1213877284000 ril eye protection standard rev 0 june 2008

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    RIL Group StandardsEye Protection

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    Document Control Details

    Revision Date Reason For Issue Compiled by Approved by

    0 June 08 CorporateStandard Dinesh Vaidya Dr Prasad Tipnis

    Next Review Date

    June09

    User Notes: - The Centre for Health Safety and Environment Excellence (CHSEE) is thecustodian of this document and is responsible for the Administration and Authorization of this

    Standard. CHSEE is responsible for confirming the accuracy and integrity of content andproposed changes to the Standard.

    Controlled copy of the current version of this document is held at CHSEE and also available onits portal. Any printed / electronic copy of this document is uncontrolled. It is recommendedthat users verify that the version being used by them is the current version by referring to thecontrolled version

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    Eye Protection RIL Group Standard

    Acknowledgement

    The management acknowledges the contributions of the following individuals for being a part ofthe inter-site workgroup and for their assistance in preparing this standard for Eye Protection

    Location Members

    CHSEE Mr. Dinesh Vaidya

    Jamnagar Mr. Nihar Satpathy

    Mr. HM Padhariya

    Hazira Mr. Pranjal Changmai

    Mr. GC Sekar

    Patalganga Mr. Ajay Kale

    Mr. Sunil Kumar

    Vadodara Mr. Puyesh Pandey

    Mr. Shailesh Doshi

    Nagothane Mr. Mohan Mithagre

    Mr. Sandeep Durge

    Gandhar Mr. Santosh Pandey

    Mr. Navalkishor Upadhayay

    The management also acknowledges the guidance and help of the following experts fromDuPont Safety Resources.

    Agency Members

    DuPont SafetyResources

    Dr. Anil Bhaskar

    Revision 0June 2008 2

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    Table of Contents

    DOCUMENT CONTROL DETAILS ...............................................1ACKNOWLEDGEMENT.............................................................. 2TABLE OF CONTENTS ............................................................... 3DOCUMENT ISSUE .................................................................... 4ABBREVIATIONS....................................................................... 5INTRODUCTION ........................................................................ 6

    Intent and Purpose............................................................................61. SCOPE AND FIELD OF APPLICATION ................................. 6

    1.1. Field of application ................................................................6

    1.2. Field of application ................................................................6

    2. REFERENCES ...................................................................... 73. MANAGEMENT RESPONSIBILITIES ................................... 74. DEFINITIONS ......................................................................85. STANDARD/GUIDELINES ................................................... 8

    5.1. General ..................................................................................8

    5.2. Lenses...................................................................................11

    5.3. Materials and methods of test of protectors ......................... 13

    5.4. Maintenance of protectors ................................................... 14

    5.5. Selection and procurement .................................................. 14

    6. MANAGEMENT SYSTEMS...................................................156.1. Support Resources............................................................... 156.2. Management Records .......................................................... 156.3. Audit Requirements............................................................. 156.4. Standard renewal process.................................................... 156.5. Deviation process................................................................. 156.6. Contact ................................................................................ 15Table 1: Filter lens shade numbers recommended for protectionagainst radiant energy..................................................................... 16

    Revision 0June 2008 3

    Figure 1: Face and Eye protectors .....................................................17

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    Document Issue

    The Standard Eye Protection is issued by the Centre for Health, Safety & EnvironmentExcellence (CHSEE), on behalf of Reliance Industries Limited management and form a part ofthe of Reliance Industries Limited HSE management system.

    Name: ................................................................................................................................................

    Signed: ..............................................................................................................................................

    Revision 0June 2008 4

    Date: ..................................................................................................................................................

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    Eye Protection RIL Group Standard

    Abbreviations

    RIL - Reliance Industries limited

    HSE - Health, Safety and Environment

    CHSEE - Centre for Health, Safety and Environment Excellence GMS - Group Manufacturing Services

    ASME - American Society of Mechanical Engineers

    CES -Central Engineering Services

    ASME - American Standard for Mechanical Engineers

    CO - Carbon Monoxide

    Revision 0June 2008 5

    OSHA -Occupational Safety & Health Administration

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    Eye Protection RIL Group Standard

    Introduction

    Safety spectacles, goggles and face-shields when used correctly, provide protection to eyes andface against injuries from flying objects, chemical splashes and harmful rays that cannot alwaysbe controlled at the source. The standard Eye Protection provides guidelines on selection andcorrect use of eye protection equipments.

    Intent and Purpose

    This standard has been developed by an inter-site workgroup with guidance ofexperts from DuPont Safety Resources. The requirements which have beenidentified here are equally applicable across all locations and group companies.This will also help in bringing about a consistency in the process used across alllocations.

    The Standard will help to provide a new impetus towards achieving the best inclass safety standards. This revision-0 release of the standard is formulated basedon world class practices and with the help of DuPont Safety Resources.

    Comments and feedback would be appreciated to further enhance this process. Allsuch comments and feedback may be addressed [email protected]. The comments and feedback would beconsolidated and shall be used during the review and revision of future releases

    1. Scope and field of application1.1. Field of application

    This standard describes the recommended basic requirements for eye protection.It describes briefly the types of equipment available and their application.

    Eye-protection equipment referred to includes protection against impact,penetration, molten metal splashes, chemical splashes, dusts, glare, and injuriouslight radiation (infrared and ultraviolet). It does not include the special protectionrequired to prevent damage from x-rays, gamma rays, and high-energy particulateradiations such as alpha, beta, or neutron.

    Businesses/Locations should be aware that local regulations might imposeconditions not reflected in this standard. Additional information on regulationscomes from a number of sources, including Statutory/Regulatory Documents.

    While the intent of the Standards is to bring in homogeneity across all Businesses /locations in the implementation of the standards, certain provisions are kept toallow some latitude to the implementing locations. However, those requirementsin this standard which are noted in italicsare mandatory. Any question regardingthe interpretation of the standards in respect of mandatory versus non mandatoryshould be referred to the Centre for HSE Excellence for clarification.

    Portions appearing in boldface ital ics are from OSHA and ANSI standards

    Revision 0June 2008 6

    1.2. Field of applicationSee RIL HSE Protocol and Corporate Policy

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    2. ReferencesCorporate Policy

    RIL HSE Protocol

    RIL HSE Commitment

    Responsible Care

    Corporate Standard

    RIL Hot Work Permits

    RIL Safety Requirements for High Pressure Water Cleaning

    3. Management Responsibilities3.1. Clinical studies and actual experience indicate that contact lenses can be wornsafely in most work environments provided appropriate, approved eye

    protection as described in 3.3 is worn where eye protection would be required asa part of the employee's job assignment.

    3.2. Based upon analysis of the potential eye hazards in the workplace and localexperience, sites may restrict the wearing of contact lenses in certain locationswhich shall be appropriately identified. Contact lenses may present potentialproblems to the wearer under certain conditions, such as:

    a. Extremely dusty environments where particles may get under the lensand cause irritation.

    b. Extremely hot and/or dry environments, such as around furnaces orinfrared heaters where the eye may be exposed directly to the radiatedenergy.

    3.3. Each site shall develop a contact lens policy which includes the followingminimum requirements.

    3.3.1. Identifies all contact lens wearers on the site.

    Revision 0

    3.3.2. Requires all employees to notify the site medical staff and theirimmediate supervision of contact lens use.

    3.3.3. Provides for quick identification of contact lens wearers for emergencytreatment by such means as color coding medical files and/or a specialmark on safety glasses, or other easily recognizable method.

    3.3.4. Suggest that all contact lens wearers have a back-up pair of eyeglasses(prescription industrial safety glasses where required) and lenssolutions available to them at the workplace.

    3.3.5. Reviews the signs and symptoms of eye irritation with the contact lenswearers and periodically monitors their visual status.

    June 2008 7

    3.4. Each site shall ensure that the medical staff and first aid personnel are trained inprocedures for eye injuries in contact lens wearers which includes providing and

    instructing in the use of suction-type contact lens removers.

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    4. Definitions5. Standard/guidelines

    5.1. General5.1.1. Suitable eye protection shall be provided for all employees

    and visitors where operations present the hazard of flyingobjects, glare, liquids, injurious light radiation, dust, ormolten metal splashes (OSH A1910.102).

    In respect of any such manufacturing process carried out inany factory as may be prescribed, being a process whichinvolves-

    risk of injury to the eye from particles or fragmentsthrown off in the course of the process, or

    5.1.2. General or minimum protection should be required on an exposure areaor building basis as well as on a job or craft basis. Special protection forhazardous work shall be worn in addition to, or in lieu of, requiredgeneral area eye protection.

    5.1.3. Design, construction, testing and use of devices for eye andface protection, shall be in accordance with ANSI Z87.1Practice for Occupational and Educational Eye and FaceProtection (OSH A 1910.134).

    5.1.3.1. Several manufactures are producing protective eyewear(spectacles) which deviate from design requirements (frame

    and lens mounting) in ANSI Z87.1. These types of eyewearmay be used by employees and visitors provided writtencertification is obtained from the manufacturer that theeyewear meets all performance criteria of ANSI Z87.1. Anexample of such eyewear is the Norton 180 spectacle.

    5.1.4. All employees (including contractors) whose job requires the use ofindustrial eye protection shall be trained in the proper use of the eyewashfacilities provided at the site.

    5.1.5. Styles and functions of protectors5.1.6. Face shields (Figure 1J)

    5.1.6.1. Devices listed under this heading are designed to provideprotection for the face and neck from flying particles andsprays of hazardous liquids.

    5.1.6.2. Many styles and shapes are available, and selection must bemade on the basis of protection needed.

    5.1.6.3. The window, or transparent section, shall be made of suitableplastic (see 5.2). It may be supported in a frame hood, as anaddition to headgear, or any manner suitable for the purpose.

    Revision 0June 2008 8

    5.1.6.4. Face shields shall be worn over suitable safety spectacles.Splash goggles are recommended under face shields whenprotection from hazardous liquid splashes is required.

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    5.1.7. Goggles, welding (Figures 1G, 1H, and 1I)5.1.7.1. These are available in two basic types, one designed for

    individuals who do not wear corrective spectacles, and thecover type designed to fit over corrective spectacles.

    5.1.7.2. These goggles are available for brazing, gas welding andcutting, and arc welding. Models with indirect ventilation areavailable to minimize fogging, yet exclude particles andliquids. For brazing, gas welding and cutting, filter lenses shallbe used. See Table 1 for minimum lens shaderecommendations. Shades more dense may be used as desired.

    5.1.8. Goggles, flexible fitting (Figure 1B)5.1.8.1. These splash goggles are intended primarily for protection

    against dust, fumes, liquids, mists, and spray. The frames maybe rubber or other suitable elastomer or flexible plastic. The

    more desirable have a soft flexible frame which molds itselfwell to the contour of the face. Indirect ventilation is provided,protecting against direct splash. Splash goggles shall not beattached to the hard hat when in position over the eyes.

    5.1.8.2. Lenses are replaceable and may be either hardened(toughened) glass or a suitable plastic. This type goggle givesbetter protection than side shield spectacles and is suitable forhigh hazard areas.

    5.1.8.3. Where required, the design shall be such that the goggles willfit over spectacles worn by the wearer.

    5.1.9. Goggles, plastic eye-shield (Figures 1A and 1C)5.1.9.1. This is a lightweight goggle, usually all plastic, with integral or

    removable face piece, designed to protect the eyes and theimmediate facial area against flying objects.

    5.1.9.2. Models are available to fit over ordinary spectacles makingthis item a popular one for general coverage only wherehazards are light.

    5.1.9.3. Where required, the design shall be such that the goggle willfit over spectacles worn by the wearer. Goggles shall not beattached to the hard hat when in position over the eyes.

    5.1.10. Spectacles, metal or plastic frame (Figure 1D, 1E, and 1F)5.1.10.1. Spectacles without side-shields are designed for frontal eye

    protection only against light flying objects. Because of thelarge unprotected opening at the sides and above, they shouldbe used only in areas of light hazards. They are obtainablewith hardened glass or plastic lenses of standard 3 mmthickness.

    Revision 0June 2008 9

    5.1.10.2. Safety spectacles with proper side shields, if correctly fitted tothe face, provide eye protection against flying objects from all

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    angles and some protection against harmful liquids. Careshould be taken in selecting the type of side shields used. Cup-type side shields which are permanently mounted on the lensframe (not to the temples) (Figure 1E) give the greatestprotection. Although self-locking slides on side shields areacceptable, they shall be firmly secured to protect against

    accidental removal and be in accordance with ANSI Z87.1.

    5.1.10.3. Side shield spectacles, or equivalent, should be the minimumrequired for mechanical work. At several plant locations,safety spectacles with side shields permanently attached tothe lens frame are the minimum required for mechanical workareas, and in general chemical operating areas andlaboratories.

    5.1.11. Goggles - visitors5.1.11.1. These are lightweight protectors with the lens and frame

    molded as one piece. Temples are provided for support. Theymay be worn over prescription glasses.

    5.1.11.2. Visitor's goggles provide minimal protection and should beused only for casual exposure to visitors in low hazard areas.

    5.1.11.3. Clip-on type spectacles designed for use on non-safetyspectacles are not recommended under any circumstances.

    5.1.12. Welding helmets and hand-shields (Figure 1K)5.1.12.1. These devices are designed to provide protection for the eyes,

    face, ears, and neck against intense radiant energy. Typicaloperations requiring helmets or hand-shields include variouskinds of arc welding and heavy gas cutting.

    5.1.12.1.1. The helmet and hand-shield are bowl-shapeddevices containing a window with filter plate,which allows the wearer to see the radiant object,yet prevents harmful intensities of radiation fromreaching his eyes.

    5.1.12.1.2. See Table 1 for minimum recommended filter lensor plate shade numbers to be used in welding,brazing, and cutting operations. However, low

    amperage electric arc welding operations mayrequire filter plate shades less than Shade No. 10 inorder for the older welder to view the work moreacutely.

    5.1.12.1.3. The window with filter plate does not affordadequate protection from broken glass uponimpact. Therefore, safety spectacles shall be wornunder welding hood; or plastic cover plates on bothsides of filter plate shall be used.

    Revision 0June 2008 10

    5.1.12.1.4. The helmet or hand-shield body shall be made ofvulcanized fiber, reinforced plastic, or othersuitable material which shall be heat and flameresistant, opaque to visible, ultraviolet, andinfrared radiations and capable of disinfection.

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    5.2. Lenses5.2.1. Basic types

    5.2.1.1. Clear LensesImpact resisting providing protection against flyingobjects.

    5.2.1.2. Filter LensesImpact resisting and providing protection against glare,injurious light radiation, or both.

    5.2.1.3. Protective Corrective LensesEither clear or filter, as specified, for persons havingdefective vision.

    5.2.1.4.

    Filter plates (used in welding helmets and hand-shields)

    Impact resisting and providing protection againstinjurious light radiation.

    5.2.2. General Requirements5.2.2.1. Lens Thickness

    Glass or plastic lenses for use in eye-cup gogglesor metal- or plastic- frame spectacles shall be notless than 3.0 mm in thickness. Plastic lenses forflexible fitting goggles, plastic-eye-shield goggles,and plastic-eye-shield spectacles shall be not lessthan 0.050 inch (1.27 mm) in thickness. Plasticfor face shields shall be not less than 0.040 inch(--mm) (OSH A 1910.133 and 1926.102).

    5.2.2.2. Optical qualityAl l lenses shall meet the minimum r equir ementsof ANSI Z87.1 for optical quality, prismatic andrefractive power and light transmittance.

    Revision 0June 2008 11

    5.2.2.2.1. Variable-Tint Plano (non-corrective) andcorrective-protective(prescription)phototropic (photochromic) lenses are notallowed for indoor application and areallowable only for outdoor tasks which donot involve hazardous ultraviolet orinfrared radiation or both, providing thelens requirements of ANSI Z87.1 are metwith respect to refractive power, prismaticpower, definition, thickness, and impact.All phototropic lenses shall be distinctlyand permanently marked with the symbolV as well as manufacturer's monogram.

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    5.2.2.3. MaterialsIndustrial safety glass lenses are made from either (1)plastic or (2) glass which is either heat-treated orchemically treated. The recommended material forspectacle lenses within RIL is polycarbonate plastic with a

    scratch-resistant coating and UV inhibitor.5.2.2.3.1. Polycarbonate is recommended over glass

    for the following reasons:

    1. Polycarbonate has a higher impactresistance than glass.

    2. The impact resistance of polycarbonateis not significantly affected by surfacescratches or pit marks. Scratches orpitted heat-tempered glass safety lenseson the other hand have severelyimpaired impact resistance and shouldbe removed from service immediately.

    3. Polycarbonate offers reduced weight,lower cost, and ease of lens insertioninto frames.

    5.2.2.3.2. Use of glass special cases

    It may not be possible to obtain correctivepolycarbonate lenses for all prescriptions.In these rare cases, where glass is the onlysuitable alternative, the employee's jobshould be closely examined. Where

    exposure to impact hazards is present, suchas mechanical work, consideration shouldbe given to providing additional protectiveequipment (i.e., goggles).

    5.2.2.3.3. Suitable plastic for flexible lens and shieldsis cellulose acetate (i.e., goggles and faceshields).

    5.2.2.4. Fi lter LensesThe requirements for light tr ansmittance shall bein accordance with ANSI Z87.1 in addition to thetests for clear lenses li sted in 6.2.1.

    5.2.2.5. Filter plates shall not be less than 2.0 mm ormore than3.8 mm thick and shall conform toother requirements of ANSI Z87.1. Whenavailable, filter plates of hardened glass shouldbe specified (OSH A 1926.102).

    Revision 0June 2008 12

    5.2.2.5.1. Filter plates with a gold layer on the outsideafford excellent visibility in addition toreflecting heat from the welder.

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    5.2.2.6. Ultraviolet transmissionIn the ultraviolet region, a typical glass lens transmits lessthan 1.0% for wavelengths shorter than 300 nm(nanometer), while a polycarbonate lens hastransmittance 1.0% at a wavelength of 380 nm. Since

    short-term eye problems from ultraviolet radiation[welders (see Table 1) arc-eye] are known to be causedprimarily by ultraviolet in the region from 200 to 315 nmto a maximum of 20% transmission, a clear glass lensoffers a worthwhile degree of protection from strayultraviolet as compared to wearing no glasses.Polycarbonate lenses do a good job on absorbing the 200to315 nm region.

    5.2.2.7. Stress cracking of lensesAll plastic lenses regardless of material are subject to

    stress cracking. This stress cracking is a function of a largenumber of variables; time of wear, temperature of theworkplace, type and concentration of chemical vapor orvapors, cleaning methods used on the lenses, stress in thelens from mounting in a frame or from molding duringmanufacture. When cracking does occur, it usually startsas small cracks working in from the edge of the lens or asreadily visible cracks in the central area of the lens startingat the outer or convex surface. These cracks are visible tothe user. Scratched, pitted, chipped, or cracked lenses loseimpact resistance and must be replaced. A particular lensmaterial should be evaluated for susceptibility to stress

    cracking in specific chemical environments.

    All prescription lenses are required to be Safety by theFDA. This merely means heat-treated lens and does notmeet the ANSI Z87.1 requirements for industrial safetyeyewear.

    5.3. Materials and methods of test of protectors5.3.1. The materials used shall combine a high degree of mechanical strength

    with minimum weight. They shall be nonirritating to the skin, corrosionresistant, noncombustible or slow burning if made of plastic, and capable

    of withstanding sterilization. No nitrated stock shall be used.5.3.2. Some of the more important tests which eye and face protective devices

    must be capable of withstanding are listed below. It is the vendor'sresponsibility to see that his products meet all applicable requirements.

    5.3.2.1. Lenses (includes plastic shields)

    Revision 0June 2008 13

    Impact ball drop Heat and cold resistance

    Penetration (plastic only)needle drop

    Optical quality Polariscope(strain pattern)

    Flammability

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    5.3.2.2. Frames (includes headgear for shields andhelmets)

    Stability Flammability

    Heat and cold resistance Comfort

    Heat conductivity

    5.4. Maintenance of protectors5.4.1. Protectors shall be kept clean and in good repair (OSHA

    1910.133 and 1926.102). Suitable cleaning dispenser stations shouldbe located throughout the plant. Cleaning liquids and treated tissuecontaining antifogging chemicals are available. Plastic lenses should becleaned only with mild detergent and water.

    5.4.1.1.

    Plastic lenses should be provided with a scratch-resistantcoating.

    5.4.2. A centrally located fitting and repair shop should be maintained on largeplants. Small plants may find it more convenient to obtain the services ofan outside optician to fit spectacles, especially the corrective-protectivetype.

    5.4.3. Thin treated glass and plastic sheets are available at low cost for use overregular protective lenses and filter plates used in welding, cutting, andmolten-metal operations. They will protect the more expensive lensesfrom molten-metal damage.

    5.5. Selection and procurement5.5.1. Eye-protective devices should be of good quality and no attempt should

    be made to make questionable savings by purchasing items of unknownquality.

    5.5.2. Purchases should be made only from reputable suppliers whose productsmeet the requirements of ANSI Z87.1.

    5.5.3. All reputable manufacturers have detailed selection charts for theirproducts, and can furnish assistance in the proper selection of models.

    Revision 0June 2008 14

    5.5.4. Each face-shield, each lens, and each supporting frame shall bedistinctively marked in a manner by which the manufacturer may beidentified. In addition, all major components of eye and face protectorsshall bear a legible and permanent Z87 logo to indicate compliancewith ANSI Z87.1 excepting lenses and plates which shall be marked asspecified in ANSI Z87.1. Each filter lens shall be marked with shadenumber.

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    6. Management Systems6.1. Support Resources

    Site HSE, Site OHS, Centre for HSE Excellence and Corporate OHS are available toassist with implementation of this standard.

    6.2. Management RecordsRecords shall be retained in compliance with the Corporate Records andInformation Management Program.

    6.3. Audit RequirementsEye protection Standard must be covered in first-party and second-party HSEaudits to help ensure compliance with site, business, and corporate standardsand regulations.

    6.4. Standard renewal processThis standard shall be reviewed and revised as necessary and, at a minimum, notlater than five years from the date of the last revision.

    6.5. Deviation processDeviations from this standard must be authorized by the Location LineManagement Chief (Site Chief for Manufacturing Site) after consultation with theCentre for HSE Excellence (CHSEE) and non-objection from the company ApexHSE committee. Deviations must be documented, and documentation mustinclude the relevant facts supporting the deviation decision. Deviation

    authorization must be renewed periodically and no less frequently than everythree years.

    Emergency deviations must be authorized by the Location Line ManagementChief (Site Chief for Manufacturing Site)when, as a result of an unforeseen eventor situation, there is inadequate time to process a formal deviation. Emergencydeviations shall be authorized only where it is not feasible to comply with arequirement in this standard. Emergency deviations shall be short in duration,not to exceed the time to perform the task at hand. Centre for HSE Excellenceshall be consulted. The deviation must be documented.

    The documentation must include the relevant facts supporting the deviation

    decision and the interim measures to be put in place to achieve acceptable levelsof HSE protection. A copy of the deviation must be sent to Centre for HSEExcellence (CHSEE).

    Revision 0June 2008 15

    6.6. ContactThe contact for this document is the Centre for HSE Excellence.

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    Table 1: Filter lens shade numbers recommended for protection againstradiant energy

    Welding operation Shade No.

    Shielded metal-arc welding 1/16-, 3/32-, 1/8-, 5/32-inch diameterelectrodes

    10

    Gas-shielded arc welding (nonferrous) 1/16-, 3/32-, 1/8-, 5/32-inchdiameter electrodes

    11

    Gas-shielded arc welding (ferrous ) 1/16-, 3/32-, 1/8-, 5/32-inchdiameter electrodes

    12

    Shielded metal-arc welding 3/16-, 7/32-, 1/4-inch diameterelectrodes

    12

    5/16-, 3/8-inch diameter electrodes 14

    Atomic hydrogen welding 1014

    Carbon-arc welding 14

    Soldering 2

    Torch brazing 3 or 4

    Light cutting, up to 1 inch 3 or 4

    Medium cutting, 1 inch to 6 inches 4 or 5

    Heavy cutting, over 6 inches 5 or 6

    Gas welding (light), up to 1/8 inch 4 or 5

    Gas welding (medium), 1/8 inch to 1/2 inch 5 or 6

    Gas welding (heavy), over 1/2 6 or 8

    Revision 0June 2008 16

    * From ANSI Z87.1

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    Figure 1: Face and Eye protectors

    This Selection Chart offers general recommendations only. See text for detailed discussion.

    A GOGGLES, Flexible Fitting, perforatedventilation, for flying objects only

    G WELDING GOGGLES, Eyecup Type, Tinted Lenses

    B GOGGLES, Flexible Fitting, Hooded Ventilation,or splash protection

    H WELDING GOGGLES, Cover spec Type, TintedLenses

    C GOGGLES, Cushioned Fitting, for flying objects I WELDING GOGGLES, Cover spec Type, TintedPlate Lens

    D SPECTACLES, without Side shields J FACE SHIELD, Plastic or Mesh Window

    E SPECTACLES, Cup-Type Side shields K WELDING HELMET

    F SPECTACLES, Semi-/Flat-Fold Side shields

    Revision 0J 8

    A B C D E F

    G H I J K