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इंटरनेट मानक 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. “जान1 का अ+धकार, जी1 का अ+धकार” “प0रा1 को छोड न’ 5 तरफ” Mazdoor Kisan Shakti Sangathan Jawaharlal Nehru “The Right to Information, The Right to Live” “Step Out From the Old to the New” IS 3097 (2006): Veneered Particle Boards -Specification [CED 20: Wood and other Lignocellulosic products] “!ान $ एक न’ भारत का +नम-ण” Satyanarayan Gangaram Pitroda ““IInnvveenntt aa NNeeww IInnddiiaa UUssiinngg KKnnoowwlleeddggee”” “!ान एक ऐसा खजाना > जो कभी च0राया नहB जा सकता हहहहै””ै” Bhartṛhari—Nītiśatakam “Knowledge is such a treasure which cannot be stolen” IS 3097:2006 Indian Standard VENEERED PARTICLE BOARDS — SPECIFICATION (Second Revision) ICS 790.060.20 0 BIS 2006 BUREAU OF IND IAN STANDARDS MANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARC NEW DELHI 110002 Augt{st 2006 Price Group 4 .. .— .— —.. Wood and Other Lignocellulosic Products Sectional Committee, CED 20 FO~WORD This Indian Standard (Second Revision) wasadopted bythe Bureau of Indian Standards, after the draft finalized bytheWoodandOtherLignoceIlulosic Products SectionalCommittee hadbeenapproved bytheCivilEngineering Division Council. Veneered particle boards fmd extensive useinbuildings, furniture, automobile andbusbody construction, sports goods, packing cases, etc. Veneered particle boards areofseveral grades andtypes, faced with decorative typeor general purpose type veneers.particle boards withdecorative veneers are suitable for interior decoration and for making firniture. Wherever particb boards are exposed to high humidity, rains, etc, exterior grade boards will .besuitable. This standard was first published in 1965to provide guidance to the industry inthe development ofthis type of particle board. In the first revision, modifications were made in the requirements of different grades of the veneered particle boards. In this revision, the modifications found necessary in the present day context and incorporated inthestandard through various amendments issuedfromtime-to-time havebeenincluded. Inaddition the requirement for moisture content and the number of specimens to be tested for moisture content, water absorption, swelling inwater, modulus ofelasticity andmodulus ofrupture have been aligned withthat specified inIS3087, ‘Particle boards ofwood and other lignocelluloses material (medium density) for general purposes — Specification’. A scheme of labelling -environment friendly products to be known as ECO-Mark has been introduced at the instance of the Ministry of Environment and Forests (MoEF), Government of India. The ECO-Mark shall be administered bytheBureau ofIndian Standards (BIS) under theBISAct, 1986 asperthe Resolution No. 71dated 21FebruaW 1991and Resolution No. 425 dated 28October 1992published intheGazette ofthe Government of India. For this purpose, the Standard Mark of BIS would be a single mark being acombination ofthe 1S1Mark and the ECO logo. Requirements to be satisfied for a product to qualify for the BIS Standard Mark for eco friendliness will be optional. Manufacturing units will be free to opt for 1S1Mark alone also. The ECO-Mark criteria isbased ontheGazette Notification No. 170dated 18May 1996for Wood Substitutes as environment friendly products pub l ished inthe Gazette of the Government of India. In the fomlulation of this standard due weightage has been given to the need for international co-ordination among the standards and practices prevailing indifferent countries in additiQntorelating ittothe practices inthe field inthis country. For the purpose of deciding whether aparticular requirement of this standard is complied with, the final value, observed or calculated, expressing the result of a test or analysis, shall be rounded off in accordance with IS2:1960 ‘Rules for rounding off numerical values (revise~’. The number of significant places retained inthe rounded off value should be the same asthat ofthe specified value inthis standard. 1S3097:2006 Indian Standard VENEERED PARTICLE BOARDS — SPECIFICATION (Second Revision) 1 SCOPE Table 1 Designation of Veneered Particle Boards This standard covers the requirements such as grades andtypes, material, manufacture, dimensions andtests (Clause 4.2) for veneered particle boards. S1No. Grade Type Designation (1) (2) (3) (4) 2 References i) I Solidcore,generalpurpose SOGP-I The standards listed in Annex A contain provisions ii) I Solidcore,decorative SOD-1 which through reference in this text, constitute iii) [ Tubularcore,generalpurpose TU GP-I provisions ofthis standard. Atthetime ofpublication, iv) 1 Tubularmre, decorative TU D-1 theeditions indicated were valid, All standards are v) 11 Solidcore,generalpurpose SOGP-11 vi) II SOIidcon, decorative SOD-II subject to revision and parties to agreements based on \,ii) II Tubularmre, generalpurpose TU GP-11 this standard are encouraged to investigate the viii) II Tubularwre, decorative TUD-11 possibility of applying the most recent editions ofthe standards indicated inAnnex A. 5 MATERIAL 3 TERMINOLOGY 5.1 Particle Board For the purpose ofthis standard, the definitions given Particle boards used for core of veneered particle in“IS707 and IS3087 shall apply. board shall be conforming to 1S 3087. The flat pressed-three layer, multilayer and graded board 4 GRADES AND TYPES when used, shall be of FPT-I grade confotiing to 1S3087. For ECO-Mark the particle board used for 4.1 Veneered particle boards shall be of two grades, core of veneered particle board shall be of medium namely, Grade 1and Grade 11. density conforming to requirements of ECO-Mark 4.1.1 Each grade shall be of the following four specified in IS 3087. types: 5.2 Veneeers a) Type 1 - Veneered particle boards, solid core, general purpose — These areveneered Veneersused forcross-bands and faces shall beeither particle boards of solid core with faces of sawn or rotary cut or sliced and shall be sufficiently veneer of general purpose type. smooth to permit even spread of glue. b) Type2— Veneeredparticle boarh, solid core, 5.2.1 Species of .Timber for Veneers decorative — These are veneered particle boards withsolidcorebutfacedononesideor Timbers for face veneers of general purpose type onboth sideswithdecorative veneers. veneered particle boards and for cross-bands where c) vpe 3— Veneered particle boards, tubular usedinalltypesandgradesofveneered particleboards, core, general purpose — These areveneered shallbeofClass IorClass 11asgiven inAnnex B.For particle boards with tubular core and faced ECO-Mark, speciesoftimber asgiven inAnnexBfrom with veneer of general purpose type. sources other than natural forests such astimber from industrial and social forestry plantations, shade trees d) Type 4 — Veneered partic[e boards, tubular from tea and coffee estates, etc, shall beused. core, decorative — These are veneered particle boards with tubular core faced with 5.2.1.1 Timbers for face veneers of decorative type decorative veneers on one or both sides. veneered particle boards, shallbeasspecified forface veneers in 1S 1328. For ECO-Mark, timber for face 4.2 Designation veneers of decorative type veneered particle boards Thegrades andtypes ofveneered particle boards shall shall conform to the requirements of ECO-Mark bedesignated asgiven inTable 1. specified inIS 1328. 1 IS 3097:2006 5.2.2 Face Veneer veneers may have end-grain joints incases of special matching like centre-matching, V-matching, etc. Face and cross-band veneers of general purpose type veneered particle boards, shall beofTypeAorType B 6.2.3 Cross-bands, where used, shall be laid insucha surface as specified in 1S 303. Face veneers of manner that there are no gaps exceeding 0.8 mm and decorative type veneered particle boards shall beef no overlaps. The cross-bands shall be free from dry qualities suitable for Type 1of veneered decorative rot and dead knots. plywood covered in IS 1328. 6.2.4 The veneers used shall have moisture content 5.3 Adhesive not exceeding 14 percent and the veneered particle board afier pressing shallbe conditioned toamoisture The adhesives used for bonding veneer shall be BWP content of not less than 5 percent and not more than or BWR type conforming to IS 848 for Grade 1 15percent. veneered particle board and MR type confirming to 1S848 for Grade 11veneered particle board. 6.2.5 The face veneers in case of veneered particle boards of the extrusion press type shall have their 6 MANUFACTURE grain direction parallel to the direction of extrusion, that is, at right angles to the bulk orientation of the 6.1 Preservative Treatment of Veneers grains oftheparticles except incaseof5-ply veneered Veneers oftimber marked with anasterisk inAnnexB particle boards, in which case there need not be any and sapwood of all other timbers, when used for distinction in this respect. In case of 5-ply veneered veneers, shall be given apreservative treatment atthe particle boards, the face veneers shall be made with veneer stage as specified in7.1.1 of IS 303. Trimmed itsgrain direction atright angles tothegrain direction and cut ends of the finished veneered particle board of the cross-bands. [n all cases, the grains on both shall be given a protective treatment by coating with thefaces ofthe assembled board shall runinthe same any of the following preservatives: direction. a) Sodiumpentachlorophenate ortrichlorophenol 6.2.6 Veneered particle boards shall be made either to a retention level of 6 kg/m3 or 8 kg/m3 by glueing particle boards between the veneer or respectively; alternatively, between two sheets ofplywood, butthe b) 10percent solution of copper nephthenate in total thickness of the skin of either side shall not mineral spirit; or exceed 5 mm. The thickness ofthe two skins shall be c) Shellac in spirit or phenol formaldehyde. equal and uniform ifthe same species isused and no other provision is made for balanced construction. The purchaser may, however specify his own method The adhesive used for either glueing the skin or of treatment. glueing the plywood shall conform to 5.3 for the 6.1.1 Particle boards used as core sha[l be treated as various grades. and when required. 6.2.7 Lipping 6.2 Cross-Band and Veneer Lipping shall be provided if so specified by the The construction shall be well-balanced around the purchaser. Lipping where provided, shall be internal central line. When only one side is provided with when it shall have a total depth not less than 22 mm decorative face,theback faceshallbesodesigned with and have a thickness same as the thickness of the material andthickness astobalance thestress likelyto particle board core and shall be made out of well- be developed inthe face veneers. seasoned timber battens of species as specified in IS 1659. The lipping may also be, if so agreed to by 6.2.1 Cross-band, where used, shall neither be less thepurchaser, ofsuitable veneer glued ontotheedges than 1.0m nor more than 3.0 mm inthickness. Face by use of a suitable adhesive. veneers shall be between 0.5 mm and 1.6 mm in thickness for commercial veneers and 0.5 mm to 6.3 Finish 1.0 mm in thickness for decorative veneers. The Allveneered particle boards shall beflat andsquarely veneersshallbeofuniform thickness withinatolerance cut. of+ 5percent. 6.3.1 Both faces of veneered particle boards shall be 6.2.2 The decorative veneers shallbespliced ortaped sanded to a smooth even surface. attheedges. Thejoining ofveneers shallbe suchasto develop a decorative match to obtain the required 6,3.2 The veneered particle boards shall be uniform match in figure on the spliced or taped veneers. The inthicknesswithinthetolerance limitsspecified in7.4. L IS 3097:2006 7 DIMENSIONS AND TO~RANCES selected fromalotfortesEsshallbeinaccordance with Table 2. 7.1 The dimensions of veneered particle boards shall be quoted inthe following order: Table 2 Number of Vkneered Particle Boards The first dimensions shall represent the length, to be Selected for Sampling Ehatis, the dimensions parallel to the grain of the faces, second the width and the third the SI Lot Size Number ofSample Boards Ehickness. No. N tobeSelected n 7.2 Thethickness ofveneered parEicleboards shallbe (1) (2) (3) the following: i) up to100 2 6, 10, 12,20,25, 30, 35, 40,45 and 50mm. ii) 101to300 3 iii) 301 to500 5 7.3 The dimensions of veneered particle boards shall iv) 50i andabove 8 be as follows: a) Length, inmm—4800, 3650,3000,2700, 8.1.2.1 Theveneered particle boards shallbeselected 2400,2100, 1800, 1500, 1200, 1000 and atrandom. Inorder toensure randomness ofselection, 900, and all Eheveneered particle boards in the lot may be arranged inaserialorder andstartingwithanyveneered b) Width, inmm— 1800, 1500, 1200, 1000, particle board every rth veneered particle board may 900 and 450. beselectedEilltherequired number isobtained, rbeing NOTE—Any other dimension (length, width and the integral part of N/n where Nisthe lot sizeand n is thickness)asagreedtobetweenthemanufacturerand the sample size. Alternatively, for taking the sample thepurchasermayalsobeused. boards at random, use may be made of the random 7.4 Dimensional Tolerance number tables given inIS4905. The following tolerances on dimensions of finished 9 TESTS AND ACCEPTING CRITERIA boards shall be permissible: 9.1 Test Specimen sl Dimension Tolerance Before cutting the tesEspecimens, the length, width, No. thickness and the squareness of the veneered particle i) Length +6 -o‘m boards selected asin8.1.2 shallbemeasured according toIS2380 (Part 2). The straightness oftheedgesshall ii) Width :: ‘m also be measured in accordance with the procedure mentioned in Annex C. These shall conform to the iii) Thickness +5percent dimensions andtolerances specified in7.2to7.4.From iv) Edge straightness 2mm per 1000 mmor each of the particle boards selected, specimens shall 0.2 percent be cut for the following tests from portions 150mm v) Squareness 2mm per 1000 mm or away from the edges. The method of preparation and 0.2 percent conditioningoftest specimensshallbeasspecifiedinIS NOTE — Edgestraightnessandsquarenessshallbetestedas 2380 (Part 1). per AnnexC. a) Determination of densit~~ — Three Eest 8 SAMPLING specimens from each sample conforming to dimensionsspecified in2.1ofIS2380(Part 3) 8.1 Scale of Sampling shall be taken and tested in accordance with 8.1.1 Lot the procedure mentioned therein. Inanyconsignment, alltheveneered particle boards of The density of each specimen shall not the same grade, Eypeand dimensions, manufactured vary from the mean density by more than undersimilarconditions ofproduction shallbegrouped +10percent. together to constitute a lot. b) Determination of moisture content — Three test specimens from each sample conforming 8.1.1.1 The conformity of a lot, to the requirements to dimensions specified in 2.1 of 1S2380 of this standard, shall be ascertained on the basis of (Part 3) shall be taken and tested in tests onveneered particle boards selected from it. accordance with the procedure mentioned 8.1.2 The number of veneered particle boards to be therein. 3 IS3097:2006 The average value of the moisture content g) Modulus of rupture (MOR) and modulus of shall be between5to 15percent. elastici~ (MOE) — Three test specimens c) Water absorption — Three test specimens from each sample conforming to the from each sample conforming to dimensions dimensions as specified in IS 2380 (Part 4) specified in2.1 of IS 2380 (Part 16)shall be shall be taken. Modulus of rupture and taken and tested in accordance with the modulus of elasticity shall be determined procedure mentioned therein. for each test specimen in accordance with the methods prescribed in 1S2380 (Part 4). Thevalueofwaterabsorption shallnotexceed The average and minimum individual 25percent for2 hsoaking and 50percent for values of MOE for both grades of particle 24 h soaking. board, shall not be less than 2500 N/mm’ d), Water resistance test — Three testspecimens and2200 N/mm*,respectively. The average of dimension 250 mm x 100 mm from each and minimum individual values of MOR for sample shall be taken and subjected to this both grades of particle boards shall not test. Grade I particle boards shall not show be less than 30 N/mm’ and 27 N/mm2, signs of disintegration and/or shall not respectively. delaminate afier 3h-boiling in water. Grade h] Determination of deflection under sustained 11particle boards shall not disintegrate and/ load (long time loading test) — I~so required or shall not delaminate after 3h immersion by the purchaser, one test specimen from-each inwater at60 + 2°C. sample having length inthe direction of the NOTE — Minor checks and cracks in the veneered grain of face ply and conforming to the particleboardcoremaydevelopbecauseofdifferential dimensions specified in 2.1 of IS 2380 stressinthecoreorveneers.Thisshallnotbeconsidered (Part 13) shall be taken and tested in asdisintegration. accordance with the procedure mentioned e) Determination of swelling in water therein. 1) Swelling due to general absorption — The deflection after 24 h under load and the Three test specimens from each sample, residual deflection 24 h after the removal of conforming to dimensions as specified load shall be as agreed to between the in2.1 of IS2380 (Part 17)shallbetaken purchaser and the supplier. and tested in accordance with the procedures mentioned therein. Swelling 9.2 The lot shall be considered to conform to a in thickness in percentage of original requirement of this standard, if all the sample boards thickness for 2 h immersion shall be have been found satisfactory in respect of that determined and the same shall not be requirement. more than 7percent, 2) .Swelling due to sur face absorption — 10 ADDITIONAL REQUIREMENTS FO.R ECO- Three test specimens from each sample MARK conforming to dimension as specified 10.1 General Requirements in2.1 of IS2380 (Part 17)shallbetaken and tested in accordance with the The veneered particle board shall conform to the procedure laiddowntherein.Theswelling requirements ofquality andperformances specified in inthickness due to surface absorption in this standard. 2hshallnot be more than 5percent. 10.1.1 The manufacturer shall produce to BIS O Adhesion ofplies — Three test specimens of environmental consent clearance from the concerned 200 mm x 100 mmshallbetakenfortest.The State Pollution Control Board as per the provisions adhesion of the face veneers to the particle of the Water (Prevention and Control of Pollution) board core and the cross-bands and other Act, 1974 and Air (Prevention and Control of veneers, where these exist, shall be suchthat Pollution) Act, 1981 and Water (Prevention and whentested byforceful opening with aknife, Control of Pollution) Cess Act, 1977 alongwith the these shall &er appreciable resistance and authorization, if required under the Environment theexposed surfaceofveneer shallshowsigns (Protection) Act, 1986,while applying forECO-Mark of some adherent fibres distributed more or appropriate with enforced Rules and Regulations of less uniformly. Forests Department. The knife test isan empirical test and isonly 10.2 Specific Requirement indicative and itshould, therefore, be carried out with utmost care. The veneered particle boards shall conform to the 4 IS 3097:2006 specific requirements given for ECO-Mark under d) The criteria for which the particle board has relevant clauses ofthe standard. been labelled as ECO-Mark. NOTE —Themanufactureshallprovidedocumentaryevidence 11.2 BIS Certification Marking by way of certificate or declaration to Bureau of Indian Standardswhile applyingforECO-Mark, Each particle board may also be marked with the Standard Mark. 11 MARKING 11.2.1 The use of the Standard Mark isgoverned by 11.1 Eachveneered particle board shallbelegiblyand indeliblymarked onanyofitsedgeswiththefollowing: the provisions ofthe Bureau oflndian Standards Act, 1986andthe Rules and Regulations made thereunder. a) Name of the manufacturer or trade-mark, if Thedetails ofconditions under whichaIicenceforthe any; use of the Standard Mark may be granted to b) Grade and type of veneered particle board; manufacturers or producers may be obtained from the c) Thickness; and Bureau of Indian Standards. ANNEX A (Clause 2) LIST OF REFERRED INDIAN STANDARDS IS No. Title ISNo. Title 303:1989 Specification for plywood for (Part 2): 1977 ACCUFaCYOf dimensions of boards general purposes (third revision) ~rst revision) 707:1976 Glossary of terms applicable -to (Part 4): 1977 Determination of static bending timber technology and utilization strength @rst revision) (second revision) (Part 13): 1977 Long time loading bending test 848:2006 Specification for synthetic resin ~rst revision) adhesives for plywood (phenolic andaminop!astic) (second revision) (Part 16):1977 Determination of water absorption 1328:1996 Veneered decorative plywood — @rst revision) Specification (third revision) (Part 17): 1977 Determination ofswelling inwater 1659:2004 Block boards — Specification @rst revision) ~ourth revision) 3087:2005 Particle boards of wood and other 2380 Methods of test for wood particle lignocellulosic materials (medium boards and boards from other density) for general purposes — Iignocellulosic materials: Specification (second revision) (Part 1): 1977 Preparation andconditioning oftest 4905:1968 Methods for random sampling specimens @rst revision)