8/12/2019 8521-2 (1)

1/12

Disclosure to Promote the Right To Information

Whereas the Parliament of India has set out to provide a practical regime of right to

information for citizens to secure access to information under the control of public authorities,in order to promote transparency and accountability in the working of every public authority,

and whereas the attached publication of the Bureau of Indian Standards is of particular interest

to the public, particularly disadvantaged communities and those engaged in the pursuit of

education and knowledge, the attached public safety standard is made available to promote the

timely dissemination of this information in an accurate manner to the public.

!"#$% '(%)

!"# $ %& #' (")* &" +#,-.Satyanarayan Gangaram Pitroda

Invent a New India Using Knowledge

/0)"1 &2 324 #' 5 *)6Jawaharlal Nehru

Step Out From the Old to the New

7"#1&"8+9&"), 7:1&"8+9&")Mazdoor Kisan Shakti Sangathan

The Right to Information, The Right to Live

!"# %& ;

8/12/2019 8521-2 (1)

2/12

8/12/2019 8521-2 (1)

3/12

8/12/2019 8521-2 (1)

4/12

I S 8521 (Part 2 ) : 1994mars JI-l=r

I ndian St andardINDUSTRTALSAFETYFACESHIELDS

SPECIFICATIONPART 2 WITH WIRE-MESH VISOR

UDC 614.893.6.61.4 : 838.442

0 BIS 1994

BUREAU OF INDIAN STANDARDSMANAK BHAVAN 9 BAHADUR SHAH ZAFAR MARGNEW DELHI 110002

February 1994 Price Group 3

( Reaffirmed 2002 )

8/12/2019 8521-2 (1)

5/12

Industrial Safety Sectional Committee, CHD 008

FOREWORDThis standard was adopted by the Bureau of Indian Standards, after the draft finalized by the IndustrialSafety Sectional Committee had been approved by the Chemical Division Council.IS 8521 ( Part 1 ) : 1977 Specification for industrial faceshield : Part I With plastic visor is meant foruse by industrial workers in tool working operations against chips and saw dust, in metal machiningoperation against flying particles, in buffing, polishing and grinding operation where particles maystrike the face, in spot welding and in handling of corrosive materials. The industrial safety faceshields( with wire mesh visor ) covered by this standard may be used to protect face against heat and glarefrom the furnaces and wherever heated material is handled.In the preparation of this standard, assistance has been taken from the ANSI Z-87.1-1984 Practice foroccupational and educational eye and face protection, published by the American National StandardsInstitute, USA.The composition of the committee responsible for formulation of this standard is given at Annex A.For the purpose of deciding whether a particular requirement of this standard is complied with, thefinal value, observed or calculated, expressing the result of a test or analysis, shall be rounded off inaccordance with IS 2 : 1960 Rules for rounding off numerical values ( revised . The number ofsignificant places retained in the rounded off value shall be the same as that of the specified value In thisstandard.

8/12/2019 8521-2 (1)

6/12

IS 8521 Part 2 ) : 1994

Indian StandardINDUSTRIAL SAFETY FACESHIELDS -SPECIFICATION

PART 2 WITH WIRE-MESH VISOR

1 SCOPEThis standard prescribes requirements for indus-trial faceshields with wire mesh visor used forprotection of the face against heat and glareduring furnace operations and operationsinvolving hot material, molten metal and slags,and their methods of test and sampling.2 REFERENCES2.1 The following Indian Standard is necessaryadjunct to this standard:

IS No. T i t le4905 : 1968 Method for random sampling3 CLASiGIFICATIONThe faceshields shall be of two types dependingupon the size of the visor as mentioned below:

Typ e 1 - Faceshields with visor size of230 mm in width and 230 mm inlength, and

Typ e 2 - Faceshields with visor size of305 mm in width and 230 mm inlength.4 MATERIALS4.1 Materials used in the manufacture of face-shields shall be non-magnetic, heat resistantand shall have mechanical strength and light-ness of weight. The materials shall also be non-irritating to the skin.4.2 The headgear of the faceshield shall befabricated of suitable heat resistant materials ofat least 1.4 mm thickness. Headgear shallconsist of a crown band of at least 25 mmwidth, an adjustable bead-band and sweatband.The adjustable devices shall be made of non-sparking heat resistant material capable ofwithstanding temperatures up to 150C withoutgetting deformed and shall have no sharpedges.4.3 Visor shall be manufactured in the form ofplain weave type wire mesh with stainless steelor other such non-magnetic materials. The

wire-mesh shall be made out of wire of 0.5 mmdiameter.5 REQIJ IREMENTS5.1 DesignThe faceshields shall be designed to provideprotection to the face ( that is, the front ofthe head including forehead, eyes, cheeks, nose,mouth and chin ) and neck, when required,from heat and glare during furnace operationsand handing of hot materials, molten metal andslags. Both Type 1 and Type 2 faceshields shallbe designed for comfort and shall be worndirectly on the users head.The faceshields of both the types shall consistessentially of a headgear including an adjustablehead-band and crown band, a durable tiltingvisor support with or without crown protector,metal wire-mesh visor and a removable andreplaceable sweatband. The faceshield shall besimilar to Fig. 1 and shall also comply with thetest requirements specified in 5.4.5.1.1 H eadgearThe design of the headgear shall be such as tohold the visor and visor support comfortablyand firmly in place on the wearers head, andshall have provision for tilting the visor awayfrom the face. Adjustable bands of the face-shield headgear shall be of the positive lockingtype of adequate range and adjustable at backand top with the help of ratchat or wing nutarrangement. The headgear shall be adjustablewithout the use of tools and shall hold firmly inplace after being so adjusted. The crown strapor band shall be attached to, and extendedbetween, the front and rear centres or from themiddle sides of the headband. lt shall form anarch over the head to assist in positioning andholding the headgear in place. All mechanismsand movements shall be protected so that thewearers hair cannot catch in the adjustingdevices. Not less than the forehead portion ofthe headband shall be provided with a remova-ble and replaceable cushioned sweatband thatshall be non-irritating and non-toxic.

1

8/12/2019 8521-2 (1)

7/12

iS 8521 Part 2 ) : 1994

FIG. 1 FACESHIELDSWITH WIRE-MESH VISOR51.2 Visor SupportThe faceshield visor support shall be furnishedwith or without a crown protector as agreedto between the purchaser and the supplier.Visor support shall be made of suitable heatresistant materials of at least l-4 mm thicknessand designed for easy removal or replacementof visor. Visor supports shall be provided withsnap fastener studs or a combination of snapfastener studs with other suitable holder studsfor attaching the visor in a secured manner.Studs shall be equidistantly spaced to providefor maximum interchangeability. Support shallbe attached to the headgear by friction jointswhich permit tilting of the visor either upwardto be clear of the horizontal vision line or down-ward to a position of maximum protection withclearance for the nose, and over eye-glasses or

goggles when used. The tension of the tiltingmechanism shall be sufficient to hold the visorin up or down position without slippage.5.1.3 VisorThe wiremesh visor shall be made of stainlesssteel wire and weaving area between the wiresshall be 1 mm2. Edges of wire-mesh of the visorshall be covered on all sides with soft aluminiumsheet of 10 mm width and minimum O-5 mmthickness. The upper side of the visor shah alsobe covered with soft aluminium sheet of mini-mum 0.5 mm thickness and 20 mm width. Thealuminium sheet shall be rivetted to the visorwith suitable material. Bottom corners andsharp edges shall be rounded off. The wire-meshvisor shall be similar to that shown in Fig. 2and shall also comply with the test requirementsgiven in 5.4.

FIG. 2 VISOR, WIRE-MESH2

8/12/2019 8521-2 (1)

8/12

5.1.4 weatbandsSweatbands shall be of non-toxic, non-irritating,cushioning material and shall be of removableand replaceable type. Sweatbands shall covernot less than the forehead portion of theheadband.5.2 WorkmanshipWorkmanship shall be such that all faceshieldsshall be free from any defects which mightaffect appearance, functionability, and service-ability.5.3 InterchangeabilityAll parts having the same manufacturers partnumber shall be directly and completely inter-changeable with respect to installation andperformance.5.4 Disinfection Test5.4.1 All faceshield materials shall be such asto withstand, without visible deterioration andcorrosion, washing in detergent and warmwater; rinsing to remove all traces of detergent;and disinfection by one or more of the followingmethods:

a) Immersion for IO minutes in a solutionof formalin made by mixing one part of40 percent formaldehyde solution with9 parts of water at room temperature( 27 f 2C );b) Subjection to a moist atmosphere offormaldehyde of 90 percent humidity fora period of 10 minutes at room tempera-

ture ( 27 f 2C ); andc) Immersion for 10 minutes in a solutionof modified phenolics, hypochlorite, orquaternary ammonium compounds instrength specified by the manufacturer atroom temperature ( 27 2C ).6 PACKING, MARKING ANDINSTRUCTIONS FOR USE6.1 Faceshields and accessories shall be packedin a manner which shall ensure safe delivery atdestination.6.2 The containers shall be marked with atleast the following information:

a) Identification of the source of manu-facture;

b) Name and type of faceshield;cl Special visors or accessories, if provided;d) Date of manufacture; ande> atch/Code number.

IS 8521 Part 2 ) : 1994

6.3 Instructions regarding the use of disin-fection and maintenance of the equipment shallbe provided by the manufacturers in an un-ambiguous manner along with each faceshield.7 SAMPLING7.1 LotAll faceshields of the same type, class, and sizemanufactured from the same material undersimilar conditions of production shall begrouped together to constitute a lot.7.2 Sample SizeThe number of faceshields to be selected fromeach lot shall depend upon the size of the lotand shall be in accordance with Table 1.

Table 1 Scale of SamplingLot Size Sample Size AcceptanceNumber

(1) (2) (3)up IO 100 20 1101 to 150 32 2151 to 300 50 3301 to 500 so 5501 to 1 000 125 7

1 001 to 3 000 200 103 001 and above 315 14

7.2.1 These faceshields in the sample shall beselected from the lot at random. For thispurpose reference may be made to IS 4905 :1968.7.3 Each of the faceshields selected in thesample shall be subjected to the test mentionedin the standard. A facesield failing to meetanyone or more of the requirements of thestandard shall be considered as defective. Thelot shall be considered as conforming to therequirements of this standard if number ofdefectives found in the sample is less than orequal to the corresponding acceptance numbergiven in column 3 of Table 1.

8/12/2019 8521-2 (1)

9/12

IS 8521 Part 2 ) : 1994ANNEX A( Foreword )

COMMITTEE COMPOSITIONComposition of Industrial Safety Sectional Committee, CHD 8

ChairnmSHRI K. C. GUPTAMembersSHRI PBEM BAWEJASEEI B. VIJAY KUIUAR Alternate 1SHI~I BRA~WATI PRASADSHRI SATISH CEANDER ( Aitcrnatc )DR S. C. CHAWLASHRI M. K. BANERJEE ltcrnata )HRI P. K. CHATTERJEESBRI H. S. KAPRAWAN ( Altsrnatc )DIEECTOR ( MINES SAFETYSHRI A. K. RUDRA Alternate )SERI H. S. GAHLAUTSHRI B. R. MEHTA ( Alternate )SHRI V. K. GOEL

SHRI M. L. AHUJA Alternate )SHRI S. P. GOENKASHRI N. DUTTA ( Alternate )SHRI M. KANTSHRI KI~LIT MARU ( Alternate )DR J. MAHAPATRASHRI M. K. MALHOTRASHRI H. N. MIRASEIDR H. MUKHERJEE

SHRI C. M. SHABXA ( Alternate )SHRI R. N. MUKHERJEESHLLIA. BANERJEE ( Alternate )SERI S. K. MUKHEKJISHRI A. K. GHOSH Alternate )SHRI P. S. PRUTHIS I SUIZESH KAPOOR ( Alternate )

S RI P. RAJEN~RANSHRI H. S. RAWAT ( Alternate )SHRI A. RAMAMURTHYSHRI K. RAVICHANDRASHRI M. SRIVASTVA Alternate )SHRI A. J. REQOSHRI A. K. CHATTERJEE ( Alternate )SHRI M. R. SAMPATHSHRI 0. N. DAG~ ( Alternate )

SHRI SURBNDRA KUMARSHRI R. PARTHASARTHY ( Alternate )REPRESENTATIVEREPRESENTATIVEREPRESENTATIVE

REPREBENTATIVEDR R. K. SINGH,Director Chemicals )

RefirascntingNational Safety Council, Bombay

Hindustan Aeronautics Limited, BangaloreEmployees State Insurance Corporation, CalcuttaDirectorate General of Technical Development, New DelhiDefence Institute of Fire Research, New DelhiDirectorate General of Mines Safety, DhanbadInstitute of Fire Engineers India ), New DelhiCentral Boiler Board, New DelhiMining, Geological and Metallurgical Institute of India, CalcuttaSafety Appliances Manufacturers Association, CalcuttaStanding Committee on Safety for Steel Industries, RanchiDirectorate General, Factory Advice Services and Labour Institute,BombayFactory Inspectorate, Government of Maharashtra, BombayChief Controller of Explosives, NagpurCentral Mining Research Station, DhanbadStanding Fire Advisory Council, New DelhiIndian Pesticide Association, New DelhiDirectorate General, Civil Aviation National Airport Authority ),

New DelhiBhabha Atomic Research Centre, BombayMinistry of Petroleum and Natural Gas Oil Industries SafetyDirectorate ), New DelhiNational Safety Council, BombayIndian Cotton Mills Federation, BombayIndian Chemical Manufacturers Association, CalcuttaCentral Leather Research Institute, MadrasConfederation of Indian Industries, New DelhiIndian Space Research Organization, Government of IndiaDepartment of Space ), Andhra PradeshNational Institute of Occupational Health, AhmedabadDirector General, BIS Ex- o Member j

Member-SecretarySHRI P. MUEHOPADHYAY

Joint Director Chemicals ) Continued on page 5 )

4

8/12/2019 8521-2 (1)

10/12

IS 8521 Part 2 ) : 1994

Composition of Personal Protective Equipment ( Non-Respirators )Subcommittee, CHD 08 : 02

ConuenerSmu M. K. MALHOTRA

RepresentingDirectorate General, Factory Advice Services and Labour Institute13ombay

M em hersSartr J . CLI AI

8/12/2019 8521-2 (1)

11/12

8/12/2019 8521-2 (1)

12/12

Bureau of Indian StandardsBIS is a statutory institution established under the Bureau of Zndian Slandardr Act, I986 to promoteharmonious development of the activities of standardization, marking and quality certification of goodsand attending to connected matters in the country.CopyrightBIS has the copyright of all its publications. No part of these publications may be reproduced in anyform without the prior permission in writing of BIS. This does not preclude the free use, in the courseof implementing the standard, of necessary details, such as symbols and sizes, type or gradedesignations. Enquiries relating to copyright be addressed to the Director ( Publications ), BIS.Review of Indian StandardsAmendments are issued to standards as the need arises on the basis of comments. Standards are alsoreviewed periodically; a standard along with amendments is reaffirmed when such review indicates thatno changes are needed; if the review indicates that changes are needed, it is taken up for revision.Users of Indian Standards should ascertain that they are in possession of the latest amendments oredition by referring to the latest issue of BIS Handbook and Standards Monthly Additions,This Indian Standard has been developed from Dot No. CHD 8 ( 68 ).

Amendments Issued Since PublicationAmend No.____._.-__.-.-. -- Date of Issue Text Affected

-.BUREAU OF INDIAN STANDARDS

Headquarters:Manak Bhavan, 9 Bahadur Shah Zafar Marg, New Delhi 110002Telephones : 331 01 31, 331 13 75Regional Offices :Central : Manak Bhavan, 9 Bahadur Shah Zafar Marg

NEW DELHI 110002Eastern : l/l4 C. I. T. Scheme VII M, V. I. P. Road, ManiktolaCALCUTTA 700054Northern : SC0 445-446, Sector 35-C, CHANDIGARH 160036

Telegrams : Manaksanstha( Common to all offices )Telephone

{331 01 31331 13 75

137 84 99, 37 85 6137 86 26, 37 86 62

I53 38 43, 53 16 4053 23 84

Southern : C. I. T. Campus, IV Cross Road, MADRAS 600113 235 02 16, 235 04 42235 15 19, 235 23 15

Western : Manakalaya, E9 MIDC, Marol, Andheri ( East )BOMBAY 400093 632 92 95, 632 78 58632 78 91, 632 78 92Branches : AHMADABAD. BANGALORE. BHOPAL. BHUBANESHWAR.

COIMBATORE. FARIDABAD. GHAZIABAD. GUWAHATI. HYDERABAD.JAIPUR. KANPUR. LUCKNOW. PATNA. THIRUVANANTHAPURAM.

Printed BL New India Printing Press, Khurja, India