This document discusses the implementation of revisions to the STI document STI/13849/4 due to the publication of Amendment No. 5 to the Indian Standard IS 13849:1993 for portable fire extinguishers of the dry powder type. Key points include: 1. Amendment No. 5 deletes the fire knock down test and includes a test for adhesion of plastic lining. 2. The revised STI document must be implemented by August 1, 2005. 3. Applications already in an advanced stage can be processed under the previous standard if the applicant agrees to implement the revised STI by August 1.

1. BUREAU OF INDIAN STANDARDS
CENTRAL MARKS DEPARTMENT-III
Our Ref: CMD-III/16:13849 25 May 2005
Subject: Implementation of the revised STI, Doc: STI/13849/4, July 2005, due to Printing
of Amendment No. 5, March 2005 to IS 13849:1993- Specification for Portable Fire
Extinguisher, Dry Powder Type (stored pressure).
Amendment No. 5 to IS 13849:1993 has been published (copy enclosed).The requirement of
Fire Knock down Test has been deleted and Test for adhesion of Plastic lining (Type Test) has been
included besides other changes.
Vide CMD circular No. CMD-III/16:13849 dated 17 May 2004 Amendment No.3 & 4 to IS
13849:1993 were implemented keeping in abeyance “Fire Knock down Test” on Fire Extinguisher
in view of CED’s note CED 22/A-2.12 dated 5 May 2004 informing that the convener of the
concerned committee has opined that fire knock down test for fire extinguisher was not required
for the time being as the Fire ratings were not covered in the standard in case , dry powder was
conforming to IS 4308 for B,C class or 14609 for A, ,B C class. Further CED had informed that
necessary actions were being taken by them to process the necessary amendment.
Amendment No.5 takes care of the aspect of“ Fire Knock down Test” on Fire Extinguisher.
In order to implement Amendment No. 5 to IS 13849:1993, the STI document has been
revised as Doc:STI/13849/4 , July 2005 (copy enclosed).Applicability of the changes may be
examined and availability of additional testing facilities & conformance of product be verified in
respect of operating licences. Implementation of the revised STI be ensured w.e.f. 01 Aug 2005.
All new applications be processed taking into account Amendment No. 5 to the standard.
Applications where samples have already been tested as per IS 13849:1993, without considering
Amendment No. 5 to the standard and where the case is in advance stage may be processed as it is
for grant of licence after obtaining an undertaking from the applicant that the revised STI shall be
implemented w.e.f. 01 August 2005.
(B.K. Shreevastava)
Director (CMD-III)
Encl:As above
D&H (CMD-III)
DDGM
All ROs /BOs /CL
c.c. CMD-1
CED-For gazette notification

2. -
DOC: STI/13849/4
July 2005
SCHEME OF TESTING AND INSPECTION
FOR CERTIFICATION OF
PORTABLE FIRE EXTINGUISHER DRY POWDER TYPE
(STORED PRESSURE) ACCORDING TO IS 13849:1993
(Including Amendment No. 1 to 5)
1. LABORATORY – A laboratory shall be maintained which shall be suitably equipped and
staffed where different tests given in the specification shall be carried out in accordance with the
methods given in the specification.
2. TEST RECORDS - All records of tests, inspection and calibration shall be kept in suitable
forms approved by the Bureau.
2.1 All testing apparatus/measuring instruments shall be periodically checked and calibrated and
records of such checks/calibration shall be maintained.
2.2 Copies of any records and other connected papers that may be required by the Bureau shall
be made available at any time on request.
3. QUALITY CONTROL – It is recommended that, as far as possible, Statistical Quality
Control (SQC) methods may be used for controlling the quality of the product during production as
envisaged in this Scheme [See IS 397(Part I):2003, IS 397(Part 2):2003 and IS 397(Part 3):2003].
3.1 In addition, effort should be made to gradually introduce a Quality Management System in
accordance with IS/ISO 9000 series as appropriate to the activities of the organization.
4. STANDARD MARK – The Standard Mark, as given in Column (1) of the First
Schedule of the licence, shall be marked on each extinguisher, provided always that the
extinguisher to which this mark is applied conforms to every requirement of the specification..
5.0 OPTIONAL REQUIREMENT FOR ECO MARK - Requirements of clause 11.1 to
11.2.5 of the IS standard shall be complied in case the licence includes ECO mark. This is,
however an optional requirement.
.
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3. DOC: STI/13849/4
July 2005
6 MARKING - In addition the following information shall be clearly and permanently
marked on each extinguisher
a) Name of the manufacturer or trade mark, if any;
b) Method of operation in prominent letters;
c) The words 'Dry powder Extinguisher' stored pressure type;
d) The capacity of the extinguisher in kg;
e) The words 'Recharge After Use';
f) A declaration to the effect that the body of the extinguisher has been tested to a
pressure of 30 kgf/cm2;
g) The words Keep This End Up while using;
h) Letter indicating the suitability of the unit for various classes of fires;
i) Year of manufacture and Sl No. of the extinguisher;
j) Class of Fire, BC or ABC; and
k) Control Unit No. to trace back factory test records.
l) Licence No. (CM/L........)
m) Criteria for which the product has been awarded ECO mark (if applicable).
7. LEVELS OF CONTROL - The tests, as indicated in Table 1 attached and at the levels of
control specified therein, shall be carried out on the whole production of the factory which is
covered by this scheme and appropriate records and charts maintained in accordance with paragraph
2.0 above. All the production which conforms to the Indian Standards and covered by the licence
shall be marked with certification mark of the Bureau.
7.1 CONTROL UNIT - For the purpose of this scheme extinguisher of the same capacity
using the dry powder from the same consignment, undergone similar conditions at the time of
manufacturing and using raw material from the same consignment as per table 1 of IS 13849:1993,
manufactured in one shift shall constitute a control unit.
7.1.1 Each extinguisher shall pass the test capacity, dry nitrogen, shape, painting, leakage test.
However, if one or more extinguisher do not satisfy the specified requirement in respect of the
specification, the extinguisher in the control unit shall be rejected for the purpose of marking.It may
however be rectified and such rectified extinguisher when tested shall satisfy the specified
requirements for the purpose of marking.
7.2 On the basis of tests and inspection, the decision regarding conformity or otherwise of the
control unit to a given requirement shall be made.
8.0 In respect of all other clauses of the specification the factory will maintain appropriate
control and checks to ensure that their product conforms to the various requirements of this
specification.
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4. DOC: STI/13849/4
July 2005
9 REJECTIONS – A separate record shall be maintained giving information relating to the
rejection of the production not conforming to the requirements of the specification and the method
of its disposal. Such material shall in no circumstances be stored together with that conforming to
the specification.
10 SAMPLES – The licensee shall supply, free of charge, the samples required in accordance
with the Bureau of Indian Standards (Certification) Regulations, 1988, as subsequently amended,
from the factory or godowns. The Bureau shall pay for the samples taken by it from the open
market.
11 REPLACEMENT – Whenever a complaint is received soon after the goods with Standard
Marks have been purchased and used, and if there is adequate evidence that the goods have not
been misused, defective goods or their components are replaced or repaired free of cost by the
licensee in case the complaint is proved to be genuine and the warranty period (where applicable)
has not expired. The final authority to judge the conformity of the product to the Indian Standard
shall be with the Bureau.
11.1 In the event of any damages caused by the goods bearing the Standard Mark, or claim being
filed by the consumers against BIS Standard Mark and not “conforming to” the relevant Indian
Standard, entire liability arising out of such non conforming product shall be of licensee and BIS
shall not in any way be responsible in such cases.
12.0 STOP MARKING – The marking of the product shall be stopped under intimation to the
Bureau if, at any time, there is some difficulty in maintaining the conformity of their product to the
specification, or the testing equipment goes out of order. The marking may be resumed as soon as
the defects are removed under intimation to Bureau.
12.1 The marking of the product shall be stopped immediately if directed to do so by Bureau for
any reason. The marking may then be resumed only after permission by the Bureau. The
information regarding resumption of markings shall also be sent to the Bureau.
13.0 PRODUCTION DATA – The licensee shall send to BIS as per the enclosed
proforma-1 to be authenticated by a Chartered Accountant or by the manufacturer by giving an
affidavit/undertaking, a statement of quantity produced, marked and exported by him and the trade
value thereof at the end of each operative year of the licence.
Table 1………
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5. DOC: STI/13849/4
July 2005
IS 13849:1993
PORTABLE FIRE EXTINGUISHER, DRY POWDER
TYPE (STORED PRESSURE)
TABLE 1 LEVELS OF CONTROL
(Para 7 of the Scheme of Testing and Inspection)
TEST DETAILS LEVELS OF CONTROL
Cl. Requirement Test Methods No. Frequency Remarks
of
Clause Reference samples
4.1 Dry Powder 4.1 IS 4308 One Each No Testing is necessary if
(For BC) consignment material is ISI marked or
IS 14609 accompanied with test
(For ABC) certificate showing
conforming to relevant IS.
4.1 Capacity 4.1 IS 13849:1993 One Every one hour
production of
each capacity
4.2 Dry - IS 1747:1972 One Every one hour
Nitrogen/dry production
air
5.1 Material's Table 1 IS 13849:1993 One Each No Testing is necessary if
detail Consignment material is ISI marked or
accompanied with test
certificate showing
conforming to relevant IS.
6. Shape 6.0 -do- One Each
extinguisher
7.1 Construction 7.1 -do- One Every one hour At the time of design
7.1.1, -do- production approval and prototype
7.1.2 & -do- One
7.1.3 -do-
7.2 Gas space 7.2 & 10.5 -do- One Every hour
production
7.3 Neck ring 7.3 -do- 1% Each control Valve shall be as per Fig-1,
unit
7.4 Valve 7.4 -do- 1% -do-
7.5 Discharge 7.5.1 -do- 1% -do-
fittings to 7.5.4
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6. DOC: STI/13849/4
July 2005
IS 13849:1993
PORTABLE FIRE EXTINGUISHER, DRY POWDER
TYPE (STORED PRESSURE)
TABLE 1 LEVELS OF CONTROL
(Para 7 of the Scheme of Testing and Inspection)
TEST DETAILS LEVELS OF CONTROL
Cl. Requirement Test Methods No. Frequency Remarks
of samples
Clause Reference
8.1 & Anti-corrosive 8.1 IS 13849:93 One Each control .
8.2 treatment & 8.2 IS 3203 unit.
8.1.1 Adhesion of 8.1.1 IS 13849:93 -do- -do-
Plastic Lining
9. Painting 9.1, 9.2 IS 13849:93 Each fire
& 9. 3 extinguisher
10.1 Hydrostatic 10.1 -do- Five Each control
Pressure Test unit
10.2 Ultimate 10.2 -do- One Once in a week
failure test
10.3 Leakage Test 10.3 -do- Each fire
extinguisher
10.4 Drop Test 10.4 -do- One Every three
months
10.5.1 Performance 10.5.1 -do- One Each control
Test unit
11 Marking 11 -do- - Each Fire
Extinguisher
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