DRAFT TANZANIA STANDARD  
 
 
TBS/GTDC4( 6326 ) P3– Blow Moulded polyolefin  containers — Specification  
(Part 1 : Up to 5 litres capacity ) 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 1 .Scope  
This Draft Tanzania standard specifies tolerances on mass, dimensions, performance requirements 
and methods of sampling and tests for blow moulded containers, made from polyolefin, with 
capacities up to and including 5 litres.  
 
This standard does not cove r containers specifically intended for products classified as dangerous 
goods.  
2. Normative  references  
The following referenced documents are indispensable for the application of this document. For dated 
references,  the edition cited applies. For undated references, the latest edition of the referenced 
document (including any amendments) applies . 
       IS 2798:  1998  Methods of test for plastic containers (first revision)  
       IS 7408:2000  Blow Moulded polyolefin  containers — Specification . 
        
       IS 7028 -1 Performance Tests for Complete, Filled Transport Packages, and Part  1: Stacking 
Tests using Static Load . 
3. Terms  and definitions  
For the purpose of this document, the following terms and definitions shall apply ; 
 
3.1 Blow Moulded Container  
container formed from a parison of heat softened ther moplastics material by the applicat ion of 
pressure which forces it agai nst the inside wall s of a blow mould  
3.2 Neck Face  
The upper most surface of the container  neck  (see Figure 1)  
3.3 Container Height to Neck Face  
The height of the highest point of the neck face of the finished empty container  (see Figure 1)  
3.4 Container Overall Height  
The height of the finished empty container at its highest point with closure and fitment (see Figure 1)  
3.5 Container Diameter  
external diameter of the finished empty container at a specified height, expressed as the mean of the 
two perpendicular diameters, or as the circumference multiplied by 0.318 at the same specified 
height.  
3.6 Neck Height  
perpendicular distance from the highest point of the plane including the neck face to the nearest point 
of the finish ed container's shoulder along a line passing through  
3.7 Neck diameter  
external diameter of the neck excluding  thre ad and and/or prominences measured as the mean  
3.8 Thread Diameter  
external diameter of the neck thread measured as the mean of two perpendicular diameters avoiding 
the pan line . 
 
 
 
 
 3.9 Neck Bore  
diameter of the inner periphery of the neck at a specified depth  
3.10 Neck Ovality  
difference  between the maximum  and the minimum neck diameters  
3.11 Nominal Capacity  
volume of liquid the container is intended to hold  
 
3.12 Fill point  
vacuum space between nominal capacity and brimful capacity of the container  
 
 
4 Capacity  
A recommended range of nominal capacities for stock containers for liquid products, together with the 
corresponding minimum brimful capacities, is given  in Table 1 , The brimful capacity shall be 
measured by the method described in  Annex A . 
    Table 1 -Capacity  
S/No. Nominal Capacity  (ml) Minimum Brimful Capacity  (ml) 
1.  100 108 
2.  200 212 
3.  500 525 
4.  1000  1035  
5.  2000  2060  
6.  3000  3075  
7.  5000  5125  
   
     NECK  
  
   
 
 NOTE 1: Capacity other than these may be agreed to between  purchaser and the supplier,  with percentage 
increase of minimum brimful capacity over nominal  capacity close to the nearest value specified in 
Table 1 . 
5 Container mass  
The container mass shall be as agreed to between the purchaser and the supplier and the tolerance 
on container mass shall be as given in Table 2 , The container mass shall be determined in 
accordance with the method described In Annex B.  
 
Table 2  -Container mass  
Mass of container (g)  Tolerance %  
Up to and including 10  ±10 
Over 10 up to and including 25  ±7.5 
Over 25  ±5 
 
6 Tolerances on dimensions  
6.1 The tolerances on dimensions specified refer to finished empty containers. Dimensions of filled 
containers may show differences.  
  6.2 Container  height to Neck Face  
The tolerance on container height to neck face shall be ±1 percent or ± 5 mm, whichever  is greater.  
The height shall be measured with accordance with method described in Annex C . 
6.3 Container Overall Height  
The tolerance on container overall shall be ± 2.0 percent or ± 1 .0 mm, whichever  is greater  
compare d to nominal value . The height shall be measured in accordance with the method described 
in Annex E .1. 
 
NOTE; For containers having a non -circular cross se ction it is permissible to have a 
peripheral method of measurement with tolerance, both of which shall be agreed between the 
purchaser and the supplier . 
6.4 Container Diameter  
The tolerance on external container diameter at an agreed height shall be 1.5 percent o r ± 0.1 mm,  
whichever is greater. The diameter shall be measured in accordance with Annex  E.2. 
 
6.5 Neck Height  
The tolerance on neck height is relative to the finished container overall height and shall be as given 
in Table 3.  The neck height shall be measured in accordance wi th the method described in Annex  
E.3. 
Table 3 - Neck Height  
Container Overall Height (mm)  Tolerance of the Height  (mm)  
Up to and including 75  ± 0.25 
Over 75  ± 0.40 
 
 
 
 6.6 Neck and Thread Diameters  
The tolerance on neck and thread diameters shall be ±1.25 percent or  ±0.25 mm, whichever is 
greater  compared to declared nominal value . These diameters shall be measured in accordance with 
the method described in Annex  E.4 
 
6.7 Fill point  
The fill point level shall be agreed upon between purchaser and supplier depending on the indented 
use of the container.  
 
6.8 Wall Thickness  
The wall thickness shall be measured in accordance with the method described in Annex  E.5.The 
minimum wall thickness at any point of the container  shall be not less than 0.20 mm.  
 
7 Performance requirements  
7.1 Closure Leakage Test  
The containers when tested by the  method describe d in Annex F  shall not show any leakage.  
7.2 Drop Impact Strength  
The container when subjected to the drop test by the method described in Annex G  shall show no sign 
of ruptur e or leakage from the walls of t he container slight distortion  of the body shall not render the 
container unacceptable in the test.  
7.3 Stack Load Test 
The containers shall not show any cracks or permanent bu ckling  likely to reduce their strength, 
cause leakage or reduction in effectiveness of the closure or cause instability in stacks when tested 
in accordance with the method described Annex H . 
7.4 Hydrostatic Pressure Test  
The containers when tested by the method described in Annex L  shall not show any sign of rupture 
or leakage from the container other than from around the mouth or localized buckling . 
7.5 Environmental Stress -Crack Resistance  
The containers when tested in accordance with Method 1 of IS 8747  shall show no evidence of 
stress  cracking or leakage after being kept in the oven for 48 h.  
7.6 Effectiveness of Surface Treatment  
The printed containers when tested by the method described in Annex D shall show no sign of paint 
removal  
 
7.7 Ink Adhesion of Printed Containers  
The printed matter on the containers when tested in accordance with the method described Annex J  
shall be still legible.  
 
7.8 Product Resistance of Printed Containers  
The printed matter on the containers when tested in accordance with the method described in Annex 
K shall be still legible  and printed matter should not be easily wear on contact.   
 
7.9 Test for Compatibility  
The containers shall be tested for determinati on of compatibility for an intended purpose as per the 
method described in 12 of Annex I . 
 
 
 8 Marking  
 The containers shall be legibly and indelibly marked with the following information ; 
 
a) Manufacturer's name, initials or trade -mark.  
b) Nominal capacity of the  container in ml or litres . 
c) Batch No. and year of manufacture . 
d) Recyclable /non-recyclable  symbol.  
e) Plastic identification code.  
 
9.Sampling  
9.1 Scale of sampling  
9.1.1 Lot  
In consignment, all the containers of the same material drawn from a single batch of manufacture 
shall be grouped together to constitute a lot.  
9.1.2 For ascertaining the conformity of the containers to the requirements of this standard, test 
shall be carried out separately for each lot. The number of containers  to be sampled from a lot 
shall be in accordance with Table 4  
9.1.2 The containers shall be selected at random from the lot.  
9.2 Number of tests and criteria for conformity  
9.2.1 The number of tests and criteria for conformity shall be determined according to Table 5.  
9.2.2 Drop Impact Strength and Stack Load Test  
One set of sample containers as given in the test methods (7.2 and 7 .3) shall be drawn from the lot 
and these shall be subjected to the respective tests. The sample shall pass the tests for acceptance 
of the  lot in respect of drop impact and stacking requirements . 
 
Table 4 -Scale of Sampling and Permissible Number of Defectives  
(clause  9.1.2) 
 
S/No.  
 
 
 
 
(1) Lot size  
 
 
 
 
(2) For Non -Destructive Tests  For wall Thickness 
Measurement, Sub -
Sample size (Number 
of Containers to be 
Selected)  
(5) Sample size ( Number of 
Containers to be Selected)  
 
 
(3) Permissible Number of 
Defective  
 
 
(4) 
1.  Up to 100  5 0 2 
2.  101 to 300  13 1 2 
3.  301 to 500  32 3 2 
4.  501 to 1000  50 5 3 
5.  Over 1000  80 7 5 
 
 
 
 
 
 
 
 
  
 
Table 5 - Number of tests and Criteria for Conformity  
(clause  10.2.1) 
 
S/No.  
(1) Characteristics  
(2) Clause Ref . 
(3) Number of Tests  
(4) Criteria for 
Conformity  
(5) 
1.  Brimful capacity  4 According to column 3 of 
table 4   The number of 
defective containers 
for one or more 
characteristics does 
not exceed the 
corresponding 
number given in 
column 3 of table 4  2.  Container  mass  5 
3.  Dimensions  6.2,6.3,6.4,6.5,6 .6,6.8,and 
6.9 
4.  Closure leakage  7.1 
5.  Hydrostatic 
pressure  7.4 
6.  Wall thickness  6.7 According to column 5 of 
table 4  All the containers 
satisfy the  relevant 
requirements  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 ANNEX A  
(Clause 4 ) 
DETERMINATION OF BRIMFUL CAPACITY  
 
A.1 Apparatus  
 
A.1.1 A rigid transparent plastics disc with a slot big  enough to completely cover the neck face of the 
container . 
 
A.1.2 Weighing  balance  to determine  the mass of the container to an accuracy of 0.1 g. 
 
A.2 Procedure  
 
A.2.2 Weigh the empty container and the rigid transparent plastic disc to an accuracy of 0.1  g 
A.2.3 Fill the container with water to within approximately 3 mm of brim. The water used shall be at 
ambient temperature or in case of dispute, at 27±2°C.  
A.2.4 Place the rigid transparent plastic disc on the neck face and top -up by carefully pouring wa ter 
through the slot by a dropper or a pipette until the water is seen just contacting the underside of the 
disc. 
A.2.5 Weigh the filled container, together with the rigid transparent plastic disc to an accuracy of 0.1 
g. 
 
A.2.6 The difference in weighing is the mass of the water recorded in grams. The results shall be 
expressed to the nearest 0.1 g.  
 
A.2.7 Alternately the volume of water can be measured directly to the nearest  millilitres.  
 
A.3 Result  
 
A.3.1 The mass of the water in grams or volume of wat er measured is numerically equal to the brimful 
capacity of the container in millilitres.  
 
A.3.2 For expressing the brimful capacity of a container at a uniform temperature of 4 0C, the value 
obtained at A.3.1 shall be multiplied by the correction factor Cf corresponding  to the water 
temperature given in Table 6 . 
Table  6 Volume Correction Factors for Water Temperatures  
 
Water 
Temperature 0C Correction Factor Cf  
12 1.0005  
14 1.0008  
16 1.0011  
18 1.0014  
20 1.0018  
22 1.0022  
24 1.0027  
26 1.0033  
28 1.0038  
30 1.0044  
32 1.0050   
 
 34 1.0056  
36 1.0063  
38 1.0071  
40 1.0078  
 
ANNEX B  
(Clause 5 .2)  
MEASUREMENT OF CONTAINER MASS  
B1.Ascertain the container mass by weighing the empty container on a balance weighing to an 
accuracy of 0.1 g. The accuracy of weighing shall be:  
a) to the nearest 0.1 g for a container mass up to 50 g;  
b) to the nearest 0.5 g for a container mass over 50 g up to 200 g; and  
c) to the nearest I g, for a container mass over 200 g.  
 
ANNEX C  
(Clause 6 .2) 
MEASUREMENT OF CONTAINER HEIGHT TO NECK FACE  
C1.Ascertain the container height to neck face by placing the empty container on a flat surface and 
measuring to the highest point on the neck face using a micrometer height gauge.  The measurement 
shall be to an accuracy of 0.05 mm . 
 
ANNEX D  
(Clause 7.6 ) 
TESTS FOR EFFECTIVENESS OF SURFACE TREATMENT  
D1 Procedure  
D1.1 Paint the container surface with a thin coating of a solution consisting of 20 pe rcent rotogravure 
ink in n -butyl acetate . 
D1.1.2 Allow  to dry for 5 min at ambient temperature.  
D1.1.3 Apply transparent adhesive tape and leave  for 15 s. 
D1.1.4 Remove t he tape slowly . 
ANNEX E  
(Clause 6.3,6.4,6.5 ,6.6,6.7 ) 
MEASUREMENT OF DIMENSIONS  
E.1 Overall Height  
E.1.1 Apparatus  
E.1.1.1 Micrometre height gauge  
 
 
 E.1.2 Procedure  
Place the container on  a surface plate and measure to the highest point on t he container using a 
micrometre height gauge at two positions as follows:  
a) Close to but avoiding the part line; and  
b) At 90’ t o the position specified at ( a). 
E.1.3 Calculation  
The height is recorded as the mean of the two readings. The accuracy or measurement shall be 0.1 
mm. 
E.2 Diameter  
E.2.1 Apparatus  
E.2.1.1 Vernier micrometer or circumference gauge  
E.2.2 Procedure  
The container diameter shall be ascertained by either of the micrometer or circumference gauge 
method.  
E.2.2.1 Micrometer method  
By using a Vernier or mic rometer, measure the diameter of the con tainer at a specified height as 
follows:  
a) Close to but avoiding the part line; and  
b) At 90’  to the position specified at (a).  
The accuracy of m easurement shall be 0.1 mm. The diameter is recorded as the mean of th e two 
diameters at right angles.  
E.2.2.2 Circumference gauge method  
By using a circumference gauge, measure the circumference at a spe cified height.   
Record the diameter as the circumference multiplied by 0.318.  
          NOTE - The circumference gauge normally gives the mean  diameter directly . 
E.3 Measurement of Neck Height  
E.3.1 Apparatus  
E.3.1.1 Micrometer depth gauge  
E.3.2 Procedure  
Place the anvil of the depth gauge on the neck face, and move the instrument laterally until the 
spindle touches the outermost neck feature. See that the tip of  the spindle is allowed to touch the 
container shoulder and read the scale.  
E.3.3 Calculation  
Record the neck height as the mean of the two readings taken at right angles at the neck face . 
E.4 Measurement of Neck and Thread Diameters  
E.4.1 Apparatus  
E.4.1.1 Micrometer  or Vernier, giving an accuracy of measurement of 0.02 mm.   
 
 E.4.2 Procedure  
E.4.2.1 Measure the neck with a vernier or micrometer as follows : 
a) Close to but avoiding the part line; and  
b) At 90° to the position specified at (a).  
E.4.3 Calculation  
The diameter is recorded as the mean of the two diameters at right angles . 
 
E5 Measurement of Wall Thickness  
E.5.1 Apparatus  
E.5.1.1 Micrometer/screw gauge, fitted with ball point tips or dial calliper gauge fitted with spherical 
anvils giving an accuracy of measurement of 0.02 mm.  
E.53 Procedure  
The container wall th ickness shall be ascertained by either of the methods indicated below.  
E.5.2.1 Micrometer method  
Cut the container horiz ontally into three pieces (top.  Middle and bottom) with a pai r of scissors or 
hacksaw blade. Measure the w all thickness with a micromete r or screw gauge fitted with  ball point tip, 
at four places in each section. Take t he average of four readings and report as wall thickness at top, 
middle and botto m. 
E.5.2.2 Dial calliper  gauge method  
Measure the wall thickness with the help of dial calli per fitted with spherical anvil s, Care shall be taken 
to avoid movement of the conta iner during measurement as this may affect the re ading obtained. The 
measurement shall be to an accura cy of 0.02 mm. Take the mean of three readings at any lo cation 
(top, middle and bottom) as wall thickness.  
 
ANNEX F  
(Clause 7.1) 
CLOSURE LEAKAGE  
F.1 Procedure  
F.1.1  Fill the container up to nominal capacity with coloured  water or the m aterial to be packed at 
ambient temperature, and close t ight with the closure. Keep the container in an invert ed position on a 
white blotting paper without any e xternal support for at least 30 minutes. The cont ainer shall be 
examined for any leakage which wo uld be evident from any visible stains on the blotting  paper.  
 
The method helps to determine the ability of a closure  (on a container) to prevent leakage due to the  
transportational vibration.  
 
F.2 Vibration Table  
 
F.2.1 The vibration table, o f sufficient size, rigidity and mass -carrying capacity, supported on a 
mechanism  that shall maintai n the surface horizontal during vibration. The difference in surface level 
between the  table extremities shall not exceed 10 mm.  
 
The table may be equipped with:  
  
 
 a) low fences to restrict sideways and endways  movement during testing;  
b) high fences or other means of maintaining a  superimposed load in position on the test 
container  
            during testing; and  
c) means to simulate the method of restraining the  container during transit  
 
 In addition, the appara tus shall meet the re quirements md tolerance given in F.2.2 
 
F.2.2 Procedure  
 
F.2.2.1  Fill the container to its nominal capacity with the  product or coloured water and close it with 
the usual  closure in the manner in which it is intended to be used.  
 
F.2.2 .2 Place the test container in the predetermined attitude  on the vibration table ( see F.2 ), with the 
centre of its  lowest face or its centre of gravity as near as  practicable within 10 mm of the centre of 
the table; if  the container is not secured to the tabl e it may be  Fenced. If a superimposed load is 
required, the loading  procedure shall comply with IS 7028 (Part 1).  
 
F.2.2 .3 Operate the table between 3,4  and 6 Hz for the  predetermined period to give a peak 
acceleration in the  range of 0.5 to 1.1 g. The movement shall be such that  vertical component is 
approximately sinusoidal; a rotary movement of the table is acceptable.  
 
NOTE - If instrumentation used to determine the vibration  level, the accelerometer should be  
attached to the table near the container, but protected so that the test container shall  not come 
into contact with it. For testing at 1.1 g, in place of  instrumentation, the proper freq uency setting 
may be determined by starting the vibration of the table at a frequency of about 2 Hz. a nd 
steadily increasing the frequency until some portion of the container repeatedly leave s the 
table, to ensure that the container receives a continuing series of repetitive shocks . 
 
F.2.2 .4 At the end of the test period, the closure shall show no  indication of leakage.  
 
 
ANNEX G  
(Clause 7.2) 
DROP IMPACT TEST  
G.1 Principle  
 
The drop test is used to measure the ability of the container to withstand rough handling while in a 
packed condition.  
 
G.2 Equipment . 
 
Any suitable equipment may be used provided that it conforms to the following requirements:  
 
a) Permits accurate prepositioning of the container to assure an unobstructed fall from rest and 
impact at the specified places and in the desired direction;  
b) Permits accurate and convenient control of the height of drop; and  
c) Provides a solid surface of concrete to absorb all shock without deflection.  
 
G.3 Drop Height  
  
 
 Unless specified otherwise in the container standard, the drop height of the containers up to 5 kg or 5 
litres capacity shall be 1.2 m, for containers of 1 0 kg or 10 litres capacity 1 m and for containers of 15 
kg or 15 litres capacity it shall be 0.5 m respectively.  
 
 
 
G.4 Sample Size  
The sample size shall be six containers, taken at random from a batch, divided into two sets of 3 
each, designated as Set 1 and Set 2.  
 
G.5 Procedure  
 
G.5.1 Fill each containers to its nominal capacity with water at standard conditions as specified in the 
specification of the individual conta iners (in case, conditions have not  been specifie d, it shall be taken 
as ambient conditions).  
 
G.5.2 Close each container with its usual closure with the inner  seal heat sealed to its mouth. Drop  
the containers und er free fall condition in Set 1 squarely on their bas e on to a rigid flat horizontal 
surface of steel or smooth concrete as the dropping  surface.  
 
 G.5.3  Drop  the containers und er free fall condition in Set 2  on their side (the body of the container  
being parallel to  the impacting ‘floor ) onto the dropping surface.  
 
G.5.4 The containers shall not rupture nor shall there be any leakage  from the walls of the container. 
Slight deshaping of the body shall not render the containers unacceptable in the test.  
 
NOTE - If the liquid to be packed is of high density, the material itself or a suitable material of 
similar density should b e used instead of water.  
 
G.6 Test at 0°C  
 
G.6.1.This test i s normally carried out only for multi -tip containers  for transport  of hazardous goods  
liable to be sub jected to low temperatures. The container shall be filled  to the nominal capacity with a 
liquid at tes t temperature (for example, for polyethylene containers ,12 percent methylated spirit in 
water or an ethylene glycol/water mixture  is suitable). The filled containers shall then be chille d to a 
temperature  in the rang e -4 to 0°C and stored  at that range for at least 4 h.  
 
G.6.2 The containers shall be subjected to drop test as per the procedure specifi ed at G .5. 
 
 
 
ANNEX H  
(Clause 7.3) 
STACK LOAD TEST  
 
H.1 Principle  
 
A force is applied  to the top face of the package equivalent in magnitude t o the total weight of 
identical packages stacked on t op to a minimum stack height of 3 m. The duration is 24 h.  
 
H.2 Sample Siz e 
 
Four containers shall be used for each single test.  
 
H.3 Procedure  
  
 
 H.3.1 Fill the containers wi th water at ambient temperature up to nominal capacity a nd close with the 
usual closure to the nominal torque (i f the liquid to be packed is of high density, it shoul d be used as 
the test medium).  
 
H.3.2 Arrange the cont ainers in a block at 2 x 2 on a rigid, level, flat surface. Appl y a top load evenly 
distributed on a flat plate placed  on the unsupported containers.  The total superimposed load along 
with the load of the flat surface for different sixes of containers shall  be as specified in the 
specifications of the individual container.  
 
H.3.3 Examine the containers  after 24 h of test period. The containers shall not show any cracks or 
permanent  buckling likely to reduc e their strength, cause leakage or reduction in effectivenes s of the 
closure or cause instability in stacks.  
 
ANNEX I  
(Clause 7.9) 
 
TEST FOR COMPATIBILITY  
 
I.1 General  
 
This method is for de termination of compatibility of plastics container s for an intended purpose . For 
specific application  for packaging of food, pharmaceuticals and dr inking water, reference may be 
made to Standards on Specific Products . 
 
I.2 Principle  
 
Piece of plastics mater ial with which the container is made are treated at a n elevated temperature 
with the liquid which the containe r is intended to transport. Any changes in organoleptic 
characteristics, weight, dour or flavour, size, shape an d colour that occur in the test specimens are 
noted. For dry products, the tests may be carried out only on  the containers filled with the produ ct as 
in I.4.2. 
 
I.3 Test Specimens  
 
I.3.1 Material  
 
Three test pieces of a pproximately 15 cm X 15 cm size shall be cut from any co nvenient part of the 
container.  Each  test piece shall be cleaned, wiped and dried. It shall be measured for  length, width 
and thickness to the nearest 0.05 mm and weighed to the nearest milligram.  
 
 
I.3.2 Container  
 
Six samples of specific  container intended for packing of particular product sha ll be tested in 
accordance with the test procedure given at I.4.2 
 
I.4 Procedure  
 
I.4.1 Testing of Material  
 
The liquid ,which is intended to be tilled in the container shall be introduced into a glass vessel and  
test piece s completely immersed, avoiding unnecessary contact wit h the other pieces or the walls of 
the glass vessel . Where the density of plastics material is less than that of the liq uid, small weights,  
inert to the liquid, may be used to prevent the test pieces from either floatin g or curling. The test shall 
be carried out continuousl y over 28 days at a temperature of 50 f 2°C. The liqu id and the test pieces 
shall be thoroughly agitated every 24 h.  
 
After the required te st period has elapsed, the test pieces shall be removed from the liquid, suitably   
 
 cleaned, drie d, weighed and measure d as in I .3.1. 
 
I.4.2 Testing of Container  
 
In order  to assess the compatibility of the container, the container shall be filled with the product to 
nominal capacity, sealed an d capped in the manner intended and kept at a temperature of 50 f PC for 
a period of 28 days. At the end of t his period the containers shall be examined for the following:  
 
a) Visible cracks, if any;  
b) Change in colour;  
c) Change in weight; and  
d) Change in shape.  
 
I.5 Test Result and Interpretation  
 
I.5.1 Any change in weight, dimensions or alterations in other c haracteristics (such as colour.  
Blooming , etc.) or any other deteriorati on in quality of the product shall be used by manufacturer and  
purchaser in reaching a greement as to the stability of the plastics  material for its intended purpose.  
 
I.5.2 Further Testing  
 
Where, in the opinion of  either the manufacturer or the purchaser, it is conside red that further 
information on compatibility is required (for example at low temperature) further testing may be carried 
out on a sample container filled with liquid to be transported. Precise  requirements shall be 
determined by agreement betw een the manufacturer and the purchaser.  
 
I.5.3 The actual stora ge test shall be carried out at the room tempera ture f or one -third of the 
anticipated shelf life period for the products that are not stable at the suggested temperature of 
50±2°C. 
 
 
ANNEX J  
(Clause 7.7) 
 
 TEST FOR INK ADHESION OF PRINTED  CONTAINERS  
 
J.1 Procedure  
 
J.1.1 Apply two strips of 25 mm wide transparent pressure sensitive tape or ce llo tape to the printed 
area of container; one piece d own the length of the container and the other round the circumference.  
 
J.1.2 Press the tape firmly o n to the container and leave it for 15 seconds.  
 
J.1.3 Remove the tape by pulling  slowly at about 1 cm/s from one end at about 90 ° to the container 
surface.  
 
J.1.4 There shall be no signif icant removal of the print from the surface of the c ontainer and the print 
shall be legible to the naked eye after the test.  
 
 
 
  
 
  
 
 
ANNEX K  
(Clause 7.8) 
 
TEST FOR PRODUCT RESISTANCE OF  PRINTED CONTAINERS  
 
K.1 Procedure  
 
K.1.1 Leave the containers to stand for  at least 24 h after printing.  
 
K.1.2 Smear the containers, or  representative section cut -out from the printed area, w ith the product 
at 40 ±2°C and leave it for 1 h.  
 
K.1.3  Wash the container or its representative section with cold water.  
 
K.1.4  Rub each container or representative section firmly with hard paper tissue ten times.  
 
K.1.5  There shall be no signif icant removal of the print from the surface of the c ontainer and the print 
shall be legible to the naked eye after the test  
 
 
ANNEX L  
(Clause 7.4)  
HYDROSTATIC PRESSURE TEST  
 
L.1 Apparatus  
 
L.1.1 A water supply at ambient temperature  connected to a tapered rubber plug will seal the mouth 
of the container. A suitably modified screw cap may be used instead of the rubber plug.  
 
L.1.2 A means of raising the water pressure and a pressure gauge of range 0 to 15 kg/cm2. 
 
L.2 Procedure  
 
L.1.1 The container shall be f itted with water to exclude all air and then con nected to the water supply. 
The pressure shall be increased  to a level as specified in the individual specificat ions and held for a 
period of 5 minutes.  
 
L.1.2 Any sign of rupture or l eakage from the container other than from around the mo uth or localized 
bulging of the container shall be deemed to indicate failure.