.15Sievert - The sievert, as in the rem, is a unit of measure for the radiation dose equivalent to man. This takes into consideration the Radiation Biological Effect (RBE) of the radiation source. For x-ray and gamma ray, 10 sieverts (1 rem) is equal to 1 roentgen. In units more common to industrial radiography:1 Sv = 100rem1 mSv = 100mRem1 mSV = 0.1 mRem (10 mSv = 1 mRem)Radiation monitoring instruments are available with scales in both sieverts and rems. To facilitate easy adjustment betwee rem's and sieverts, it should be remembered that with a sievert instrument set in the Sv range, move the decimal place of the reaing one place to the left to convert to rem (e.g., 20 mSv = 2m/r, 35 mSv = 3.5 mR, etc.).3.16Storage Container - A device in which sealed sources are transported or stored.3.17X-ray Equipment - Any electrical device which generates x-ray radiation for radiography.4Personnel Dosimetry4.1TLD And Pocket Dosimeter4.1.1When transporting, handling, or using x-ray equipment or radioactive materials, radiographers shall wear a personnel dosimeter (Thermal Luminescent Dosimeter (TLD)) and a pocket dosimeter at all times. The pocket dosimeter must be capable of measuring doses from zero to 200 milliroentgens.4.1.2One TLD shall be assigned to each person; to be used for determining the personal dose of each radiographer. Radiographic examinations shall not be performed without a TLD badge. TLD badges must be returned to the Industrial Hygiene Unit upon receipt of a replacement badge at the end of each month. 4.1.3When not in use, TLD badges shall be stored in a radiation free location of the assigned area office unless other locations or circumstances are specifically authorized.4.1.4Pocket dosimeters shall be recharged at the beginning of each day's work and checked periodically during the work shift. At the end of each work day, each radiographer has the responsibility to record the dosimeter reading on a personal Radioactive Exposure Record form provided by his unit. (Attachment - 1 is an example of such a form) 4.1.5An individual in each work location (Ras Tanura, Abqaiq, Dhahran, Riyadh, Jeddah, etc.) will be assigned the responsibility to periodically check individual pocket dosimeter recordings. The individual performing this task shall initial and date the checked Exposure Record Form in the space provided.4.2Malfunctioning Pocket DosimetersAny individual whose pocket dosimeter indicates an exposure of 100 mR or goes off scale (over 200 mR) shall immediately stop production work and make a complete radiation survey of the area, making certain that no additional radiation exposure is received. After the survey is completed, the following steps should be followed:4.2.1If the source is in the shielded position or the x-ray machine is off and your pocket dosimeter continues to indicate you are receiving a dose rate, immediately notify the Inspection Radiation Safety Representative, your immediate supervisor and the area NDE coordinator.4.2.2If the radiation source can not be shielded, insure access into the area is restricted to prevent a radiation hazard, then notify the Radiation Safety Representative of your dosimeter and source condition.4.2.3Exposed TLD badge(s) will be processed as soon as possible. All personnel associated with the radiation incident will not be allowed to return to work until the results of the TLD badge evaluation are received.4.2.4If the total reported results of the TLD badge are not in excess of the allowable limits, individuals involved in the radiation incident may return to active work assignments.4.2.5If the total reported results of the TLD badge are in excess of the allowable limits, individuals involved in the radioactive incident will be given non-radiation work assignments until they can return to active radiographic work.5Radiation Monitoring Equipment5.1A calibrated and operable radiation survey instrument having a minimum range of two milliroentgens per hour to one roentgen per hour shall be available at all times for radiation surveys. Follow the specific procedures for making radiation surveys contained in various sections of this document.5.2Radiation survey instruments shall be calibrated every six (6) months. The Radiation Safety Representative will maintain all records and will be responsible for calibration of survey instruments. Each survey instrument shall carry a tag showing the calibration and expiration dates. Survey instruments shall also be calibrated following any repairs. 5.3If a radiation survey instrument becomes inoperative or is beyond its calibration date, the radiographer shall stop all activities using radiation equipment until a replacement survey instrument, properly calibrated, is obtained.5.4Calibrated survey instruments shall be checked for operation prior to use. Check all on/off switches, check each scale, check batteries and allow the unit to warm up for two or three minutes, prior to the above checks.6Permissible Exposure Limits6.1Exposure to ionizing radiation shall be kept as low as reasonably achievable. Exposure limits given below are the maximum permissible and shall not be exceeded, except under certain emergency conditions. These limits shall apply to persons whose job routinely involves handling and use of radiation producing equipment or radioactive materials, and who have been supplied with appropriate exposure monitoring devices and have been trained in the safe use of radiation. 6.2Occupational Exposure1.Whole body dose equivalent1.25 rem (12.5 mSv)/calendar quarter5 rem (50 mSv)/year2.Crystalline lens of the eye15 rem (150 mSv)/year3.All other tissues or organs50 rem (500 mSv/year(e.g. red bone marrow, breast, lunggonads, skin and extremities).Note:Persons under the age of 18 years shall not be permitted to be occupationally exposed to radiation except for educational and training purposes described in 6.4.6.3Non-Occupational Exposure Limits 6.3.1Radiation producing equipment or radioactive materials shall not be used, stored or transported in any way which could create radiation levels which, if a non-radiation worker were continuously present in the area, would result in a dose in excess of any of the following: 1.Whole body dose equivalent of 0.1 rem (1 mSv)/year (continuous or frequent exposure)2.Whole body dose equivalent of 0.5 rem (5 mSv)/year (infrequent exposure)3.Dose equivalent limits for of 5 rem (50 mSv)/year for lens of eye, skin and extremities6.3.2Exposures to persons for medical treatment shall not be included in any dose limits.6.4Education and Training Exposure Limitsa)Whole body dose equivalent:0.1 rem (1 mSv)/yearb)Lens of eye, skin and extremities:5 rem (50 mSv)/yearEven though the above doses are permissible, any dose is excessive if it could be reduced by developing safer working procedures. If continued excessive doses are caused by careless and/or negligent working procedures, the Radiation Safety Representative will prepare a written report and place a copy in the radiographers personnel file and forward a copy to Loss Prevention.7Protection Of Sealed Sources7.1All radiographic exposure devices shall be provided with a lock designed to prevent unauthorized or accidental removal or exposure of a sealed source, and shall be kept locked at all times except when used under the direct supervision of a radiographer. If the exposure device (isotope projector) lock become inoperative, the isotope projector will immediately be taken out of service for repair by authorized personnel.7.2All radiographic exposure devices shall be stored in an approved location. The location or area shall be locked with signs posted to protect against unauthorized or accidental removal of the exposure devices. (Signs shall be in English and Arabic.)7.3A radiation survey shall be conducted on the outside surfaces of the storage area where radioactive exposure devices are stored. The maximum radiation levels shall not exceed 2 mR per hour at 12 inches from the storage surface.7.4A sign bearing the radiation caution symbol, red (magenta) on yellow background, with the words "Caution - Radiation Area" must be posted on the outside of the container or location where radioactive exposure devices are being stored (Signs shall be in English and Arabic) 7.5Isotope projectors or x-ray producing equipment shall not be kept in any vehicle overnight unless specifically authorized by the Inspection Department.8Transportation Of Sealed Sources8.1Transportation of isotope projectors containing sealed sources shall be by vehicles specifically equipped. Such vehicles shall have a storage box affixed to the vehicle, as approved by the Saudi Aramco Inspection Department for the storage of radioactive isotopes during transport. Only authorized personnel having met the requirements of 2.2 and 2.4 of the SAEP, and in possession of personnel radiation monitoring equipment, are authorized to drive or ride in these vehicles regardless if they contain radioactive material or not.8.2Transportation of isotope projectors form facility to facility for the purpose of transfer, servicing, inspection, etc. shall be by qualified and approved individuals as described above. Unless otherwise deemed necessary by the Inspection Department, only one individual is required. For transportation of isotope projectors to and from work sites for the purpose of performing radiography, refer to paragraph 2.3. Prior to loading Ir 192 isotope projectors into a transporting vehicle, one technician shall be responsible to take the device directly from its storage location to the vehicle. The second technician will be in the vehicle to receive the device and place it into its transportation compartments and lock it. The tailgate of the vehicle shall remain down during the loading and unloading of a isotope projector. Loading and unloading of a Co 60 isotope projector requires specific requirements to be conducted under the supervision of the area NDE coordinator or his designee.8.3During this operation a designated individual shall be responsible to fill in the appropriate blocks as required in the "Daily Isotope Log Sheet" (see Attachment 2).8.4The procedures outlined in paragraphs 8.1 and 8.2 shall be followed everytime the loading or unloading of radioactive equipment takes place.8.5When loading or unloading any radioactive device, it shall never put down temporarily for any reason but taken directly to the transporting vehicle or approved storage location.8.6Whenever a sealed source is transported, it must be secured in an approved storage compartment of the transporting vehicle to prevent shifting or loss. The outside of the device and the compartment where it is stored must be posted with a sign bearing the radiation symbol. 8.7A radiation survey shall be made of the storage compartment; radiation levels shall not exceed two (2) mR per hour on the surface. A calibrated radiation survey meter will be used to monitor all shipments and kept available in the driver/passenger area of the vehicle for use at all times. 8.8All vehicles transporting radioactive materials shall be posted with radiation warning signs stating: "Danger, Radiation" on the front and rear of the vehicle.8.9Emergency procedures to be followed in the event of a road accident are detailed in paragraph 11.8.10Vehicles speed transporting radioactive materials shall not exceed 90km/hr. For 4 x 4 vehicles with sand tires the maximum speed limit is 70km/hr.9Restricted Access Radiographic Areas9.1Radiation Area9.1.1Each radiographic area must be roped off and/or posted with a minimum of four signs placed around the perimeter. The precalculated radiation level reading around the perimeter prior to the first radiographic exposure shall not exceed 2 mR per hour as defined in paragraph 3.11.9.1.2A radiation survey shall be conducted as soon as the source is exposed. The radiographer shall keep the area under constant surveillance to protect against unauthorized or accidental entry.9.1.3The radiographer must complete a radiation survey at each radiographic work location.9.1.4If any unauthorized person enters the radiation area the source will be retracted and no exposures made until the area is cleared. The area NDE coordinator shall be verbally notified of the situation and if deemed necessary, the situation shall be considered as an "Incident" requiring investigation.9.2High Radiation AreaWhere space limitations do not allow the boundary to be established at less than, or equal to, 2 mR per hour, then a "Caution High Radiation Area" sign shall be posted around the area perimeter. The perimeter of a high radiation area shall not exceed 100 mr per hour as defined in paragraph 3.3.9.3Radiation Storage FacilitiesPersonnel access to isotope storage facilities requires compliance with the applicable portions of 2 and 4 of this procedure relating to personnel qualification and radiation monitoring. Visitation to storage facilities by non-radiation workers requires that such personnel be in possession of a calibrated pocket dosimeter and accompanied by a qualified radiographic technician in possession of a film badge, pocket dosimeter and survey meter. Access requires the approval of the NDE Supervisor and the facilities must be surveyed prior to the entrance by non-radiation workers.10Procedures For Handling Sealed Sources10.1General10.1.1All sealed sources used for industrial radiography by Saudi Aramco radiographic personnel shall be housed in approved, remote operated, or shielded projector type devices. Any available natural shielding and/or a collimating device shall be used whenever practical.10.1.2When performing radiographic operations a physical survey shall be made after each exposure to determine that the radiation source has been properly returned to its shielded position. The survey shall be accomplished as the radiographer approaches the projector; readings shall be taken at the rear of the projector and top to assure proper retraction. After the physical survey is completed the survey meter should be placed next to the projector until the next exposure is to be made.10.1.3In no case should the levels of radiation for the surveys in 10.1.2 exceed the following limits: 10.1.3.1When a radioactive source is returned to its shielded position inside the storage camera, the radiation level 15 cm.(6 inches) from any surface shall not exceed the limitations set forth by the manufacturer of the equipment. 10.1.3.2When a radioactive source is in its shielded position inside the isotope projector, the maximum radiation reading 4 inches (10 cm) from any exterior surface, shall not exceed 200 mR per hour, or shall not exceed 10 mR per hour three feet (90 cm) from any exterior surface.10.2Radiographic Equipment10.2.1Each radiographer is responsible for checking his own radiographic equipment (isotope projectors, wind-outs, and extensions) prior to each day's assignment. Inspection procedures are detailed in section 13.10.2.2The following are operational steps that should be used when operating isotope projectors at the beginning of a work assignment:10.2.2.1Assure the survey meter is operating properly prior to unloading the projector from its storage container.10.2.2.2When the isotope projector is in its work location, layout the full length of the wind-out cables keeping them as straight as possible.10.2.2.3Unlock the isotope projector and turn the locking device to the correct position, removing the cap, exposing the source pigtail.10.2.2.4Connect the control cable to the pigtail.10.2.2.5Remove the safety plug from the front of the isotope projector and connect the guide tube(s).10.2.2.6Place the guide tube at the exposure location making sure there are no 90 degrees bends in the tube keeping is as straight as possible.10.2.2.7When the isotope projector setup is complete, turn the locking device to "operate".10.2.2.8Prior to the first radiograph, wind out the source to conduct a radiation survey of the area roped off or posted, to check that if radiation levels at the boundaries are at or below the established limits and adjust position of boundaries as necessary.10.2.2.9At the end of each exposure, rewind the source into the isotope projector and conduct a physical survey as described in 10.1.2.10.2.2.10When work is completed, and a survey conducted; turn the locking device to the locked position, disconnect the guide tube and replace the safety plug.10.2.2.11Turn the locking device to the connect position and disconnect source pigtail, replace the cap, and turn the locking device to its locked position (this locks the isotope projector).Note:Source surveys should always be made before, during and after each exposure and when loading and/or unloading an isotope projector.10.3Source changesThe Saudi Aramco Inspection Department Radiation Safety Representative or other authorized individual appointed by the Radiation Safety Representative, will be responsible for supervising or conducting radioactive source changes for equipment owned or in the custody of Saudi Aramco. Changing sources will be performed in accordance with the manufacturer's or vendor's approved procedures and equipment.11Emergency Procedures11.1Transportation of Sealed Sources11.1.1In the event of a road accident involving a vehicle transporting isotope projector(s), personnel must immediately conduct a radiation survey to determine the level of radiation and determine if the sealed source is exposed. If the source is exposed, the following steps must be taken: 11.1.1.1Restrict and post the area around the vehicle in accordance with paragraph 9.2.11.1.1.2Personnel must remain at the scene of the accident and, as soon as possible, notify his supervisor who will notify the Saudi Aramco Inspection Department Radiation Safety Representative.11.1.2In the event the radiation survey meter is damaged, assume that the source is exposed and use the inverse square law to calculate the distance required for establishing a restricted area. No one shall be allowed in this area until a survey meter is available and if exposed, the source has been secured and is in its shielded position. 11.1.3In the event both individual(s) are injured and unable to physically perform the required surveys and post the area as required, one should direct others as much as possible, and provide them with a copy of this manual. (Also include paragraph 11.1.1.2 as part of this action)11.1.4In the event that authorized individual(s) are unable to respond mentally or physically due to injuries, the vehicle shall be posted in English and Arabic stating "WARNING: KEEP A DISTANCE OF 100 METERS AROUND THIS VEHICLE UNTIL HELP ARRIVES". Such signs shall be affixed to the top and inside cover of the isotope projector box so that under normal circumstances it is not visible.11.1.5As soon as possible, a written report of the incident must be made by all personnel involved and sent to the Inspection Department Radiation Safety Representative.11.2Incidents During RadiographyIn the event of an accident to the device containing a sealed source, immediately take the following steps: A.Try to retract the source into the isotope projector, following the standard operating procedures. B.Make a radiation survey to ascertain that the source has been returned to the shielded position and lock the isotope projector. C.Do not use the isotope projector until the Saudi Aramco Inspection Department Radiation Safety Representative or his authorized representative makes an inspection of the projector to confirm that it is operating properly. Do not use the equipment unless instructed to do so by the Saudi Aramco Inspection Department Radiation Safety Representative. D.In the event the source cannot be returned to the isotope projector for any reason and its return is beyond your control:1.Post the area in accordance with the requirements of this procedure and maintain a constant surveillance to restrict access.2.Contact the Saudi Aramco Inspection Department Radiation Safety Representative for instructions.Note:Do not attempt to recover the source.11.3Lost Or Stolen Isotope Projector(s)For a lost or stolen isotope projector containing a radioactive source, notify the Saudi Aramco Inspection Department Radiation Safety Representative and he will advise the proper Saudi Aramco authorities.11.4Radiation Incident ReportingAll personnel involved in a radiation incident and/or recovery are required to prepare a written report of the incident and send it to the Inspection Department Radiation Safety Representative who will summarize the reports and forward all reports to the Inspection Department Manager and Chairman of the Radiation Protection Committee, who will distribute copies to Committee members.12Leak Testing Of Isotope Projectors12.1Requirements12.1.1Leak testing shall be conducted at intervals not to exceed one year, using a procedure capable of detecting the presence of 0.005 microcuries of removable contamination at the equipment associated with sealed source handling.12.1.2Leak test services will be provided by properly qualified individuals or licensed vendors approved by the Saudi Aramco Radiation Protection Committee. Leak tests will be performed by the Radiation Safety Representative or his designated appointee.12.1.3Leak test results shall be maintained by the Inspection Department, Nondestructive Testing Unit, with copies sent to the Industrial Hygiene Unit in Dhahran.12.1.4New sources shall be accompanied by a certificate that leak tests were performed prior to shipment. Sources can not be put into use until they are leak tested.12.2ProcedureLeak testing of equipment shall be conducted as follows:12.2.1Fill out a form indicating equipment identification date, location, and name, etc.12.2.2If not already prepared, dissolve dry detergent in a small amount of water.12.2.3Dampen a cotton swab in the liquid and proceed according to the instructions supplied with the test kit or as instructed by the Saudi Aramco Radiation Safety Representative.12.3Projector12.3.1Remove the safety plug from the front of the isotope projector, and dampen a cotton swab with liquid.12.3.2Insert the cotton swab into the front of the isotope projector making a swabbing motion.12.3.3Remove the swab, place it in a plastic bag, seal the bag and replace the safety plug.12.3.4Remove the rear locking cap, swab the source connection clip, replace the cap and lock the isotope projector.12.3.5Place swab in a plastic bag and seal it.12.4Wind-Out/Guide Tubes12.4.1Wipe the guide cable (about 6 inches from the end) and place the swab in a plastic bag.12.4.2Wipe the front-end extension tube (internal) with a swab and place it in a plastic bag.12.5Specific Wipe Test Instructions12.5.1Place all bagged samples from one isotope projector into a single package with a copy of the form filled out in accordance with 12.2.1 above.12.5.2Prior to sending wipe samples for analysis, survey all sealed bags. If any samples provide a reading above background, samples must not be mailed.12.5.3Samples with reading above background must be hand delivered in a sealed container for analysis and the equipment taken out of service.13Daily Inspection Of Radiographic Equipment13.1All exposure devices must be inspected at the beginning of each day that it is used. The radiographers are responsible for checking their own equipment. These checks need not be documented by the technician, but these checks should be made and documented periodically by each area Safety Representative.13.2Daily inspections shall include but are not limited to the following equipment:A.Survey for excessive radiation levels. B.Inspect control and indicator assembly for loose hardware and damage.C.Inspect control cables for cuts, breaks, and broken fittings.D.For models with detachable controls: i.Check connector (ball and socket) for proper operation. ii.Inspect lock for ease of operation. If not operating freely, do not use and inform your Supervisor who shall issue a written report.iii.Check operation of control cable locking ring.E.Inspect carriage, wheels, lifting lugs and handles of units, so equipped. F.Check all labels for legibility. G.Inspect source tube for cuts and kinks. H.Make sure source tube end cap is secured. I.Inspect source tube connector fitting for thread damage. J.Check lock, hasp, and shipping plug. The inside of the source tube and all connection parts should be free of any foreign material that may impair the operation of the device before the components are assembled for use.14X-Ray EquipmentAll safety precautions provided in this manual shall apply to operations with x-ray generators where applicable. The following items are mandatory when using x-ray generators. a)Radiation survey instruments shall be used in the same manner as they are used with radioactive materials. They shall be used to determine that the x-ray unit is turned-off, except in cases where the main power source is disconnected. b)No x-ray unit shall be left unattended. The control shall be locked after each exposure.15AppendicesThe appendices attached to this Operating and Emergency Procedures Manual become an integral part of the overall radiation safety program for Saudi Aramco. They are referenced as part of the written portion of the Manual. These appendices include report forms and provide supplementary material regarding the control of radiation as practiced by radiographic personnel.Revision Summary31 December, 1996New SAEP replacing 00-SAIP-08.Appendix 1 - Personal Radiation Exposure RecordPersonal Radiation Exposure RecordName _______________________________________ID: _____________Month ______________DateOutInRec'dDateOutInRec'd 1_______________ 17_______________ 2_______________ 18_______________ 3_______________ 19_______________ 4_______________ 20_______________ 5_______________ 21_______________ 6_______________ 22_______________ 7_______________ 23_______________ 8_______________ 24_______________ 9_______________ 25_______________ 10_______________ 26_______________ 11_______________ 27_______________ 12_______________ 28_______________ 13_______________ 29_______________ 14_______________ 30_______________ 15_______________ 31_______________ 16_______________T o T a l:_____Remarks:___________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________Note:If reading for one day exceeds 100 mR or Total for 4-WK. Period exceeds 400 mR report it to your Supervisor at once.Reviewed by: ___________________________________ ID: ____________ Date: _______________Appendix 2 - Daily Isotope Log SheetDesti-Radio-SourceTimeTimeSourceDateIsotope #nationTruck #graphersIn BoxIssuerDateOutInReceiverStoredDate______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________Attachment - 2____________________Supervisor's Signature