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IS 14738-3 (1999): Flexible Intermediate Bulk Containers(FIBCs), Part 3: Test Methods - Cyclic Top Lift Test [TED24: Transport Packages]

IS 14738 (Part 3) : 1999

Indian Standard

FLEXIBLE INTERMEDIATE BULK CONTAINERS (FIBCs)

PART 3 TEST METHODS - CYCLIC TOP LIFT TEST

ICS 55.130

cc3 BIS 1999

BUREAU OF INDIAN STANDARDS MANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARC;

NEW DELHI 110002

Price Group 3

Transport Packages Sectional Committee, LM 25

FOREWORD

This Indian Standard (Part 3) was adopted by the Bureau of Indian Standards, after the draft finalized by the Transport Packages Sectional Committee had been approved by the Light Mechanical Engineering Division Council.

In the preparation of this standard assistance has been derived from ISOAVD 11895 - Part 3 : ‘Flexible intermediate bulk containers - Part 3 : Test methods - Cyclic top lift test’ issued by International Organization for Standardization (ISO).

IS 14738 (Part 3) : 1999

Indian Standard

FLEXIBLE INTERMEDIATE BULK CONTAINERS (FIBCs)

PART 3 TEST METHODS - CYCLIC TOP LIFT TEST

1 SCOPE

This standard (Part 3) specifies the cyclic top lift test for flexible intermediate bulk containers (FIBCs).

This standard applies to FIBCs intended to contain

non-dangerous solid materials in powder, granular, or paste form, and designed to be lifted from above by integral or detachable devices.

2 REFERENCES

The following standards contain provisions which through reference in this text, constitute provision of this standaid. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below:

IS No. Title 14738 (Part 1) : Flexible intermediate bulk contain-

1999 ers (FIBCs) : Part 1 Definitions related to FIBCs

14738 (Part 2) : Flexible intermediate bulk contain- 1999 ers (FIBCs) : Part 2 Specification,

requirements, certification and marking

3 DEFINITIONS

For the purpose of this standard the definitions of IS 14738 (Part 1) shall apply.

4 PRINCIPLE

The filled FIBC is suspended from a frame and a flat pressure plate is positioned on top of the contents. The flat plate is restrained either from above or below. An upward force is applied progressively to the frame lifting the FIBC against the resistance of the flat pressure plate. The filled FIBC is subjected to a repeated loading, unloading, and dwell cycle. The force is recorded and the FIBC observed for breakage of any lifting device, other damage, or leakage of contents.

5 APPARATUS

5.1 A suitable suspension frame, such that the filled FIBC may be suspended clear of the ground with

1

its lifting devicesspositioned as recommended by the manufacturer. Key features of the apparatus are illustrated in Fig. 1 to 4, showing the details as under:

Figure 1 illustrates multi-point lift FIBCs suspended using top restraint.

Figure 2 illustrates single-point lift FIBCs suspended using top restraint.

Figure 3 illustrates single-point lift FIBCs suspended using base restraint.

Figure 4 illustrates multi-point lift FIBCs suspended using base restraint.

5.2 The cross-section of that part of the frame supporting the FIBC lifting devices shall be as shown

in Fig. 5 (four and two point lift) and Fig. 6 (single point lift).

5.3 A flat pressure plate, of such size that it covers between 60 percent and 80 percent of the surface area of the contents, restrained from above or below by means of an appropriate structure such that it resists, without deformation, the forces applied.

NOTES

1 Flanges may be fitted to the underside of the plate to prevent

lateral displacement.

2 As illustrated in Fig. 3 and 4, restraining the pressure plate may

require connections passing through the body ofthe FIBC and its

test contents. A suitable method involves passing one or more rods

through parts of the FIBC and through the filling material.

Considerable care should be taken.

5.4 With woven fabrics, threads should be separated rather than cut and the rod shall pass through the base no closer than 20 mm to any base seam or joint. Two restraining rods [(see Fig. 3 a) and 4 a)] shall be used for FIBCs which have a seam or join running across the center of the base.

It is recommended that a conical adapter is screwed to the top of each rod and removed once the FIBC is in position. Suitable nuts should be used to connect the rod(s) to the pressure plate and to a suitable restraint.

5.5 Means of applying an upwards force to the suspension frame, at least equivalent to the required test load, fitted with a means of registering the force applied.

IS 14738 (Part 3) : 1999

A HOjSTlNG DEVICE

C LIFTING DEVICE

ESSURE PLATE

f-lUER MATERIAL

4

4 HOISTING DEVICE

SUSPENSION FRAME

ESSURE PLATE

R MATERIAL

b)

FIG. 1 MULTI-POINT LIFT FIB0 SUSPENDED USING TOP RESTRAINT

t HOISTING DEVICE

SPENSION FRAME

RESSURE PlATt

ER MATERIAL

FIG. 2 SINGLE-POINT LIFT FIBCs SUSPENDED USING TOP RESTRAINT

2

HOISTING DEVICE

SPENSION FRAME

4

IS 14738 (Part 3) : 1999

T

HOISTING DEVICE

SUSPENSION FRAME A

W

FIG. 3 SINGLE-POINT LIFT FIBCs SUSPENDED USING BASE RESTRAINT

4 HGlSllNG DMCE

SPENSION FRAUt

WNNG DMCE

I FIRC .

4

f

HOlSTlNC DMCE

PENSION FRAME

EC Lit-WC DEVICE

4

FIG. 4 MULTI-POINT LIFT FIBCs SUSPENDED USING BASE RESTRAINT

3

IS 14738 (Part 3) : 1999

RS ti$

160

Dlmensruns arc nom4 where they are not tolemnced.

FIG. 5 CROSS-SIXT:ON OF SUSPENSION FRAME TOP LIFT

TEST FOR FiRCs w tm FOUR AND TWO-POINT L~FUNG

f0.S Rl -0

+0.5 Rl -n

All dlmenatons m millimetres.

Dimensrons are nommaJ where they are not toleranced

FIG. 6 CROSS-SEWON OF SUSPENSION FRAME TOP

LIFT TESS FOR FIBCs WITH SINGLE-POINT LIFTING

6 PREPARATION OF THE TEST SPECIMEN

The FIBC to be tested shall be filled and conditioned in accordance with IS 14738 (Part 2).

7 PROCEDURE

a)

b)

cl

4

4 e)

f)

8

Locate the filled FIBC on the suspension

frame with the lifting devices positioned as

recommended by the manufacturer for multi-

point or single-point lifting,

Position the flat pressure plate above the con- tents in such a way that there is no contact

between the edge of the plate and the mate-

rial of the FIBC during the test.

NOTE-Any top panel not deigned to contribute to the overall strength of the FIBC may be removed to allow the entry of the test apparatus. The area removed should be the minimum commensurate with efficient operation of

the test apparatus.

Raise the frame to bring the filling material

into contact with the underside of the pres-

sure plate.

Continue raismg the frame by application of

the upward $21 ce at a rate of 70 + 20 kN/min

until the totai force equivalent to the speci-

fied test load IS registered.

Remove the al,i>:;ed force.

Al!ow a dweli I:_ :!od of not more than 30 s

bCfOiC ripe&ng : :!e Cycle.

Repeat :hc test c;~Cle until the specified

r,timber of:rycles has St.en completed.

Carry out ;: further tes? cycle to the appropri-

ate 1oa.i spcctfied for the final test cycle.

NOTE-- After this test is complete, further loading may

be applied until failure of:he FIBC, to provide additional

information. When this is done the load at failure will,

together with other relevant test observations, be recorded

in the test report. There is no reqtilrement, however, for

the load at failure (if It is greater than the specified test load) to be noted in the certificate or reflected in the mark-

ing ofthe FIBC.

R TEST REPORT

The test report shal! record at least the following information:

a) b)

cl

4

Test titleireference.

Name and address of the test station and the location at which the test was carried cut.

Name and address of the manufacturer of the FIBC and the location at which it was manu-

factured.

Manuficturer’s description of the FIBC to include:

i) manufacturer’s reference (unique to type)

ii) dimensions

iii) method and materials of construction

iv) description of lifting devices

v) description of discharge d&ices

4

IS 14738 (Part 3) : 1999

vi) description of inner liner (if fitted)

vii) tare mass

e) The safe working (SWL) stated by the manu- facturer for single-trip and/or multi-trip use.

r) Filling level recommended by the manufac- turer [(see 5.3.1.1 of IS 14738 (Part 2)].

g) Filling material used and the gross mass of the FIBC as tested.

h) Apparatus used, method of restraint and dimensions of the restraining plate, and cross section of suspension frame.

j) Test load, in newtons, applied to the FIBC and the number of test cycles carried out at each load. The test loads will also be shown

converted into kilograms force in order to facilitate calculation of the safety factor [(see 4.1.4 of IS 14738 (Part 2)].

k) Results of the test, including whether leak- age of contents, breakage or loosening of lift- ing devices, or protrusion of the inner liner (if fitted), took place.

m) Results of inspections to confirm that the FIBC submitted for test conformed firstly to the definitions and requirements of this stand- ard and secondly to the manufacturer’s description of the type.

n) Date of the test

p) Signature of the tester.

5

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Review of Indian Standards

Amendments are issued to standards as the need arises on the basis of comments. Standards are also reviewed periodically; a standard along with amendments is reaffirmed when such review indicates that no 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 or edition by referring to the latest issue of ‘BIS Handbook’ and ‘Standards: Monthly Additions’.

This Indian Standard has been developed from Dot : NO. LM 25 (0294).

Amendments Issued Since Publication

Amend No. Date of Issue Text Affected

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