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IS10 (Part1 ):1990
PLYWOOD TEA-CHESTS - SPECIFICATION ’
( Fifth Revision) ’
UDC 621’788’1i3 [ 674 - 419’32 : 663’95 3
,I.’
Q BIS 1991
MANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG .
NEW DELHI llG002
__dWmmy 199 1
Timber Stores Sectional Committee, CED 33
This Indian Standard ( Part 1 ) ( Fifth Revision ) was adopred by the Bureau of Indian Standards
on 23 March 1990, after the draft finalized by the Timber Stores Sectional Committee had been
IS 10 : 1970 covered provisions relating to different components of plywood tea-chest. In its
fourth revision it was published in the following five parts:
10 ( Part 1 ) : 1976 Specification for plywood tea-chests: Part 1 General (fourth revision >
10 ( Part 2 ) : 1976 Specification for plywood tea-chests: Part 2 Plywood (fourth revision )
10 (Part 3) : 1974 Specification for plywood tea-chest: Part 3 Battens (fourth revision )
10 ( Part 4 > : 1976 Specification for plywood tea-chest: Part 4 Metal fittings (fourth revision )
10 ( Part 5 ) : 1976 Specification for plywood tea-chest: Part 5 Assembly and packing (fourth
In this fifth revision of Part 1 Amendments No. 1 to 3 are incorporated and the standard is updated
as a result of the experience gained by its implementation by tea-chest industry and the testing
laboratories. The methods of tests for end compression test and drop test and their reporting
have been elaborately revised with reference to the methods given for the testing of transport
packages in IS 7028 (Part 4 ) : 1987 ‘Performance test for complete, filled transport packages : Part 4
Vertical impact drop test (first telision )’ and IS 7028 ( Part 6 ) : 1973 ‘Performance test for complete
filled transport packages: Part 6 Compression test’ respectively which are based on IS0 standards.
In the formulation of this standard due weightage has been given to international coordination
among the standards and practices prevailing in different countries in addition to relating it to the
practices in the field in this country.
For the purpose of deciding whether a particular 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 IS 2 : 1960 ‘Rules for rounding off numerical values ( revised )‘. The number
of significant places retained in the rounded off value should be the same as that of the specified
value in this standard.
IS 10 ( Part 1) : 1990
PLYWOODTEA-CHESTS- SPECIFICATION
( FiJth Revision ) . l
’ 1 SCOPE Sl Characteristic Requirement Method of rest
1.1 This Indian Standard ( Part 1 ) covers mste- iii) Water vapour 5 g/m*/24 h 14 of IS 1060
rials, standard sizes, design, tare and tests for permeability at - ( Part 2 ) : 1960
plywood tea-chests. 38 + 1°C and
2 REFERENCES 90 * 2 percent
RH, Max
2.1 The standards listed in Annex A are neces-
sary adjuncts to this standard. iv) Water absorp- 1 percent A weighed sample
tion 24 h, Max shall be immersed
3 TERMINOLOGY in distilled water
at 27 & 1°C for a
3.1 For the purpose of this standard, the defini- period of 24 h
tions given in IS 707 : 1976 shall apply. and the same
4 MATERIAL shall be reweighed
4.1 Battens surface water.
Battens shall conform to IS 10 ( Part 3 ) : 1974. From the weight
gain so obtained,
4.2 Plywood percentage water
;;syod panels shall conform to IS 10 ( Part 2 ) : absorption shall
v) Toxicity Non-toxic Toxicity shall be
4.3 Fittings tested by prepa-
h%;;1 fittings shall conform to IS 10 ( Part 4 > : ration of film
extracts and sys-
temic administra-
4.4 Batten Covers tion to laboratory
Tissue paper shall be used as cover for battens animals and im-
in the assembled tea-chest. plantation of
polyester film in
4.5 Linings the muscles of
rabbits. No mor-
Any of the following lining materials may be tality or any other
used: signs of toxicity
a) Aluminium foil of 0’020 f 0 002 mm shall be observed.
interlined with tissue paper; vi) Thermal stabi- Unaffected The film shall be
lity range and stable exposed to the
b) Aluminium foil of 0 009 f 0’001 mm on storage temperature as
laminated with 20 to 30 g/m% paper at 130°C stated for a peri-
conforming to IS 8970 : 1978; od of 6 weeks and
c) Cellulose film of 0’022 mm f 10 percent subjected to tests
conforming to grade 300 coated with poly- stated under 4(C)
vinylidene chloride ( PVDC ) or nitrocel- and 4(D). There
lulose lacquer of IS 5012 : 1987. shall be no vari-
ation in the pro-
d) Metallized polyester film of minimum perty of the film.
thickness 12 micron (0’012 mm ) and con- 4.6 Nails
forming to the following requirements:
Nails used for corner, top and bottom of tea-
Sl Characteristic Requirement Method of Test chest shall be slat nails (see IS 723 : 1972 ).
5 DESIGN OF TEA-CHEST
i) Tensile stren- 2 060 N/m 12.3 of IS 1060
gth, Min ( Part 1 ) : 1966 5.1 The tea-chest shall be assembled as indicated
in Fig. 1 from six panels of plywood forming a
ii) Puncture stren- 1’42 N.m 9 of IS 4006 shook and 12 battens together with other acces-
gth, Min ( Part 2 ) : 1985 sories specified in Table 1.
more than the maximum prescribed for it in SI
No. ( iv ) of Table 1.
7.1.1 The mass of shcoks if stipulated in the
purchase agreement shall not vary from the
agreed mass by more than & 3 percent.
7.2 CerCificate of Tare
The supplier shall state in the despatch document
( challan ) for each consignment the tare of the
tea-chests.
7.2.1 The mass of tea-chest shall not vary by more
than f10 percent of the mass as stated in the
certificate of tare and shall not exceed the maxi-
mum specified in Table 1.
7.2.2 The supplier shall also indicate in the
despatch document ( challan ) for each consign-
ment the species of timber used for plywood and
battens separately and the size of tea-chests.
8 TYPE APPROVAL TESTS FOR
TEA-CHESTS
8.1 End Compression Test
8.1.1 Five tea-chests of the size 480 mm X
FIG. 1 TEA-CHEST 480 mm x 600 mm assembled in accordance with
Part 5 of this standard shall be fully packed with
6 SIZES dry saw dust weighing 50 kg. The tea-chests shall
6.1 Tea-chests shall be of any of the following be conditioned at a temperature of 3’7 f 2°C
sizes the dimensions as given may be the outside and RH 65 & 5% for 48 hours. The filled tea-
dimensions of tea-chest: chests shall be subjected to end compression test
in vertical position, as per IS : 7028 ( Part 6 ) :
1973. The maximum compression load under
L W H which the tea-chest starts bulging and permanent
mm mm mm depression appears on the sides shall be recorded
400 500 600 for each tea-chests. The average of the com-
480 480 600 pression loads at which the tea-chests fail shall
be not less than 50 kN. Corresponding figures
for other sizes shall be subjected to agreement
460 460 500 between the purchaser and the supplier.
8.1.2 Alternative Test
The five tea-chests assembled in accordance with
400 400 450 Part 5 of this standard, shall be filled with the
6.1.1 Any other sizes as agreed to between the saw dust and conditioned to the conditions as
manufacturer and the purchaser shall be permit- given in 8.1.1 when subjected to a constant
ted provided the dimensions do not exceed the compression load of 20 kN and maintained un-
maximum as specified in 6.1: der the same condition for a duration of 3 hours
NOI’E - For export of tea-chest shooks only, tea- shall show no visible sign of deterioration.
chests with the following dimensions may be per- Corresponding figures for other sizes shall be
mitted: subjected to agreement between the purchaser
a) 490 mm x 490 mm x 610 mm, and the supplier.
b) 410 mm x 510 mm x 610 mm, and
c) 410 mm x 410 mm x 610 mm. 8.2 Corner Drop Test
6.1.2 For packing instant tea, the following size 8.2.1 Five tea-chests assembled and conditioned
of tea-chest may also be permitted in addition to as described in 8.1.1 shall be tested for end drop
the sizes mentioned under 6.1: test as per method given in IS : 7028 ( Part 4 ) :
1987. Each tea-chest shall be dropped on each
380 mm X 685 mm x 845 mm corner from progressively increasing heights
6.1.2.1 The tea-chest of size mentioned in 6.1.2, until a height of 1 000 mm is reached. The star-
used for packing instant tea, shall conform to ting height shall be 150 mm with an increment
the provisions laid down iu Table 1. of 150 mm up to 900 mm and the final increment
7 TARE of 100 mm. The tea-chests at the end of each
drop shall be examined for any failure. The
7.1 Maximum Permirsible Mass of Empty tea-chests shall be deemed to have completely
Tea-Chest failed when:
The mass of tea-chest when empty shall be not a) the contents begin to spill freely, or
-“l .{.., -. - .-
IS 10( Part 1 ) :1990
Table 1 Accessories of Tea-Chest
( Clause 5.1,6.1.2.1 arrd7.1 )
S1 Parts Location Tea-Chest, mm
No. ——— ——— —___ ——A—.— ———_____ ——— —————_______ ~
700 X500 X6G0 480x480x6@ 480x@ox56il 460X464X500 4oox4rX3 x15&r 4W X400X509 4Gox400rr 450 380 X 635 X 845
(1) (2) (3) (4) (5) (6) (7) (8) (9) (lo) (11)
‘i) Batten Comers, 4 pieces 5$0 mm x 100 mm 4 pieces 550 mm x 100 mm 4 pieces 510 mm x 100 mm 4 pieces 450 mm x 100 mm 4 pieces 550 mm x 100 mm 4 pieces 450’mm x lCSImm 4 pieces 400 mm x 100 mm Not applicable. Instant tea
covers T and B 4 pieces 480 mm x 100 mm 8 pieces 460 mm x lIXImm 8 pieces 460 mm x 10iI mm 8 pieces 440 mm x 100 mm 8 pieces 380 mm x 100 mm 8 pieces 380 mm x 100 mm 8 pieces 380 mm x 10Qmm shall be packed in pCIIy.
( tissue 4 pieces 380 mm x 100 mm ethylene inner liners (ba8s)
Pper )
ii) ●Linings Sides, 2 sheets 630 mm x 495 mm 4 sheets 630 mm x 475 mm 4 sheets 460 mm x 100 mm 4 sheets 530 mm x 455 mm 4 sheets 630 mm x 395 mm 4 sheets 530 mm x 395 mm 4 sheets 480 mm x 395 mm
T and B 2 sheets 630 mm x 395 mm 2 sheets 475 mm x 475 mm 2 sheets 475 mm x 475 mm 2 sheets 455 mm x 455 mm 2 sheets 395 mm x 395 mm 2 sheets 395 mm x 395 mm 2 sbects 395 mm x 395 mm
2 sheets 395 mm x 495 mm
iii) Slating Comer, 216 pieces 25 mm x 2 mm 232 pieces 25 mm x 2 mm 208 pieces 25 mm x z mm 184 pieces 25 mm x 2 mm 216 pieces 25 mm x 2 mm 184 pieces 25 mm x 2 mm 184 pieces 25 mm x 2 mm 192 pieces per tea-chest
nails T and B distributed as followx distributed as follows: , distributed as follows: distributed as follows: distributed as follows: distributed as follows: distributed as follows: distribut cd as follows:
72 for 4 comer metals 88 for 4 corner metals 64 for 4 corner metals 64 for 4 cornm metals 88 for 4 corner metals 64 for 4 corner metals 64 for 4 corner metals 16 for corner of
112 for 8 top and 112 for 8 top and l12for8topand % for 8 top and 96 for 6 top and bottom 96 for 8 top and bottom % for 8 top and bottom 38 mm x 2 mm size
bottom metals bottom metals bottom metafs bnttom metals metafa meials metals
24 for fixins 8 top and 24 for fixins 8 top and 24 for fixing 8 top and 16 for fixins 8 top and 8 for 2 top and bottom 8 for 2 top and bottom 8 for 2 top and bottom 176 of 25 mm x 2 mm
bottom battens to shoots bottom battens to shooks botton battens t o sbooks bottom bsttens to abonks ~hooks nbooks shooks size
8 for 2 top and bottom 8 for 2 top and bottom 8 for 2 top and bottom 8 for 2 top and bottom 24 for 15x@ 8 top snd 16 for tixing 8 top and 16 for fixing 8 top and
shooks ahooka sbooka Sbnoks bottom battens to bottom battens to bottom battens to
sbooks ahooks shooks
iv) Maximum — 9ks 9 k8 9 kg 75 kg 6ks 6kg 6 kg 10 kg
permiasiile
mass of T = TOP
empty a- B = Bottom
●When tea-chest of an y size mentioned underCO14 tO lfJ are used fOr PSC~M Of in stint t@ prOvi~ons rela~s tO 3i~8 s~l notbe applicable.I~snt ta shall however, be packed in Pob’ethylene irmer linera ( bags ).
b) one edge breaks open along its entire c) Loosening or bending or breaking of any nails,
cl) Delamination of plies, and
e) Other failures.
Corresponding figures for other sizes shall be
subjected to agreement between the purchaser 8.3 Report
and the supplier. The results of tests on the tea-chests shall be
8.2.2 Alternative Test reported as outlined in Annex B.
Tea-chests, filled as described in 8.1.2 shall be 9 MARKING
dropped successively on each corner from a
constant height of 600 mm and repeated three 9.1 Unless otherwise speCified, each tea-chest
times from the same height. There shall be .no shall be legibly and idelibly marked with the
visible signs of deterioration. Corresponding following information:
figures for other sizes shall be subject to agree- a) Indication of the source of manufacture,
ment between the purchaser and the supplier.
b) Year of manufacture, and
NOTE -The following are some of the typical
visible signs of deterioration at the end of the above c) Size ( see 6.1 ).
a) Appearance of bulging and depressions on sides, 9.1.1 Each packaging case may also be marked
b) Wrinkling of metal bindings on edges, with the Standard Mark.
Title IS No. Title
Plywood tea-chests: Part 2 1060 ( Part 4 ) : 1966 Method of sampling and
IO ( Part 2 ) : 1976 test for paper and allied
Plywood (fourth revision )
products: Part 4 ( revised )
10 ( Part 3 ) : 1974 Plywood tea-chests: Part 3 4006 ( Part 2 ) : 1985 Methods of test for paper
Battens (fourth revision > and pulp based packaging
10 ( Part 4 ) : 1990 Plvwood tea-chests: Part 4 materials: Part 2 (first
Metal fittings (fifth revision )
revision ) 5012 : 1987 Cellulose film (first revi-
Plywood tea-chests: Part 5 sion )
10 ( Part 5 ) : 1976
Assembly and packing 7028 ( Part 4 ) : 1987 Performafi;cle&ests for com-
(fourth revision ) plete, transport
packages: Part 4 Vertical
707 : 1976 Glossary of terms applica- impact drop test (first W-
ble to timber technology vision )
and utilization ( second
revision > 7028 ( Part 6 ) : 1973 Performance tests for com-
plete, filled transport pack-
723 : 1972 Steel counter sunk head ages: Part 6 Compression
wire nails ( second revision) test
1060 ( Part 2 ) : 1960 Method of sampling and 8970 : 1978 Paper alominium foil lamid
test for paper and allied nates for packaging of foo-
products: Part 2 and pharmaceuticals
( Clause 8.3 )
PROFORMA OF REPORT FOR TESTS ON TEA-CHESTS
I. Name and address of maker or fabricator ,..... 3. Size of tea-chest . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . *. . . .. . . . . . . . . . . . . . . . . . . . . . . 1..
4. Thickness of plywood in mm:
2. Species employed for:
a) Nominal . . . . . . . . . . . . . . . . . . . . . . . . , . . . . . . . . .. . . . . . . . .
a) Outer faces. . . . . . . . . . . . . . .
b) Actual average... . . . . . . . . . . . . . . . . . . . . I . . . . . . . . . . .
b) Other veneers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
c) Battens..... . . . ..*.,..... * ,................ *. . . . . . 5. No. of veneers in plywood . . . . . . . . . . . . . . . . . . . . . . . .
IS 10 ( Part 1 ) :1990
6. Tare: 8. Report on the scheme of nailing and metal
a) Actual average mass of empty tea-chest in fittings according to Table I....... ,....................
kg ...................................................... 9. General remarks on compliance with the
b) Quoted mass of empty tea-chest in kg...... specification . . . . . . . . . . . . . . . . . .
. . . . . , . . . . . . .. . .. . . . . .. . . . . . . . .. . . . . . . . .. . . . . . . . . . . . . . ..
10. Certified that:
7. Results of test:
Tea-chests conform to IS 10 ( Part 4 ) : 1990
a) See 8.1.1 and 8.2.1. ‘Specification for plywood tea-chests: Part 1
End-Compression Progressive Corner Drop General (jfth revision )’ in all respects.
Chest No. Maximum Chest No. Maximum OR
Load, kN Drop, cm Tea-chests fail to conform to IS 10 ( Part 1 ) :
1990 ‘Specification for plywood tea-chests:
1 6 Part 1 General (fifth revision )’ for the
7 reasons given in 9 above.
: 10 Signature of Testing Officer... . . . . . . . . .
Average Average Designation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
b) Alternate method ( see 8.1.2 and 8.2.2 ): Name of Testing Laboratory... . . .. . . . .
Failures End Compression Corner Drop
2. r____-_-h_-__-_-~ ~-~~~~~~h~~~~___~
C’ost Chest Chest Chest Chest Chest Chest Chest Chest Chest
i) Appearance of
ii) Wrinkling of
iii) Loosening or
iv) Delamination
v) Tearing of
vi) Crushing of
vii) Splitting
breaking zi
viii) Any other
BIS is a statutory institution established under the Bureau QfIndiart Stardards Act, 2935 to promote
harmonious development of the activities of standnrdiz?tion, marking and quality certification of
BIS has the copyright of all its publications. No pzrt of these publications mly be reproduced in
any form without the prior permission in writing of BIS. This does not preclud: the free use, in
the course of implementing the standard, of necessary details, such as symbols and sizes, typ: or
grade designations. Enquiries relating to copyright be addressed to the Director ( Publication ), BIS.
Indian Standards are reviewed periodically and revised, when necessary and amendments, if any,
are issi.&$ from time to time. Users of Indian Standards should ascertain that they are in
posse.&& of the latest amendments or edition. Commznts on this Indian Standard may be sent
to BIS giving the following reference :
Dot : No. CED 33 ( 834 )
Manak Bhavan, 9 Bahadur Shah Zafar Marg, New Delhi l100C2
Telephones : 331 01 31, 311 I3 75 Telegrams : Manaksanstha
( Common to all Ofices )
Eastern : l/l4 C.I.T. Scheme VII M, V.I.P. Road, Maniktola
CALCUTTA 700054 37 86 62
Northern : SC0 445-446, Sector 35-C, CHANDIGARH 160036 2 18 43
Southern : C.I.T. Campus, IV Cross Road, MADRAS 600113 41 29 16
BOMBAY 400093 6 32 92 95
Branches : AHMADABAD. BANGALO RE. BHOPAL. BHUBANESHWAR.
Printed at Swdtdntra Bharat Press, Uelhl, Irma
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