Atch d_S6470-AA-SAF-010.PDF

S6470–AA-SAF-010

REVISION 01

GAS FREE ENGINEERING MANUAL

DISTRIBUTION STATEMENT C: DISTRIBUTION AUTHORIZED TO GOVERNMENT AGENCIES AND THEIR CONTRACTORS (SEPTEMBER1999). OTHER REQUESTS MUST BE REFERRED TO NAVSEASYSCOM (SEA

OOT).

WARNING: THIS DOCUMENT CONTAINS TECHNICAL DATA WHOSE EXPORT IS RESTRICTED BY THE

ARMS EXPORT CONTROL ACT (TITLE 22, U.S.C., SEC. 2751, ET SEQ.) OR EXECUTIVE ORDER 12470.

VIOLATION OF THESE EXPORT LAWS ARE SUBJECT TO SEVERE CRIMINAL PENALTIES.

SUPERSEDURE NOTICE THIS PUBLICATION SUPERSEDES TECHNICAL MANUAL

S6470–AA-SAF-010 DATED 15 OCTOBER 1982.

HANDLING AND DESTRUCTION NOTICE: DESTROY BY ANY METHOD THAT WILL PREVENT DISCLOSURE

OF CONTENTS OR RECONSTRUCTION OF THIS DOCUMENT.

PUBLISHED BY DIRECTION OF COMMANDER, NAVAL SEA SYSTEMS COMMAND

01 September 1999

TITLE-2

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FOREWORD

Safety hazards posed by the presence of toxic, explosive or oxygen deficient gases and vapors in confined spaces and other locations are frequently insidious in nature and of extremely serious magnitude. The potential for these hazards exists onboard naval vessels and at naval maritime activities. The mission of the NAVSEA Gas Free Engineering Program is to eliminate or significantly reduce such hazards. This will be accomplished through the services of specially qualified personnel and will involve organizational, administrative, educational and tech-nical procedures.

This manual has been prepared for the purpose of providing essential guidance and requirements to naval maritime activities where the potential exists for the subject hazards, and continuous maintenance of this vital safety program. The manual addresses requirements, qualifications and duties for gas free engineering personnel;

describes various hazards and precautions including sources for additional information in specific areas; and pro-vides a general description of procedures employed in various gas freeing operations. Further refinements to this manual may be required to enhance effectiveness in serving the purpose for which it was prepared. Constructive comments and recommendations are strongly solicited.Chapter 1, paragraph 1-9provides additional information concerning submission of comments.

FOREWORD-1 / (FOREWORD-2 Blank)

FOREWORD-2

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TABLE OF CONTENTS

Chapter/Paragraph Page

1 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

1-1 PURPOSE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

1-2 SCOPE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

1-3 APPLICABILITY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

1-4 MANDATORY AND ADVISORY PROVISIONS . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

1-5 SUPPLEMENTARY INSTRUCTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

1-6 CONFLICTING REGULATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

1-7 ALTERNATIVE CRITERIA STANDARDS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

1-8 RESPONSIBILITIES FOR GAS FREE ENGINEERING. . . . . . . . . . . . . . . . . . . . . 1-2 1-8.1 COMMANDING OFFICER. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 1-8.2 OFFICERS, DIRECTORS AND MANAGERS.. . . . . . . . . . . . . . . . . . . . . 1-2 1-8.3 SUPERVISORY PERSONNEL.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3 1-8.4 OPERATING PERSONNEL.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

1-8.5 SAFETY, HEALTH, AND FIRE PROTECTION MANAGERS.. . . . . . . . . . . . 1-3

1-8.6 GAS FREE ENGINEER, GFE SUPPORT PERSONNEL... . . . . . . . . . . . . . . 1-3

1-9 REPORTING OMISSIONS OR ERRORS IN THIS MANUAL. . . . . . . . . . . . . . . . . . 1-3

1-10 DATE OF PUBLICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

1-11 DEFINITIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

2 GAS FREE ENGINEERING PROGRAM REQUIREMENTS . . . . . . . . . . . . . . . . . 2-1

2-1 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

2-2 BASIC PROGRAM REQUIREMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

2-3 STAFFING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

2-4 GAS FREE ENGINEERING SERVICES PERSONNEL. . . . . . . . . . . . . . . . . . . . . . 2-2 2-4.1 GAS FREE ENGINEER. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2 2-4.2 GAS FREE TECHNICIAN.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

2-5 GAS FREE ENGINEERING TRAINING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

2-6 GAS FREE ENGINEERING PERSONNEL CERTIFICATION AND RECERTIFICATION . . 2-3

2-6.1 NAVY GAS FREE ENGINEER CERTIFICATION BOARD. . . . . . . . . . . . . . 2-3

2-6.2 GAS FREE ENGINEER CERTIFICATION PROCESS.. . . . . . . . . . . . . . . . 2-3 i

TABLE OF CONTENTS - Continued

2-6.3 RECERTIFICATION OF GAS FREE ENGINEERS.. . . . . . . . . . . . . . . . . . 2-3 2-6.4 RECERTIFICATION OF GAS FREE ENGINEERS.. . . . . . . . . . . . . . . . . . 2-4 2-6.5 GFT DESIGNATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

2-6.6 GAS FREE ENGINEERING PROGRAM REVIEW, EVALUATION AND AUDIT. . 2-4

2-6.7 CERTIFICATION RECORDS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

2-7 GFE PERSONNEL RELATIONSHIPS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4 2-7.1 INTERCHANGEABILITY OF GFE PERSONNEL. . . . . . . . . . . . . . . . . . . 2-4

2-7.2 ORGANIZATIONAL RELATIONSHIP OF GAS FREE ENGINEERING

PERSONNEL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5

2-8 CONTRACTOR OPERATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5

2-9 ADMINISTRATIVE AND RECORD KEEPING REQUIREMENTS . . . . . . . . . . . . . . . 2-5 2-9.1 GAS FREE ENGINEERING TEST LOG.. . . . . . . . . . . . . . . . . . . . . . . . 2-5 2-9.2 GAS FREE ENGINEERING CERTIFICATE.. . . . . . . . . . . . . . . . . . . . . . 2-6 2-9.3 RECORDS RETENTION.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

2-10 DUTIES AND RESPONSIBILITIES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6 2-10.1 GAS FREE ENGINEER. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6 2-10.2 GAS FREE TECHNICIANS.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7 2-10.3 GFE″IN TRAINING″. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7 2-10.4 LINE MANAGEMENT PERSONNEL. . . . . . . . . . . . . . . . . . . . . . . . . . 2-7

3 GAS FREE ENGINEERING PROCEDURES . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

3-1 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

3-2 NEED FOR GAS FREEING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

3-3 EVALUATION OF CONFINED OR ENCLOSED SPACE OR OTHER DANGEROUS

ATMOSPHERE HAZARDS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

3-4 CLASSIFICATION OF CONFINED OR ENCLOSED SPACES. . . . . . . . . . . . . . . . . 3-2 3-4.1 CLASS I SPACE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2 3-4.2 CLASS II SPACE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2 3-4.3 CLASS III SPACE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2 3-4.4 CLASS IV SPACE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

3-5 ENTRY AND WORK RESTRICTIONS FOR CLASS I AND CLASS II SPACES. . . . . . . 3-3

3-5.1 CLASS I SPACES.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3 3-5.2 CLASS II SPACES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

3-6 GENERAL REQUIREMENTS FOR ENTRY AND WORK. . . . . . . . . . . . . . . . . . . . 3-4

3-7 TESTING PROCEDURES FOR CONFINED AND ENCLOSED SPACES. . . . . . . . . . . 3-5

3-7.1 TESTING AND EXAMINATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5 ii

3-7.2 PERIODIC AND CONTINUOUS TESTING.. . . . . . . . . . . . . . . . . . . . . . 3-7

3-8 SPACE CERTIFICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7 3-8.1 CERTIFICATE DISTRIBUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7 3-8.2 CERTIFICATE CONTENT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8 3-8.3 CATEGORY OF CERTIFICATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8 3-8.4 INITIAL CERTIFICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9

3-8.5 CONTINUOUS OR PERIODIC TESTING AND MAINTAINING CERTIFICATES.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13 3-8.6 TESTING AND RECERTIFYING SPACES. . . . . . . . . . . . . . . . . . . . . . . 3-13

3-9 EMERGENCY AND RESCUE PROCEDURES. . . . . . . . . . . . . . . . . . . . . . . . . . 3-13

3-10 INSTRUMENTATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-14 3-10.1 APPROVED INSTRUMENTS.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-15 3-10.2 LIMITATIONS OF INSTRUMENTS. . . . . . . . . . . . . . . . . . . . . . . . . . . 3-15 3-10.3 CALIBRATION AND MAINTENANCE. . . . . . . . . . . . . . . . . . . . . . . . . 3-15

3-11 PERSONAL PROTECTIVE EQUIPMENT (PPE). . . . . . . . . . . . . . . . . . . . . . . . . 3-15 3-11.1 RESPIRATORY PROTECTION.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-15 3-11.2 RESPIRATORY PROTECTION PROGRAM.. . . . . . . . . . . . . . . . . . . . . . 3-16

3-12 BREATHING AIR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-16

3-13 SPACES WITH RESTRICTED ACCESS AND HAZARDOUS ATMOSPHERES. . . . . . . . 3-16

3-13.1 BLOCKED ACCESS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-16 3-13.2 SINGLE ACCESS.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-16

4 VENTILATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

4-1 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

4-2 BASIC REQUIREMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

4-3 VENTILATION PRIOR TO ENTRY OR WORK . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

4-4 VENTILATION PRIOR TO ENTRY OR WORK . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1 4-4.1 GENERAL VENTILATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2 4-4.2 DILUTION VENTILATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

4-5 VENTILATING FLAMMABLE ATMOSPHERES . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

4-6 VENTILATION SYSTEM ARRANGEMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2 4-6.1 AIR CIRCULATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2 4-6.2 MAKE-UP AIR. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2 4-6.3 EXHAUST OUTLETS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

4-6.4 CONTAMINANTS LIGHTER OR HEAVIER THAN AIR. . . . . . . . . . . . . . . 4-3

iii

4-6.5 BLOWING VERSUS DRAWING AIR. . . . . . . . . . . . . . . . . . . . . . . . . . 4-3 4-6.6 VENTILATION DUCTING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

4-7 VENTILATION REQUIREMENTS FOR SPECIFIC OPERATIONS. . . . . . . . . . . . . . . 4-3 4-7.1 WELDING, CUTTING, BURNING AND BRAZING. . . . . . . . . . . . . . . . . . 4-4 4-7.2 PAINTING, COATING AND USE OF SOLVENTS.. . . . . . . . . . . . . . . . . . 4-5 4-7.3 ABRASIVE BLASTING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6

5 HOT WORK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

5-1 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

5-2 HOT WORK OPERATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

5-3 SPACE CLEANING AND VENTILATING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

5-4 BOUNDARY SPACES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

5-5 FIRE PREVENTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1 5-5.1 FIRE WATCH. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1 5-5.2 FIRE EXTINGUISHING EQUIPMENT.. . . . . . . . . . . . . . . . . . . . . . . . . 5-2

5-6 HOT WORK IN THE WAY OF PRESERVATIVE COATINGS . . . . . . . . . . . . . . . . . . 5-2 5-6.1 FLAMMABLE/COMBUSTIBLE COATINGS. . . . . . . . . . . . . . . . . . . . . . 5-2 5-6.2 TOXIC COATINGS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2 5-6.3 SOFT, GREASY, PRESERVATIVE COATINGS.. . . . . . . . . . . . . . . . . . . . 5-2

5-7 HOT WORK IN THE PRESENCE OF SCALING. . . . . . . . . . . . . . . . . . . . . . . . . 5-3

5-8 PIPES, TUBES, COILS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3

5-9 HOT WORK IN THE PRESENCE OF PRESSURIZED SYSTEMS. . . . . . . . . . . . . . . 5-3

5-10 GAS WELDING, CUTTING AND BRAZING . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3 5-10.1 COMPRESSED GAS CYLINDERS.. . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3 5-10.2 GAS WELDING AND CUTTING EQUIPMENT. . . . . . . . . . . . . . . . . . . . 5-4 5-10.3 GAS SUPPLIES.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4

5-11 ELECTRIC ARC PROCESSES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4 5-11.1 ELECTRIC ARC UNITS OR MACHINES.. . . . . . . . . . . . . . . . . . . . . . . 5-4 5-11.2 ELECTRIC ARC EQUIPMENT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4 5-11.2 ELECTRODE HOLDERS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4

5-12 INERT GAS PROCESSES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4

5-13 HAZARDOUS BY-PRODUCTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4

5-14 HOT WORK ON CLOSED CONTAINERS OR STRUCTURES. . . . . . . . . . . . . . . . . 5-4 iv

5-15 EXPLOSIVES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5

5-16 PAINTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5

6 SPACE CLEANING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1

6-1 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1

6-2 GAS FREE ENGINEERING PERSONNEL RESPONSIBILITIES. . . . . . . . . . . . . . . . 6-1

6-3 CLEANING METHODS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1

6-4 STEAM CLEANING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1

6-5 GENERAL SAFETY PRECAUTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2

7 INERTING, PRESSING-UP AND STEAM BLANKETING . . . . . . . . . . . . . . . . . . 7-1

7-1 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1

7-2 RESTRICTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1

7-3 GAS INERTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1 7-3.1 LIQUID LEVELS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1 7-3.2 GENERAL PROCEDURES FOR GAS INERTING.. . . . . . . . . . . . . . . . . . 7-2 7-3.3 VENTING GASES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2 7-3.4 USE OF COMPRESSED CARBON DIOXIDE.. . . . . . . . . . . . . . . . . . . . 7-2

7-4 PRESSING-UP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3 7-4.1 RESTRICTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3

7-5 STEAM BLANKETING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3 7-5.1 REQUIREMENTS.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3

A DEFINITIONS AND ABBREVIATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1

B REFERENCE DOCUMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1

Technical Manual Deficiency/Evaluation Report (TMDER) . . . . . . . . . . . . . . . . . . 0-1 v

LIST OF TABLES

Table Title Page

4-1 Exhaust Ventilation Flow Rates. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5 vi

LIST OF ILLUSTRATIONS

Figure Title Page

3-1. Gas Free Engineering Flow Chart.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5

3-2. NO ENTRY -- NO HOT WORK or NO ENTRY -- SAFE FOR PERSONNEL AND HOT WORK OUTSIDE, INERTED OR PRESSED-UP Certificate (paragraph 3–8.3.a,e).. . . . . 3-10

3-3. SAFE FOR ENTRY WITH PPE -- NOT SAFE FOR HOT WORK or SAFE FOR ENTRY -- NOT SAFE FOR HOT WORK Certificate (paragraph 3–8.3.b,c).. . . . . . . . . . . . . . . 3-11

3-4. SAFE FOR ENTRY -- SAFE FOR HOT WORK Certificate (paragraph 3–8.3.d).. . . . . . . . 3-12

APPLICATION FOR CERTIFICATION AS A NAVY GAS-FREE ENGINEER AT NAVY

MARITIME FACILITIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0-3 vii

SAFETY SUMMARY

SAFETY SUMMARY The following are general safety precautions. They are precautions that personnel must understand and apply before entering or performing work in confined or poorly-ventilated enclosed spaces or locations.

GAS FREE OPERATIONS Only properly trained and designated Gas Free Engineering personnel as required by this manual shall be permitted to perform initial entry of confined or poorly-ventilated enclosed spaces or locations, to conduct atmospheric tests, and to make determinations of the conditions under which cold or hot work may be safely conducted therein, or adjacent thereto.

GENERAL SAFETY PRECAUTIONS General safety precautions related to the occupancy and perfor-mance of work in or adjacent to closed or poorly-ventilated enclosed spaces and locations are:

1. Personnel will not be allowed to enter untested confined spaces.

2. Procedures must exist for the prompt rescue of an incapacitated worker.

3. All confined or poorly-ventilated enclosed spaces shall be considered hazardous and entry into or work in or on, such spaces is prohibited until the space has been tested and found to be safe.

4. Personnel entering spaces to conduct gas free testing or cleaning operations shall be provided with appropriate personal protective clothing and equipment.

5. Personal protective clothing and equipment shall be cleaned and maintained in good operating condi-tion.

6. Personnel should be especially aware that unlikely structures with hollow spaces, such as stanchions, railings, bitts, piping, and drums, present safety hazards if hot work is to be performed on the outside.

7. Personnel exposed to contaminants during cleaning operations shall observe good hygiene practices.

8. Flammable and toxic vapors and materials may be present in, or become trapped in, sludge. Tests of the space may show satisfactory conditions. However, when the sludge is disturbed, toxic or flam-mable vapors may be released. Contact with the sludge may expose personnel to toxic contaminants.

Adequate precautions shall be observed when personnel enter spaces where a sludge is present which may contain or may trap toxic or flammable materials.

9. General safety precautions for the control of other hazards, such as slip, trip or fall hazards, electri-cal hazards, low overheads and ladders, shall be provided consistent with applicable NAVOSH Stan-dards.

WARNING

Certain operations such as venting reactors and battery charging operations may exceed PELs and LELs. Personnel will not occupy the affected spaces during periods when concentrations are at or above 10% of the LEL or toxic concentrations are immediately dangerous to life or health (IDLH). (Page 4-6) viii

CHAPTER 1

INTRODUCTION

1-1. PURPOSE

The policies of the Department of the Navy regarding gas free engineering for operations involving entry into or work in, on or adjacent to confined or poorly-ventilated enclosed spaces are mainly concerned with the safety and health of personnel and the protection of naval ships and facilities. The purpose of this publication is two-fold:

a. To inform personnel engaged in confined or poorly-ventilated enclosed space operations of the hazards and precautions associated with such operations; and,

b. To prescribe in one central and authoritative publication, the regulations and procedures applicable to confined or poorly-ventilated enclosed space entry and work and the requirements for establishing and administering a Gas Free Engineering Program.

1-2. SCOPE

This publication provides policy, information and guidance and the minimum mandatory requirements for gas free engineering at naval maritime facilities. However, it is not all-inclusive and does not contain all conceivable operations and conditions which may be encountered in gas free engineering. Therefore, it is essential that all personnel carrying out gas free engineering functions clearly understand the intent, principles and concepts upon which these requirements are based so that, under circumstances not specifically covered, appropriate procedures will be followed. Areas that are not addressed are those hazards related to radiation, airborne non-explosive par-ticles or a biological agent.

1-3. APPLICABILITY

The regulations and procedures contained herein are applicable, except as noted, to naval maritime facilities as defined inAppendix A, including operations performed by naval shipyard personnel working on ships under-going availabilities off-shipyard, operations performed by ship’s force personnel while at naval maritime activi-ties, and to military and civilian personnel, as well as to other contractor operations and personnel when perform-ing work aboard Navy facilities, pursuant to the requirements of Public Law 91-596, Occupational Safety and Health (OSH) Act of 1970; Code of Federal Regulations 29 CFR 1915 (in general) and 1926 (on isolatable building construction/ demolition sites); Executive Order (EO) 12196; Department of Defense Instruction 6055.1 Series (DODI 6055.1); and, Chief of Naval Operations Instruction 5100.23 Series (OPNAVINST 5100.23). The intent and purpose of this publication shall be applied and adopted, to the maximum extent practicable, within the Navy Diving Program. The Shipboard (Afloat) Gas Free Engineering Program is governed by the Naval Ships Technical Manual - Chapter 074, Volume 3 (NSTM 074, Vol 3).

1-4. MANDATORY AND ADVISORY PROVISIONS

The requirements contained herein to which the terms″shall″, ″will ″, or ″must″ are used are mandatory.

Advisory requirements are those in which″should″ is used. Advisory requirements shall be complied with unless exceptions are authorized by the Gas Free Engineer. Permissive requirements are those in which″may″ is used.

No specific authorizations are required for use of, or deviation from, permissive requirements.

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1-5. SUPPLEMENTARY INSTRUCTIONS

Higher authority instructions may implement additional more stringent requirements. Unless this manual spe-cifically exempts or supersedes those requirements, they will be followed. Other instructions shall not relax the minimum requirements of this manual.

1-6. CONFLICTING REGULATIONS

Conflicts with this instruction pertaining to the requirements shall be identified to Commander, Naval Sea Systems Command (SEA 00T). Interim measures which provide optimum safety shall be the responsibility of the Commanding Officer until any such conflicts have been resolved.

1-7. ALTERNATIVE CRITERIA STANDARDS

Part of the provisions of this publication constitute Navy Occupational Safety and Health (NAVOSH) stan-dards. When a command feels these standards must be modified for application to a particular working condition, a request for approval of an alternate criteria standard shall be submitted in accordance with the provisions of OPNAVINST 5100.23 Series.

1-8. RESPONSIBILITIES FOR GAS FREE ENGINEERING

1-8.1 COMMANDING OFFICER. The Commanding Officer, consistent with the inherent duties and responsi-bilities as set forth in Navy Regulations and as promulgated by directives from higher authority, is solely respon-sible for the safety and health of personnel, and the protection of property within the command. Accordingly, the Commanding Officer is responsible for establishing and conducting a complete and comprehensive Gas Free Engineering Program which meets the purpose, intent and specific requirements of this publication. In so doing, the Commanding Officer shall enforce the mandatory requirements of this manual and be guided by the advisory provisions. The Commanding Officer shall initiate procedures and directives and require inspections necessary to effect compliance with the standards and regulations prescribed herein. It is also the Commanding Officer’s responsibility to require that personnel of other agencies, including contractors, while within the purview of the command, conduct activities and operations in accordance with applicable laws and standards. The absence of a requirement in this manual does not necessarily indicate that safeguards are not required. Where no existing stan-dard or regulation applies, or where interpretation is necessary, the Commanding Officer shall submit to Com-mander, Naval Sea Systems Command (SEA 00T) full particulars and details and shall, in the interim, take nec-essary action to control the identified hazard.

1-8.2 OFFICERS, DIRECTORS AND MANAGERS. Management personnel, including department directors, division officers or managers, section heads and personnel occupying similar positions, who have under their control spaces, operations or personnel falling under the provisions of this manual, shall ensure that:

a. The provisions, procedures and requirements contained in this manual are fully met;

b. Gas Free Engineering (GFE) personnel perform all prescribed testing, apply all required controls and ascer-tain that spaces have been certified safe for the prescribed operations prior to commencement of such opera-tions;

c. Training is provided to employees entering confined or poorly-ventilated enclosed spaces; and, 1-2

d. An annual drill is conducted to verify that procedures are established for emergency rescue and medical treat-ment and that all appropriate personnel are familiar with such procedures.

1-8.3 SUPERVISORY PERSONNEL. Supervisors shall be familiar with the provisions of this manual as they relate to personnel or operations under their supervisory control. They shall act positively to eliminate any poten-tial hazards existing in operations under their control and shall:

a. Explain to all employees under their immediate supervision the nature of the hazards associated with the operations and the precautions necessary to control such hazards;

b. Strictly enforce observance of the safety and health requirements of this manual and pertinent referenced stan-dards and regulations; and,

c. Promptly report to their immediate superior any unsafe conditions or procedures and, where warranted by the severity of such conditions, cease all operations until corrective action has been effected.

1-8.4 OPERATING PERSONNEL. All persons engaged in confined or poorly-ventilated enclosed space entry or work are responsible for fully understanding and strictly observing the safety standards, regulations and pro-cedures applicable to such work. Further, each person shall:

a. Report to their immediate supervisor any condition, procedure or equipment that is considered unsafe;

b. Warn others believed to be endangered by failure to observe the proper procedures or precautions or of any other hazard of which they are aware; and,

c. Report to their supervisor any injury or evidence of impaired health occurring in the course of work or duty, or which may affect the safety performance of duties.

1-8.5 SAFETY, HEALTH, AND FIRE PROTECTION MANAGERS. Safety, health and fire protection manag-ers shall administer the Gas Free Engineering Program commensurate with the requirements of their respective areas of responsibility. Further, they shall coordinate their respective programs and efforts with the Gas Free Engineering Program to ensure optimum utilization of resources.

1-8.6 GAS FREE ENGINEER, GFE SUPPORT PERSONNEL.. The Gas Free Engineer is responsible for establishing and administering the overall activity Gas Free Engineering Program consistent with the require-ments of this manual and other pertinent safety, health and fire protection standards. GFE support personnel shall perform the duties and responsibilities specified herein and assigned by the activity Gas Free Engineer. Detailed duties and responsibilities of the Gas Free Engineer and GFE support personnel are set forth inChapter 2of this manual.

1-9. REPORTING OMISSIONS OR ERRORS IN THIS MANUAL

Ships, training activities, supply points, depots, Naval Shipyards, and Supervisors of Shipbuilding are requested to arrange for the maximum practical use and evaluation of NAVSEA technical manuals. All errors, omissions, discrepancies, and suggestions for improvement to NAVSEA technical manuals shall be reported to the Commander, NAVSURFWARCENDIV, 4363 Missile Way, Port Hueneme, CA 93043-4307 on NAVSEA/ SPAWAR Technical Manual Deficiency/Evaluation Report (TMDER), NAVSEA Form 4160/1. To facilitate such reporting, one copy of NAVSEA Form 4160/1 is included at the end of each technical manual. All feedback com-

1-3 ments shall be thoroughly investigated and originators will be advised of action resulting therefrom. Extra cop-ies of NAVSEA Form 4160/1 may be requisitioned from DDSP Susquehanna Pennsylvania, 05 E Street, Mechan-icsburg, PA 17055-5003. (S/N 0116-LP-019-5300) .

1-10. DATE OF PUBLICATION

The date of publication of this technical manual and of revisions and changes thereto, as shown on the title page, is the estimated date the publication is to be distributed. The manual, revision or change, however, is effec-tive upon receipt, regardless of the date shown on the title page.

1-11. DEFINITIONS

The definitions applicable to this publication are supplied inAppendix A.

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CHAPTER 2

GAS FREE ENGINEERING PROGRAM REQUIREMENTS

2-1. INTRODUCTION

Each naval maritime facility, as appropriate, shall establish and administer a comprehensive Gas Free Engi-neering (GFE) Program in accordance with the provisions of this manual. This chapter sets forth the minimum requirements for the GFE Program.

2-2. BASIC PROGRAM REQUIREMENTS

Each naval maritime facility shall issue an instruction, directive, manual or other implementing document establishing a Gas Free Engineering Program consistent with the provisions of this manual. As a minimum, the document shall include provisions for:

a. Observance of the procedures herein for all confined space entry or work;

b. The organizational location of the Gas Free Engineer and GFE support personnel and procedures for obtain-ing services of gas free engineering personnel for the performance of required space testing, treatment and certification;

c. Staffing of the gas free engineering function with personnel appropriate to the activity, qualified and certified in accordance withparagraph 2-6in sufficient numbers to meet the operating requirements of the activity;

d. Inspection of operations and enforcement of the provisions of gas free engineering policies and procedures as stated herein; and,

e. Instrumentation of the type necessary in sufficient quantity and in adequate repair and calibration to meet the gas free engineering requirements of the activity;

f. Training or indoctrination of personnel managing, supervising, instructing in or performing affected operations in the hazards of confined or poorly-ventilated enclosed spaces and the safety precautions necessary to con-trol such hazards; and,

g. Maintenance of required records, logs and other administrative requirements in support of the GFE Program.

2-3. STAFFING

All naval maritime facilities shall be adequately staffed, as appropriate, with personnel qualified in accor-dance withparagraph 2-4.1to perform gas free engineering services. As a minimum, each naval maritime facil-ity shall have:

a. One person trained, qualified and certified as a Navy Gas Free Engineer, or shall make provision for procur-ing and using the services of a National Fire Protection Association (NFPA) Certified Marine Chemist or a certified Navy Gas Free Engineer from another naval maritime facility; and,

b. GFE support personnel (Gas Free Engineers or Gas Free Technicians) properly trained, qualified and certified to meet the requirements of this manual and the workload requirements of the particular activity.

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2-4. GAS FREE ENGINEERING SERVICES PERSONNEL

The categories and commensurate training and qualification requirements for gas free engineering services personnel have been established as the result of careful and extensive evaluation of a number of factors which include: nature and extent of confined space entry and work normally conducted at naval maritime facilities;

knowledge, experience and performance capabilities required to properly recognize and control-gas free engineer-ing hazards and problems; and, requirements of Public Law 91-596, Occupational Safety and Health Act (OSHA) of 1970; Code of Federal Regulations 29 CFR 1915; Executive Order (EO) 12196; and implementing Depart-ment of Defense (DOD) and Department of the Navy (DON) directives. The categories of GFE personnel, with required qualifications, are established as presented in the following subparagraphs.

2-4.1 GAS FREE ENGINEER. The Gas Free Engineer (GFE) shall have earned a BS degree in Science or Engineering, or have the equivalent in experience and/or education per OPM guidelines (which includes general inorganic, organic, physical, qualitative and quantitative college level chemistry courses with labs), and have 3 years of progressively responsible experience related to gas free engineering, safety, industrial hygiene, fire pro-tection or a similar area, at least one year of which shall have been full-time employment in a naval maritime facility performing marine design, construction or repair, occupational safety or industrial hygiene duties. Prac-tical experience shall include three hundred or more hours of on-the-job training (OJT) in maritime gas free engi-neering operations on naval vessels or vessel sections under the supervision of a certified Navy GFE or NFPA Certified Marine Chemist, or other experience as deemed acceptable to the Board and, working knowledge of the construction of naval vessels including machinery spaces, cargo handling systems, hull and superstructure com-partmentation systems, and piping systems. The OJT must be accomplished in at least two naval maritime facili-ties (a minimum of one week at a second activity) under the direction of different certified Navy GFEs or NFPA Certified Marine Chemists, during which the candidate GFE must demonstrate practical ability to perform the full scope of GFE duties. The formal training and instructional requirements ofparagraph 2-5ashall have been sat-isfactorily completed.

2-4.2 GAS FREE TECHNICIAN. The Gas Free Technician (GFT) shall have a high school education or equivalent and at least 6 months applicable experience in a naval maritime facility environment or in safety, fire or health inspections. GFTs shall satisfactorily complete the formal training course of instruction specified in paragraph 2-5band shall complete 120 hours of field service training which includes 40 hours of supervised practical training and 80 hours of supervised OJT.

NOTE

Gas Free Engineer″In Training″ is a person who is in the process of obtaining the necessary educational experience and/or training toward certification as a GFE. Duties and responsibilities assigned to such personnel shall be in accor-dance withparagraph 2-10.3.

2-5. GAS FREE ENGINEERING TRAINING

a. The candidate GFE must satisfactorily complete the Naval Occupational Safety and Health and Environmen-tal Training Center Course A-493-0030, Confined Space Safety, attaining a grade of 90 percent or higher for the course. The official point of contact for course convening dates, locations and quota allocations is: Com-manding Officer, Naval Occupational Safety and Health, and Environmental Training Center, 9080 Breezy Point Crescent, Norfolk, VA, 23511-3998.

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b. GFT training shall be based on the essential elements of A-493-0030, this manual and local implementing instructions. The lesson plans shall be approved by the local GFE. Supplementary training for the GFT may be obtained through the Shipyard Competent Person Training Program sponsored by the Occupational Safety and Health Administration (OSHA).

2-6. GAS FREE ENGINEERING PERSONNEL CERTIFICATION AND RECERTIFICATION

2-6.1 NAVY GAS FREE ENGINEER CERTIFICATION BOARD. The Navy Gas Free Engineer Certification Board (hereafter called the Board) is established for the purpose of certifying Gas Free Engineers for service in naval maritime facilities. The Board’s charter (membership and duties) are set forth in SECNAVINST 5100.16, ″Gas-Free Engineer Certification/Recertification Process.″ The Board acts on the certification of Gas Free Engi-neer applicants and grants or denies certification or recommends additional training to Gas Free Engineer candi-dates depending upon the results of a thorough Board review of each individual applicant’s professional and practical qualifications, training record and other relevant accomplishments. The Board also reviews the perfor-mance of all Gas Free Engineers (GFEs) at least every five (5) years or after a significant incident involving the GFE’s naval maritime facility program and, appropriately, recertify or decertify the GFE.

2-6.2 GAS FREE ENGINEER CERTIFICATION PROCESS. In addition to the requirements of SECNAVINST 5100.16, the certification process for the Gas Free Engineer includes the following considerations:

a. The Commanding Officer, OSH Director by direction of the Commanding Officer, or a GFE with the written approval of the Commanding Officer, may recommend Gas Free Engineering candidates to the Board for cer-tification at least 120 days prior to the certification requirement date;

b. The Board reviews the GFE candidate application and grants, delays or denies certification. The Board will justify any delays or denials of certification, and the candidate may reapply when all Board concerns leading to delay or denial of the certificate have been satisfied;

c. A certificate, upon granting, shall be placed in an employee’s military or civilian personnel folder, and is good for five (5) years from the date of issue. The certificate is transferable from one naval maritime facility to another. The Gas Free Engineer Certification does not grant NFPA Certified Marine Chemist equivalency out-side naval maritime facilities;

d. The Commanding Officer may select any Board certified Gas Free Engineer to serve as a naval maritime facility Gas Free Engineer and must appoint him or her in writing. The appointment will be subject to sus-pension, in the event of a significant incident involving the GFE’s work, pending naval maritime facility and, if required, Board investigation; and,

e. Appointment of Gas Free Engineers by the Commanding Officer shall be made only after the Board has cer-tified the candidates as Gas Free Engineers.

2-6.3 RECERTIFICATION OF GAS FREE ENGINEERS. On a five-year cycle, the Commanding Officer shall recommend the GFE for recertification to the Board at least 120 days prior to the recertification date required.

The request for recertification shall provide information sufficient to enable the Board to review and assess the performance and activity of the GFE. Only GFEs who are actively engaged in gas free engineering work (i.e., 40 hours, 10 certificates, or an equivalent combination thereof on annual basis) and have demonstrated satisfactory work performance will be recertified. GFEs who have not been actively engaged in gas free engineering work shall complete a minimum 40 hours of OJT under the direct supervision of a certified Gas Free Engineer or NFPA Certified Marine Chemist to refresh their gas free engineering skills, prior to recertification.

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2-6.4 RECERTIFICATION OF GAS FREE ENGINEERS.

a. The GFE candidate will maintain a record of his education, training, knowledge and experience. The record shall include, but not be limited to, the following information:

1. Course(s) completed including dates and grades achieved; and,

2. OJT (each major experience) including: hours and location; trainer; name of ship or barge; identification of typical tanks or spaces inspected; type of work in progress; tests performed; and, test instruments used.

b. The candidate’s records will be forwarded to the chairman of the GFE Certification Board for review. The Board will advise the Commanding Officer sponsoring the GFE candidate concerning its determination as to the candidate’s eligibility for certification as a GFE.

2-6.5 GFT DESIGNATION. GFTs shall be designated by the Commanding Officer upon recommendation of the GFE, or by the GFE when authorized to do so by the Commanding Officer. Designation of a GFT shall be made only after it has been ascertained that the candidate has satisfactorily met all requirements specified in paragraph 2-4.2.

2-6.6 GAS FREE ENGINEERING PROGRAM REVIEW, EVALUATION AND AUDIT. The Commanding Officer shall make, or cause to be made, an evaluation of the Gas Free Engineering Program at least annually or following an incident to ensure all aspects of the program are being properly conducted.

2-6.7 CERTIFICATION RECORDS. GFE personnel certifications and designations shall be made a part of the individual’s personnel record as appropriate.

2-7. GFE PERSONNEL RELATIONSHIPS

The qualification, certification, and designation requirements for gas free engineering services personnel are specifically related to the various types of activities and the nature of operations normally conducted within each activity. Further, the intent and purpose of appropriate laws, regulations and directives must be observed. There-fore, the following relationships of gas free engineering personnel and operations shall be observed.

2-7.1 INTERCHANGEABILITY OF GFE PERSONNEL. Gas free engineering personnel, when used for GFE services at a command other than the command to which they are assigned, must meet the appropriate qualifi-cation and training requirements applicable to the command and operations for which the services are to be per-formed. The performance of such services is authorized where the GFE is qualified and certified. The following relationships shall be observed:

a. A shipboard (afloat) GFE, while his ship is in a naval maritime facility, may be formally designated as a GFT under the supervision of the naval maritime facility GFE. In this capacity as a GFT, the shipboard GFE may issue certificates for initial entry and cold work by Navy employees in spaces that do not contain significant levels of toxic or flammable materials and involve operations which do not generate significant levels of toxi-cants, flammables, or result in oxygen deficiency or enrichment;

b. The naval maritime facility GFE, due to the more sophisticated level of qualifications and training required, may perform GFE functions aboard ship (afloat) as well as at non-maritime facilities; and,

c. Navy gas free engineering personnel may retest and maintain a certificate initially issued by a NFPA Certified Marine Chemist for operations involving government personnel, provided that such personnel are functioning within their respective areas of authority and responsibility as set forth herein, and further provided that time

2-4 and/or conditions have not allowed a potential degradation of gas free conditions. Where these conditions have occurred, the space must be retested and recertified by a NFPA Certified Marine Chemist or GFE as appropri-ate.

2-7.2 ORGANIZATIONAL RELATIONSHIP OF GAS FREE ENGINEERING PERSONNEL. The Gas Free Engineer, irrespective of placement within the activity organization, shall be directly responsible to the Com-manding Officer or to the command’s designated safety and occupational health official, for all aspects of the Gas Free Engineering Program. Similarly, GFTs shall be directly responsible to the GFE, irrespective of their place-ment within the activity organization, for all duties and responsibilities prescribed by this manual or by the GFE in fulfilling responsibilities for the proper execution of the Gas Free Engineering Program.

2-8. CONTRACTOR OPERATIONS

Where contractors are performing work aboard Navy shipyards or ship repair facilities, the following provi-sions shall be observed:

a. The contractor, when performing shipboard operations, shall provide a NFPA Certified Marine Chemist or competent person as appropriate under the provisions of 29 CFR 1915;

b. The contractor, when performing non-shipboard operations within the facility, shall provide a competent per-son as required in 29 CFR 1915 or 29 CFR 1926 as applicable;

c. The appropriate laws and regulations make no provision for Navy gas free engineering personnel to perform gas free engineering services for contractor operations. Performance of such functions may involve assump-tion of liability by the Navy in the event of a mishap. Therefore, Navy gas free engineering personnel shall not certify spaces for contractor operations or personnel, except where failure to do so would create an extreme emergency endangering personnel or property, and may, therefore, create even greater potential liabil-ity;

d. Where Navy personnel and contractor personnel are to occupy the same space at the same time, both Navy GFE personnel and the appropriate contractor representative (Marine Chemist/competent person) shall declare the space gas free. The contractor shall be informed of the Navy GFE’s findings. However, regardless of any gas freeing and subsequent notification by Navy personnel, the contractor shall be informed by the Contract-ing Officer that the contractor retains legal obligation for the safety of contractor personnel; and, NOTE

Navy personnel cannot perform hot work based upon NFPA Certified Marine Chemist certification written for contractor operations without the space being retested by a GFT to ensure that conditions haven’t changed.

e. In all cases involving contractor operations aboard Navy activities, the Contracting Officer shall inform the appropriate contractor that the contractor’s shipyard competent person shall be adequately qualified and that all operations are to be conducted in accordance with the provisions of 29 CFR 1915.

2-9. ADMINISTRATIVE AND RECORD KEEPING REQUIREMENTS

2-9.1 GAS FREE ENGINEERING TEST LOG. A Gas Free Engineering Log or logs shall be maintained for all tests and inspections of confined or poorly-ventilated enclosed spaces required by the provisions of this

2-5 manual. The Gas Free Engineering Certificates are acceptable as a substitute for the Gas Free Engineering Log provided the certificate contains all of the information required for the Log. The Log, as a minimum, shall con-tain the following information:

a. Date and time of test or inspection;

b. Location and identification of the space and ship or building;

c. Tests conducted and test results;

d. Prescribed actions or instructions (ventilation, personal protective equipment (PPE) required, etc.);

e. Type of work to be performed, i.e. hot work, spray painting, etc. ; and,

f. Name of the person conducting the test or inspection.

2-9.2 GAS FREE ENGINEERING CERTIFICATE. A Gas Free Engineering Certificate, as required byChapter 3 of this manual, shall be issued for each confined or poorly-ventilated enclosed space tested in accordance with the requirements of this manual.

2-9.3 RECORDS RETENTION. All Gas Free Engineering Logs and/or Certificates shall be on file for a period of at least 3 months from the completion date of the specific job for which they were generated.

2-10. DUTIES AND RESPONSIBILITIES

2-10.1 GAS FREE ENGINEER. The Gas Free Engineer shall be responsible for:

a. Establishing and administering the Gas Free Engineering Program as required by this manual;

b. Ensuring that procedures for the application of the provisions contained herein for confined space testing, treatment and certification prior to entry or work are established;

c. Ensuring that required instrumentation in sufficient quantity to meet the requirements of the activity gas free operation is procured, maintained and calibrated;

d. Ensuring that all activity GFE support personnel are properly trained and qualified as specified herein, including knowledge of the proper gas free engineering procedures; proper use and calibration of instrumen-tation; selection, issue and maintenance of personal protective equipment (PPE) and emergency procedures for the specific activity;

e. Providing information for the indoctrination of all appropriate activity personnel, other than GFE personnel, regarding the hazards of confined spaces;

f. Providing visual inspection and testing of confined or poorly-ventilated enclosed spaces, preparation, issuance and posting of GFE certificates for the spaces, indicating the safe or unsafe conditions and required control measures of the space and operations therein;

g. Establishing requirements for cleaning, ventilating, inerting, pressing-up or other treatments which maybe required for confined or poorly-ventilated enclosed spaces;

h. Observing, as needed, operations to verify that proper procedures are followed prior to…