NORSOK STANDARD

1 NORSOK STANDARDWORKING ENVIRONMENTS-002 Rev. 3, November 1997 Please note that whilst every effort has been made to ensure the accuracy of the NORSOK standardsneither OLF nor TBL or any of their members will assume liability for any use environmentS-002 Rev. 3, November 1997 NORSOK standardPage 1 of 50 CONTENTSFOREWORD3 INTRODUCTION31 SCOPE42 NORMATIVE REFERENCES43 DEFINITIONS AND Abbreviations74 CONTROL AND VERIFICATION Procedures and work Experience Concept working environment Organisation and manning Risk Psycho-social Working environment area Working environment Constructability Working environment Working environment status135 WORKING ENVIRONMENT Technical Chemical substances and Noise and Indoor Outdoor Radiation21 ANNEX A WORKING ENVIRONMENT AREA LIMITS (NORMATIVE)22 ANNEX B VERTICAL AND HORIZONTAL CLEARANCES AND DISTANCES(NORMATIVE)24 ANNEX C DETAILED REQUIREMENTS RELATED TO INSTALLATION AREAS(NORMATIVE)27 ANNEX D TYPICAL HAZARDOUS SUBSTANCES (NORMATIVE)28 ANNEX E VIBRATION LIMIT CURVES (NORMATIVE)31 ANNEX F WORKING ENVIRONMENT AREA CHART (NORMATIVE)

2 33 ANNEX G LIST OF APPLICABLE ACTS, REGULATIONS, standards ANDGUIDELINES FOR THE NORWEGIAN CONTINENTAL SHELF (INFORMATIVE)35 Working environmentS-002 Rev. 3, November 1997 NORSOK standardPage 2 of 50 ANNEX H NOISE DATA SHEET (INFORMATIVE)36 ANNEX I EXAMPLES OF METHODS FOR ANALYSIS OF THE WORKINGENVIRONMENT (INFORMATIVE)38 ANNEX J PROCEDURE FOR NOISE CONTROL (INFORMATIVE)41 Working environmentS-002 Rev. 3, November 1997 NORSOK standardPage 3 of 50 FOREWORDNORSOK (The competitive standing of the Norwegian offshore sector) is the industry initiative toadd value, reduce cost and lead-time and remove unnecessary activities in offshore fielddevelopments and NORSOK standards are developed by the Norwegian petroleum industry as a part of theNORSOK initiative and are jointly issued by OLF (The Norwegian Oil Industry Association) andTBL (Federation of Norwegian Engineering Industries). NORSOK standards are administered byNTS (Norwegian Technology standards Institution).

3 The purpose of this industry STANDARD is to replace the individual oil company specifications for usein existing and future petroleum industry developments, subject to the individual company's reviewand NORSOK standards make extensive references to international standards . Where relevant, thecontents of this STANDARD will be used to provide input to the international standardisation to implementation into international standards , this NORSOK STANDARD will be A, B, C, D, E, F are normative. Annexes G, H, I and J are STANDARD applies to the design of new installations and modification or upgrading of existinginstallations for offshore drilling, production, utilisation and pipeline transportation of petroleum,including accommodation units for such 3 includes the following changes: Implementation of the parts of the guidelines to the Norwegian Regulations relating tosystematic follow up of the working environment in the petroleum activities that affectdesign.

4 Guidelines to the design of the living quarters and doors and stairs are found inNORSOK standards for the architectural discipline. Updating of the STANDARD in view of new regulations and European standards . Implementation of experiences from Revision 2 in project environmentS-002 Rev. 3, November 1997 NORSOK standardPage 4 of 501 SCOPEThis NORSOK STANDARD addresses design principles related to the working environment. It alsocovers requirements to the procedures for control and verification of design in order to ensure thatthese principles are purpose of this STANDARD is to ensure that the design of the installation promotes the quality ofthe working environment during the operational NORMATIVE REFERENCESThe following standards include provisions that, through reference in this text, constitute provisionsof this NORSOK STANDARD . Latest issue of the references shall be used unless otherwise recognised standards may be used provided it can be shown that they meet or exceed therequirements of the standards referenced 292 Safety of machinery - Basic concepts, general principles for design.

5 Part1 and 294 Safety of machinery - Safety distances to prevent danger zones to bereached by upper 349 Safety of machinery - Minimum gaps to avoid crushing of parts of thehuman 547 Safety of machinery - Human body 1 Principles for determining the dimensions required for openings forwhole body access into 2 Principles for determining the dimensions required for access 3 Anthropometric 563 Safety of machinery - Temperature of touchable surfaces - Ergonomicsdata to establish temperature limit values for hot 614 Safety of machinery - Ergonomic design 1 Terminology and general 626 Safety of machinery - Reduction of risks to health from hazardoussubstances emitted by 1005 Safety of machinery - Human physical 2 Manual handling of objects associated to 3 Recommended force limits for machinery 1050 Safety of machinery - Risk 12437 Safety of machinery - Permanent means of access to machines andindustrial plantspart 1 Choice of a fixed means of access between two levelspart 2 Working platforms and gangwayspart 3 Stairways, stepladders and guard trailspart 4 Fixed laddersDIN VDE 0848, Part 4 Safety at electro magnetic environmentS-002 Rev.

6 3, November 1997 NORSOK standardPage 5 of 50 ISO 717/1 Acoustic rating of sound insulation in buildings and of 5349 Guidelines for the measurement and the assessment of human exposureto hand-transmitted 2631/1 Evaluation of human exposure to whole body vibration- Part 1: C-001 Living quarters C-002 Architectural components and 4815 Determination of occupational noise 8172 Measurement of noise levels from technical Annex G for a list of acts, regulations, standards and guidelines for the Norwegian DEFINITIONS AND DefinitionsCanCan-requirements are conditional and indicate a possibility open to theuser of the work areaArea that is fully protected against exposure to open air and source of possible injury or damage to referencesShall mean informative in the application of NORSOK levels of manning of work areas and work places are defined:Permanently manned; Work area or work place manned at least 8 hoursa day for at least 50 per cent of the installation s operation manned; Work area or work place where inspection,maintenance or other work is planned to last at least two hours a day forat least 50 per cent of the installation s operation not manned; Work area or work place that is not permanentlyor intermittently indicates a course of action that is permissible within the limits ofthe STANDARD (a permission).

7 Normative referencesShall mean normative in the application of NORSOK work areaArea with no substantial obstacles to the free. The area is completelyexposed to ambient environmentS-002 Rev. 3, November 1997 NORSOK standardPage 6 of 50 Semi-open work areaArea that is weather protected with weather louvers, and partiallyexposed to the open is an absolute requirement which shall be followed strictly inorder to conform to the is a recommendation. Alternative solutions having the samefunctionality and quality are areaA work area is an area of the installation, where personnel stay or movein connection with place A work place is a volume within a work area, allocated to one or morepersons to complete work tasks related to production, inspection environmentThe totality of all physical, chemical, biological and psychologicalfactors at work that may affect the employees health and well beingthrough acute trauma or lasting exposure. The influences from lastingexposure may be positive and EnvironmentAnalysisA systematic work process including:Definition, limitation and break down of the installation with respect toone or more parameters ( area, activities during operation, type ofequipment, chemical substance).

8 Hazard of potential consequences to the employees health and, iffeasible, of probability of occurrence. Evaluation of needs of remedial of recommendations on remedial actions and/or of nonconformities and problems in meeting specifiedrequirementsWorking EnvironmentProgramA document covering:Working environment objective and goals and acceptance criteria forthe risk of occupational injuries and possible work-related illnessesduring environmentS-002 Rev. 3, November 1997 NORSOK standardPage 7 of 50 References to working environment to applicable procedures for control and for implementation of working environmentrequirements in design and for control and verification activities,including means of ensuring that the employees and their electedrepresentatives are given an opportunity of participating in matters ofimportance to the working for control and verification activities, deliverables concerning performed Working environment program may be a separate document orintegrated into a Health, safety and environment AbbreviationsBOPBlow-Out Intervention in Offshore ProductionHVACH eating.

9 Ventilation and Air Limit Chill Index4 CONTROL AND VERIFICATION GeneralThis STANDARD assumes that a Working environment program is established and 1 lists the studies and analyses to be performed and documented for new installations in orderto control and verify that the design principles in clause 5 are met. For modifications or upgradingof existing installations, new analyses shall be performed or existing analyses shall be updated forthe working environment factors that are affected by the modification. Responsibility and schedulefor the different control and verification activities shall be defined in the Working environmentprogram considering needs of timely input to design and procurement and needs of environmentS-002 Rev. 3, November 1997 NORSOK standardPage 8 of 50 Table 1 Overview of studies and BYExperience reportTo ensure experience transfer related to theworking environment from installations workingenvironment analysisTo identify and evaluate potential problemareas as input to concept selection andverification of be specified inworking environmentprogramOrganisation andmanning studyTo provide input to the establishment ofworking environment area requirements and toworking environment studies and analysisTo verify compliance with company acceptancecriteria for the risk of occupational injuries andto identify the necessary assumptions forconcept selection and optimisation and fordetail be specified inworking environmentProgramPsycho-social analysisTo analyse design and planned organisationand manning in order to make an overallevaluation of the working environment and toidentify potential problem areas related to thepsycho-social working environment

10 Environmentarea limitsTo establish and implement area limits forillumination, temperature, concentration ofchemical substances in the workingatmosphere, ventilation and noiseTo be specified inworking environmentprogramWorking environmentanalysesTo identify and evaluate potential problemareas for different working environment factorsas input to concept definition and optimisationand design be specified inworking environmentprogramConstructabilityanalys isTo ensure that the design promotes asatisfactory health, safety and environmentstandard during be specified inworking environmentprogramWorking environmentinspectionsTo verify that the fabricated mechanicalpackages, modules and structures meet theworking environment be specified inworking environmentprogramWorking environmentstatusTo provide an updated overview of the statuson the different working environment be specified inworking Procedures and work instructionsProcedures and work instructions for the defined studies and analyses according to clause shallbe developed and maintained.