REVISION 6 NAVAL SHIPS’ TECHNICAL MANUAL CHAPTER 074
S9086-CH-STM-030REVISION 6NAVAL SHIPS’ TECHNICAL MANUALCHAPTER 074VOLUME 3 - GAS FREE ENGINEERINGSUPERSEDURE NOTICE: THIS MANUAL SUPERSEDES CHAPTER 074, VOLUME3, DATED 01 SEPTEMBER 2009 AND ALL CHANGES THERETO.DISTRIBUTION STATEMENT A: APPROVAL FOR PUBLIC RELEASE: DISTRIBUTION IS UNLIMITED.PUBLISHED BY DIRECTION OF COMMANDER, NAVAL SEA SYSTEMS COMMAND.*0910LP1115226*1 AUG 2011TITLE-1 / (TITLE-2 TLE@@!FIpgtype@@
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S9086-CH-STM-030RECORD OF REVISIONSREVISION NO.456TITLE AND/OR BRIEF DESCRIPTION/PREPARING ACTIVITYPARAGRAPH(S) 074-18.8, 074-18.10, 074-25.2, 074-25.3, 074-25.5, 07425.6 AND N.VARIOUS UPDATES. PARAGRAPH(S) 074-18-12.1, 074-18-12.2, 074-1812.3, 074-25.3, 074-25.6 AND N.THE FOLLOWING WAS CHANGED:PARAGRAPH(S) , 074-18.3, 074-18.6, 074-18.7, 074-18.8, 074-18.9,074-18.10, 074-18.18.2, 074-19.3, 074-19.4, 074-19.6, 074-19.9, 074-19.10,074-19.11, 074-19.13, 074-19.14, 074-20.4, 074-21.7.2, 074-25.2, 074-25.3,074-25.4, 074-25.5, 074-25.6, A, G, H, 074-K.7.1, 074-K.8.1, 074-L.2.2,074-L.3, 074-L.4, 074-L.5 AND MTABLE(S) 074-19-1. AND 074-L-1.FIGURE(S) 074-I-1., 074-I-2., 074-I-3., 074-L-1., 074-L-2., 074-L-3.,074-M-1., 074-M-2. AND 074-M-3.TMDERS INCORPORATED: R03363-04-0824, R21247-08-LB01, ANDS41718-04-PN04DATE15 JULY 200301 SEPT 20091 AUGUST 2011FOR OPTIMAL VIEWING OF THIS TECHNICAL MANUAL THE PAGE LAYOUT IN ADOBE ACROBATREADER SHOULD BE SINGLE PAGE. CONTINUOUS PAGE DISPLAY CAN CAUSE PROBLEMS WITHLINK REFERENCES AND THE BOOKMARKS.RECORD OF REVISIONS-1 / (RECORD OF REVISIONS-2 Blank)
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S9086-CH-STM-030TABLE OF CONTENTSChapter/Paragraph074PageVOLUME 3GAS FREE ENGINEERING . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18-1SECTION 18GAS FREE ENGINEERING PROGRAM REQUIREMENTS . . . . . . . . . . .18-1074-18.1INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18-1074-18.2BACKGROUND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18-1074-18.3APPLICABILITY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18-1074-18.4SCOPE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18-1074-18.5BASIC PROGRAM REQUIREMENTS . . . . . . . . . . . . . . . . . . . . . . . . .18-2074-18.6STAFFING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18-2074-18.7BASIC AND LEGAL PROVISIONS FOR GAS FREE ENGINEERING TRAINING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18-2074-18.8GAS FREE ENGINEERING PERSONNEL (GFEP) . . . . . . . . . . . . . . . . . .18-3074-18.9GAS FREE ENGINEERING TRAINING . . . . . . . . . . . . . . . . . . . . . . . .18-4074-18.10PROGRAM EVALUATION AND RECERTIFICATION . . . . . . . . . . . . . . . .18-4074-18.11CERTIFICATION/RECERTIFICATION RECORDS. . . . . . . . . . . . . . . . . .18-5074-18.12 SHIPBOARD AFLOAT GAS FREE ENGINEER (GFE) AUTHORITY LIMITS . .074-18.12.1 SHIPBOARD AFLOAT GFE. . . . . . . . . . . . . . . . . . . . . . . . . . .074-18.12.2 MARITIME SHORE COMMAND GFE. . . . . . . . . . . . . . . . . . . . .074-18.12.3 NON-MARITIME SHORE COMMAND GFE. . . . . . . . . . . . . . . . .18-518-518-618-6074-18.13CONTRACTOR OPERATIONS INSIDE U.S. TERRITORIAL WATERS. . . . . .18-6074-18.14CONTRACTOR OPERATIONS OUTSIDE U.S. TERRITORIAL WATERS . . . . .18-7074-18.15NAVY GAS FREE CERTIFICATION AND TEST LOG . . . . . . . . . . . . . . . .18-7074-18.16RECORDS RETENTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18-7074-18.17 DUTIES AND RESPONSIBILITIES OF GFE PERSONNEL . . . .074-18.17.1 GFE DUTIES. . . . . . . . . . . . . . . . . . . . . . . . . . .074-18.17.2 GFEA DUTIES (NOT APPLICABLE TO SUBMARINES).074-18.17.3 GFEPO DUTIES (NOT APPLICABLE TO SUBMARINES).074-18.17.4 POST-FIRE ATMOSPHERIC TESTS. . . . . . . . . . . . . . . . . . . . . . . . . . . .18-718-718-818-818-8i
S9086-CH-STM-030TABLE OF CONTENTS - ContinuedChapter/ParagraphPage074-18.18 RESPONSIBILITIES FOR GAS FREE ENGINEERING . . . . . . . . . . . . . . .074-18.18.1 NAVAL SEA SYSTEMS COMMAND (NAVSEA). . . . . . . . . . . . . . .074-18.18.2 CHIEF OF NAVAL EDUCATION AND TRAINING (CNET). . . . . . . . .074-18.18.3 BUREAU OF MEDICINE AND SURGERY (BUMED). . . . . . . . . . . .074-18.18.4 COMMANDING OFFICER (CO). . . . . . . . . . . . . . . . . . . . . . . .074-18.18.5 DEPARTMENT HEADS, DIVISION OFFICERS AND PETTY OFFICERS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .074-18.18.6 OFFICERS AND PETTY OFFICERS IN CHARGE. . . . . . . . . . . . . .074-18.18.7 OPERATING PERSONNEL. . . . . . . . . . . . . . . . . . . . . . . . . . . .18-918-918-10074-18.1918-10SECTION 19REPORTING OMISSIONS OR ERRORS IN MANUALS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19-1074-19.1INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19-1074-19.2NEED FOR GAS FREEING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19-1074-19.3SOURCES OF CONFINED SPACE HAZARDS . . . . . . . . . . . . . . . . . . . .19-1074-19.4ENTRY AND WORK RESTRICTIONS FOR CONFINED SPACES . . . . . . . . .19-2074-19.5WORKING ALONE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19-3074-19.6EXPOSURE LEVELS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19-3074-19.7PERSONNEL PROTECTIVE EQUIPMENT (PPE) . . . . . . . . . . . . . . . . . . .19-4074-19.8RESPIRATORY PROTECTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . .19-4074-19.9BREATHABLE AIR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19-4074-19.10ACCESS TO HAZARDOUS SPACES . . . . . . . . . . . . . . . . . . . . . . . . . .19-4074-19.11TESTING PROCEDURES AND RESULTING RESTRICTIONS . . . . . . . . . . .19-5074-19.12PERIODIC AND CONTINUOUS TESTING. . . . . . . . . . . . . . . . . . . . . .19-7074-19.13CONDITIONS FOR CLASSIFYING CONFINED SPACES AS IDLH . . . . . . . .19-7074-19.14IDLH SPACE ENTRY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19-8074-19.15GENERAL REQUIREMENTS FOR ENTRY AND WORK . . . . . . . . . . . . . .19-12SECTION 20NAVY GAS FREE CERTIFICATES . . . . . . . . . . . . . . . . . . . . . . . . . .20-1074-20.1NAVY GAS FREE CERTIFICATES . . . . . . . . . . . . . . . . . . . . . . . . . . .20-1iiGAS FREE ENGINEERING PROCEDURES18-918-918-918-918-9
S9086-CH-STM-030TABLE OF CONTENTS - ContinuedChapter/ParagraphPage074-20.2SPACES INITIALLY CERTIFIED BY GFEPO . . . . . . . . . . . . . . . . . . . . .20-1074-20.3SPACES INITIALLY CERTIFIED BY GFE/GFEA . . . . . . . . . . . . . . . . . . .20-1074-20.4SPACES DELEGATED BY GFE/GFEA . . . . . . . . . . . . . . . . . . . . . . . . .20-1074-20.5CERTIFICATE ISSUANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20-2074-20.6CERTIFICATION AND TEST LOG USAGE AND CONTENTS . . . . . . . . . . .20-2074-20.7DEFINITIONS FOR EXISTING CONDITIONS . . . . . . . . . . . . . . . . . . . .20-7074-20.8DISTRIBUTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20-8074-20.9RETESTING AND RECERTIFYING SPACES . . . . . . . . . . . . . . . . . . . . .20-9SIGNAGE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20-9SECTION 21VENTILATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21-1074-21.1INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21-1074-21.2BASIC VENTILATION OBJECTIVES. . . . . . . . . . . . . . . . . . . . . . . . .21-1074-21.3VENTILATION BEFORE ENTRY OR WORK . . . . . . . . . . . . . . . . . . . . .21-1074-20.10074-21.4 VENTILATION TYPES . . . . . . . . . . . . . . . . .074-21.4.1 GENERAL VENTILATION. . . . . . . . . . .074-21.4.2 CALCULATING GENERAL VENTILATION.074-21.4.3 LOCAL EXHAUST VENTILATION. . . . . .074-21.4.4 DILUTION VENTILATION. . . . . . . . . . .074-21.5.21-221-221-221-221-3VENTILATING FLAMMABLE ATMOSPHERES . . . . . . . . . . . . . . . . . . .21-3074-21.6 VENTILATION SYSTEM COMPONENT PLACEMENT . . . .074-21.6.1 INLET LOCATION. . . . . . . . . . . . . . . . . . . . .074-21.6.2 EXHAUST OUTLET LOCATIONS. . . . . . . . . . . .074-21.6.3 DUCT LOCATIONS FOR CONTAMINANTS LIGHTERTHAN AIR. . . . . . . . . . . . . . . . . . . . . . . . .074-21.6.4 BLOWING VERSUS DRAWING AIR. . . . . . . . . . .074-21.6.5 FAN LOCATION. . . . . . . . . . . . . . . . . . . . . . .074-21.6.6 DUCTING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .OR HEAVIER. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .074-21.7 VENTILATION REQUIREMENTS FOR SPECIFIC OPERATIONS . . .074-21.7.1 VENTILATION REQUIREMENTS FOR WELDING, CUTTING,BURNING AND BRAZING. . . . . . . . . . . . . . . . . . . .074-21.7.2 LOCAL EXHAUST VENTILATION. . . . . . . . . . . . . . . . .074-21.7.3 TOXIC METALS VENTILATION. . . . . . . . . . . . . . . . . . . . .21-321-321-3.21-321-421-421-6. . . . . .21-6. . . . . . . . . . . . . . . .21-621-621-6iii
S9086-CH-STM-030TABLE OF CONTENTS - ContinuedChapter/ParagraphPage074-21.7.4 DILUTION VENTILATION. . . . . . . . . . . . . . .074-21.7.4.1 Dilution Ventilation Volume Formula. . .074-21.7.4.2 Dilution Ventilation Velocity Formula. . .074-21.7.5 VENTILATION REQUIREMENTS FOR PAINTING,USE OF SOLVENTS. . . . . . . . . . . . . . . . .074-21.7.6 DILUTION FOR SPRAY PAINTING. . . . . . . . . . . .21-721-721-7. . .21-821-8074-21.8DILUTION TO LEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21-8074-21.9DILUTION VENTILATION FLOW RATES. . . . . . . . . . . . . . . . . . . . . .21-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22-1074-22.1INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22-1074-22.2HOT WORK DEFINED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22-1074-22.3CLEANING AND VENTILATING FOR HOT WORK . . . . . . . . . . . . . . . . .22-1074-22.4FIRE WATCH. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22-2074-22.5FIRE EXTINGUISHING EQUIPMENT . . . . . . . . . . . . . . . . . . . . . . . . .22-2SECTION 22HOT WORK. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .COATINGS AND. . . . . . . . . . . . . . . . . . . . .074-22.6 HOT WORK LOCATIONS . . . . . . . . . . . . . . . . . . . . . . . . .074-22.6.1 BOUNDARY SPACES. . . . . . . . . . . . . . . . . . . . . . . .074-22.6.2 PIPES, TUBES, COILS. . . . . . . . . . . . . . . . . . . . . . .074-22.6.3 HOT WORK ON CLOSED CONTAINERS OR STRUCTURES.074-22.6.4 HOT WORK NEAR PRESERVATIVE COATINGS. . . . . . . .074-22.6.5 HOT WORK NEAR DAMAGED SURFACES. . . . . . . . . .074-22.6.6 HOT WORK NEAR PRESSURIZED SYSTEMS. . . . . . . . .074-22.6.7 HOT WORK NEAR INSULATION. . . . . . . . . . . . . . . .074-22.6.8 HOT WORK NEAR AMMUNITION AND EXPLOSIVES. . RDOUS BY-PRODUCTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22-5074-22.8 GAS WELDING AND CUTTING . . . . . . . . . . . . .074-22.8.1 COMPRESSED GAS CYLINDERS. . . . . . . .074-22.8.2 GAS WELDING AND CUTTING EQUIPMENT.074-22.8.3 GAS SUPPLIES. . . . . . . . . . . . . . . . . . .22-522-522-522-5074-22.9 ELECTRIC ARC PROCESSES . . . . . . . . . . .074-22.9.1 ELECTRIC ARC UNITS OR MACHINES.074-22.9.2 ELECTRIC ARC EQUIPMENT. . . . . . .074-22.9.3 ELECTRODE HOLDERS. . . . . . . . . .074-22.9.4 INERT GAS WELDING PROCESSES. . .22-522-622-622-622-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23-1SECTION 23iv. . . . . . . . . . . . . . . . . . . . . . . . . . .SPACE CLEANING. . . . .
S9086-CH-STM-030TABLE OF CONTENTS - ContinuedChapter/ParagraphPage074-23.1INTRODUCTION AND SCOPE . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23-1074-23.2COLD WORK DEFINED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23-1074-23.3GAS FREE ENGINEERING REQUIREMENTS . . . . . . . . . . . . . . . . . . . .23-1074-23.4GENERAL SAFETY PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . .23-1074-23.5CLEANING METHODS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23-2074-23.6STEAM CLEANING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23-2SECTION 24INERTING, PRESSING-UP AND STEAM BLANKETING. . . . . . . . . . . .24-1074-24.1INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24-1074-24.2RESTRICTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24-1074-24.3 GAS INERTING . . . . . . . . . . . . . . . . . . . . .074-24.3.1 INERTING PRECAUTIONS. . . . . . . . . .074-24.3.2 EXHAUST VENTILATION. . . . . . . . . . .074-24.3.3 GAS INERTING GENERAL PROCEDURES.24-124-124-224-2074-24.4PRESSING-UP RESTRICTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24-3074-24.5STEAM BLANKETING24-4074-24.6STEAM BLANKETING REQUIREMENTS. . . . . . . . . . . . . . . . . . . . . .24-4SECTION 25EMERGENCY RESCUE PROCEDURES. . . . . . . . . . . . . . . . . . . . . .25-1074-25.1INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25-1074-25.2RESPONSIBILITIES OF RESCUE PERSONNEL . . . . . . . . . . . . . . . . . . .25-1074-25.3EQUIPMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25-2074-25.4ENTRY PROCEDURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25-3074-25.5RESCUE PROCEDURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25-4074-25.6ATTENDING TO VICTIMS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25-5074-25.7RESCUE PERSONNEL TRAINING . . . . . . . . . . . . . . . . . . . . . . . . . . .25-6SECTION 26POST-FIRE ATMOSPHERIC TESTING . . . . . . . . . . . . . . . . . . . . . . .26-1074-26.1POST-FIRE ATMOSPHERIC TESTING ON SURFACE SHIPS . . . . . . . . . . . .26-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .v
S9086-CH-STM-030TABLE OF CONTENTS - ContinuedChapter/Paragraph074-26.2PagePOST-FIRE ATMOSPHERIC TESTING ON SUBMARINES . . . . . . . . . . . . .074-26.3 LOCATIONS FOR ATMOSPHERIC TESTING074-26.3.1 GENERAL. . . . . . . . . . . . . . . .074-26.3.2 SMALL FIRES. . . . . . . . . . . . . .074-26.3.3 GROWING FIRES. . . . . . . . . . . .074-26.3.4 LARGE FIRES. . . . . . . . . . . . . .26-226-326-326-326-3. . . . . . . . . . . . . . . . . . . . . .27-1074-27.1APPROVED INSTRUMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27-1074-27.2INSTRUMENT LIMITATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27-1074-27.3CALIBRATION AND MAINTENANCE. . . . . . . . . . . . . . . . . . . . . . . .27-2074-27.4FOUR GAS ANALYZER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27-2074-27.5EXCLUSIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27-3074-27.6SAFETY PRECAUTIONS27-3SECTION 27NAVY GAS FREE INSTRUMENTATION.27-427-427-427-427-527-5. . . . . . . . . . .27-527-5CALIBRATION KIT COMPONENTS . . . . . . . . . . . . . . . . . . . . . . . . . .27-5074-27.9 USE OF THE FOUR GAS ANALYZER . . . . .074-27.9.1 PRE-CHECK. . . . . . . . . . . . . . . .074-27.9.2 TURN ON/OFF. . . . . . . .074-27.9.3 OPERATION. . . . . . . . .074-27.9.4 METHODS OF SAMPLING.vi. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .074-27.7 FOUR GAS ANALYZER KIT COMPONENTS . . . . . . . . . . . . . .074-27.7.1 ANALYZER UNIT (INSTRUMENT). . . . . . . . . . . . . . . .074-27.7.2 REMOTE SAMPLING EQUIPMENT. . . . . . . . .074-27.7.3 BATTERY CHARGER. . . . . . . . . . . . . . . . . .074-27.7.4 SPECIAL TOOLS. . . . . . . . . . . . . . . . . . . . .074-27.7.5 PROTECTIVE SHEATH AND MOUNTS. . . . . . .074-27.7.6 MANUFACTURER’S COMMERCIAL TECHNICALMANUAL (REFERENCE MANUAL). . . . . . . .074-27.7.7 FOUR GAS ANALYZER KIT CARRYING CASE. CY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27-6074-27.11RANGES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27-6074-27.12ALARM CONDITIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27-6074-27.13CALIBRATION27-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
S9086-CH-STM-030TABLE OF CONTENTS - . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27-7AGAS FREE ENGINEERING INFORMATION SOURCES (SHIPBOARD) . . .A-1BINTRODUCTION TO SHIPBOARD GAS FREE ENGINEERING . . . . . . . .B-1CSAMPLE GAS FREE ENGINEERING NOTEBOOK. . . . . . . . . . . . . . .C-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-1DNAVY GAS FREE CERTIFICATION AND TEST LOG . . . . . . . . . . . . . .D-1E(NEW) SHIPBOARD HAZARDOUS ATMOSPHERES ANDCOMPARTMENTS IDENTIFICATION TABLES . . . . . . . . . . . . . . . .E-1FHOW TO READ MATERIAL SAFETY DATA SHEETS . . . . . . . . . . . . . .F-1GPERMISSIBLE EXPOSURE LIMITS (PEL) . . . . . . . . . . . . . . . . . . . . .G-1HGAS FREE ENGINEERING EQUIPMENT REFERENCE. . . . . . . . . . . .H-1IAPPROVED GFE SIGNAGE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .I-1JMETRIC CONVERSION CHART . . . . . . . . . . . . . . . . . . . . . . . . . . .J-1KPORTABLE GAS FREE INSTRUMENT CERTIFICATION074-C.1PURPOSE OF NOTEBOOK074-C.2NOTEBOOK CONTENTS. . . . . . . . . . .K-1074-K.1INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .K-1074-K.2CLASS I LOCATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .K-1074-K.3CLASS I, DIVISION 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .K-1074-K.4GROUPS A - D. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .K-1074-K.5NRTLs CERTIFIED BY OSHA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .K-2074-K.6GAS FREE INSTRUMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .K-3074-K.7AUTHORIZED GAS FREE INSTRUMENTS . . . . . . . . . . . . . . . . . . . . . .K-3074-K.8PARTS MANUFACTURERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .K-3LCHEMICAL DETECTION TUBES . . . . . . . . . . . . . . . . . . . . . . . . . .L-1PURPOSEL-1074-L.1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .vii
S9086-CH-STM-030TABLE OF CONTENTS - ContinuedChapter/ParagraphPage074-L.2 SYSTEM COMPONENTS . . . . . . . . . . .074-L.2.1 DETECTOR TUBE. . . . . . . . . . .074-L.2.2 PUMP. . . . . . . . . . . . . . . . . . .074-L.2.3 CALIBRATED SCALES AND COLOR074-L.2.4 LONG-TERM DETECTOR TUBE. . .L-1L-1L-2L-2L-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .L-3074-L.3THE TESTING PROCESS074-L.4CARE AND MAINTENANCE OF DETECTOR TUBE SYSTEMS. . . . . . . . .L-4074-L.5PROPER DISPOSAL OF DETECTOR TUBES . . . . . . . . . . . . . . . . . . . . .L-4MHOISTING EQUIPMENT - RESCUE DAVIT SYSTEM . . . . . . . . . . . . . .M-1074-M.1OVERVIEW. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .M-1074-M.2 DESCRIPTION. . . . . . . .074-M.2.1 WINCH ASSEMBLY.074-M.2.2 PO
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