DBZ CP 1: Part 1: 201X (Revision)  
 
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 ISSUED FOR COMMENT S ONLY  
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DRAFT  
BELIZE CODE OF PRACTICE FOR  
STORAGE OF TYRES, INNER TUBES AND FLAPS  
 
 
  
 
 
This is a draft and should not be regarded or used as a Belize Standard.  
 
 
Last date for comments: ( 06 October, 2017 ) 
 
 
 
 
 
 
 
 
BELIZE BUREAU OF STANDARDS  
Power Lane, Ministry of Works Compound  
P. O. Box 430  
City of Belmopan , Cayo District  
Belize, Central America  
DBZ CP 1: Part 1: 201X (Revision)  
 
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 DRAFT  BELIZE CODE  OF PRACTICE FOR  
STORAGE OF TYRES, INNER TUBES AND FLAPS  
 
 
Committee Representation  
The preparation of this standard for the Standards Advisory Council established under the 
Standards Act 1992 was carried out under the supervision of the Bureau’s Technical Committee 
for Tyres , which at the time comprised the following members:  
TECHNICAL C OMMITTEE  
CHAIR                                                                   REPRESENTING              
Mr. Ricardo Diaz      Santos Diaz and Sons  
 
MEMBERS                                              REPRESENTING  
Mr. Vallan Hyde      Department of Transport  
Mr. Henry Reimer      Caribbean Tyres  
Mr. Kenrick Gordon      Department of Environment  
 
  
TECHNICAL SECRETARY  
Mr. Lloyd Orellano  
Belize Bureau of Standards  
 
 
 
 
 
 
 
 
 
 DBZ CP 1: Part 1: 201X (Revision)  
 
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 Table of Contents  
0 FOREWORD  ................................ ................................ ................................ ................................ ........  4 
1 SCOPE  ................................ ................................ ................................ ................................ ..................  4 
2 STORAGE  ................................ ................................ ................................ ................................ ............  4 
3 STORAGE  CON DITIONS  ................................ ................................ ................................ ..................  4 
3.1 Humidity  ................................ ................................ ................................ ................................ ....... 4 
3.2 Light  ................................ ................................ ................................ ................................ ..............  4 
3.3 Temperature  ................................ ................................ ................................ ................................ .. 5 
3.4 Ozone ................................ ................................ ................................ ................................ ............  5 
3.5 Chemicals  and Lubricants  ................................ ................................ ................................ ............  5 
3.6 Stock  Rotation  ................................ ................................ ................................ ..............................  5 
3.7 Storage position  ................................ ................................ ................................ ............................  5 
4 INNER TUBES  AND  FLAPS  ................................ ................................ ................................ .............  6 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 DBZ CP 1: Part 1: 201X (Revision)  
 
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 DRAFT  BELIZE CODE OF PRACTICE FOR  
STORAGE OF TYRES, INNER TUBES AND FLAPS  
 
 
0 FOREWORD  
 
0.1 Rubber  products in general can deteriorate  during stora ge and in extreme 
circumstances  could become unserviceable.  Deter ioration  can be caused  by 
such factors  as deformation  of the article or by the action of ozone, light,  heat or 
humidity. It is important, there fore, to minimize these effects  by taking  
appropriate  precautions  during  storage  in order  that tyres, tubes  and flaps are 
maintain ed in good condition.  
0.2 In preparing  this standa rd assistance  was derived from:  
a) Saint Lucia Code of Practice (SLCP 9: 2006 ) - Code o f Practice for the Storage 
of Tyres Inner Tubes and Flaps  
1 SCOPE  
This code  of practice  gives requirements  for storage  of tyres,  inner  tubes  and flaps.  
2 STORAGE  
Tyres shall be stored inside  a building to protect tyres, tubes and flaps from  humidity, light, 
temperature (heat), ozone and chemicals. Tyres shall not be stored in a manner which could 
cause deformation.  
3 STORAGE  CON DITIONS  
3.1 Humidity  
a) The store  room  shall  be dry and partially  ventilated.  
 
b) Moist  conditions  shall  be avoided  as tyres  can absorb  moisture -causing  
degradation  of the structure  with a risk of subsequent  failure  in service.  
3.2 Light  
a) Tyre s shall  not be stored  in direct  sunlight  and shall  be protected  from  artificial  
light having  a high ultraviolet  content.  
 
b) Lighting  with filament  type lamps  shall  be used in preference  to florescent  
tubes .   
 
c) Daylight  shall  be reduced  by tinting  glass  windows  with a red or orange  
coating  or screen  to absorb  ultraviolet  light. DBZ CP 1: Part 1: 201X (Revision)  
 
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 3.3 Temperature  
 
Tyres shall not be stored at temperatures higher than 35oC, the preferred 
temperature range being 25oC to 30oC. 
 
NOTE:  It is essential  that tyres  are not stored  in direct  contact  with hot 
surface,  e.g. radiators,  hot pipes,  etc. 
3.4 Ozone 
a) As ozone  is particularly  deleterious  to rubber,  storage  rooms  shall  not contain  
any equipment  that is capable  of generating  ozone,  such as mercury  vapour  
lamps  and high-voltage  electrical  equipment  giving  rise to electric  sparks  or 
silent  electrical  discharges.   
 
b) Combustion  gases  and organic  vapour  shall  be excluded  from  storage  rooms,  
as they may give rise to ozone  via photochemical  processes.  
3.5 Chemicals  and Lubricants  
a) Solvents  such as petrol , paraffin,  oil, grease,  acids  and disinfectants  are 
harmful  to rubber  and shall  be stored  separately.   
 
b) Storage  areas  shall  be free from  all forms  of dirt and grease,  which,  even  if not 
damaging,  will mar the appearance  of the tyres.  
3.6 Stock  Rotation  
a) A first-in, first-out policy  shall  be adopted  to minimize  the storage  period  and 
hence  any deterioration  of products  before  use.  
 
b) Tyres  that have  been  in storage  for more  than six (6) years  from  the date of 
manufacture  or rethreading  shall  not be put in service  without  reference  to the 
tyre manufacturer  or rethreaded,  as appropriate.  
3.7 Storage position  
Vertical, horizontal or plaited (laced) method shall be used to store tyres to prevent 
deformation.  
a) Horizontal Storage  
Horizontal storage of tyres shall be stacked with the maximum number of ten 
(10) tyres (see A nnex  A, Figure 1). The stacking order shall  be rotated at least 
every six ( 6) months. Heavy lug tyres, e.g. agriculture tractor tyres, stored 
horizontally should be positioned with the tread lugs coinciding, to avoid 
sidewall deformation.  
 DBZ CP 1: Part 1: 201X (Revision)  
 
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 b) Vertical Storage  
Vertical storage of tyres shall be in palle ts, particularly for long -term storage 
(see Annex  A, Figure 2 ). Tyres stored by this  method shall be turned through at 
least 10o at intervals of not more than  six (6) months.  
 
c) Plaited or Laced Storage  
Plaited or laced storage can be used for large amounts of tyres. Tyres shall not 
be stacked more than 2.4 mm (8 feet) high and shall be rotated at least every 
three (3) months (see A nnex  A, Figure 3).  
4 INNER TUBES  AND  FLAPS  
 
a) Tubes,  which  are packed  in cartons or bags,  shall  be left in these to provide  some 
protec tion against contamination,  ozone and light. If tubes  are loose  they shall  
be stacked on flat unslotted  shelves or pallets  so that the valves are not deformed and 
do not damage neighbouring  tubes.  
 
b) Flaps shall  be stored on flat, unslotted  shelves or pallets.  
 
c) Tubes  and flaps  shall not be hung  as this can cause  stretching.  
 
 
 
 
 
 
 
 
 
 
 
 
 
 DBZ CP 1: Part 1: 201X (Revision)  
 
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 Appendix A: Tyres Storage Positions  
 
 
 
   
 
 
 
 
 
 
 
   
                             
 
 
 
 
 
 
 
 
 
 
- End of Document  - 
Figure 1 – Horizontal  Storage  
Figure 3 – Plait or Laced  Storage  
 Figure 2 – Vertical  Storage