IS 15447-1: Commercial Blasting Explosives, Part 1: Nitroglycerine Based Explosives

2004·1.2 MB·English

by  Bureau of Indian Standards

इंटरनेट मानक
Disclosure to Promote the Right To Information
Whereas the Parliament of India has set out to provide a practical regime of right to
information for citizens to secure access to information under the control of public authorities,
in order to promote transparency and accountability in the working of every public authority,
and whereas the attached publication of the Bureau of Indian Standards is of particular interest
to the public, particularly disadvantaged communities and those engaged in the pursuit of
education and knowledge, the attached public safety standard is made available to promote the
timely dissemination of this information in an accurate manner to the public.
“जान1 का अ+धकार, जी1 का अ+धकार” “प0रा1 को छोड न’ 5 तरफ”
Mazdoor Kisan Shakti Sangathan Jawaharlal Nehru
“The Right to Information, The Right to Live” “Step Out From the Old to the New”
IS 15447-1 (2004): Commercial Blasting Explosives, Part 1:
Nitroglycerine Based Explosives [CHD 26: Explosives and
Pyrotechnics]
“!ान $ एक न’ भारत का +नम-ण”
Satyanarayan Gangaram Pitroda
““IInnvveenntt aa NNeeww IInnddiiaa UUssiinngg KKnnoowwlleeddggee””
“!ान एक ऐसा खजाना > जो कभी च0राया नहB जा सकता हहहहै””ै”
Bhartṛhari—Nītiśatakam
“Knowledge is such a treasure which cannot be stolen”

IS 15447 (Part 1): 2004
WwRnl=m
fafw=
n m faw\lob — n
l~llxm

n
m 1 W+t’fkiwf am’lR?rfaw’ikm
Indian Standard
COMMERCIAL BLASTING EXPLOSIVES —
SPECIFICATION
PART 1 NITROGLYCERINE BASED EXPLOSIVES
Ics 71.100.30

0 BIS2004
BUREAU OF INDIAN STANDARDS
MANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG
NEW DELH1 110002
Mqy2004 Price Group 3
Explosives and Pyrotechnic Sectional Committee, CHD 26
FOREWORD
This Indian Standard (Part 1) was adopted by the Bureau of Indian Standards, after the draft finalized by the
Explosives and Pyrotechnic Sectional Committee had been approved by the Chemical Division Council.
Anexplosive isacompound oramixture ofcompounds, which, wheninitiated byheat,impact, friction orshock,
undergoes averyrapid self-propagating exothermic reaction.Thisreaction produces more stableproducts, usually
gases that exert tremendous pressure asthey expand athigh temperature.
Explosives canbeclassified intotwobroad groups, namely, theindustrial explosives andthemilitary explosives.
Industrial explosives are also known ascommercial explosives and include dynamites, slurries, emulsions and
blasting powders. Military explosives are mainly used as ammunition in small arms as well as field guns and
rockets.
The nitroglycerine (NG) based explosives come under the category of industrial explosives. They were first
introduced under the trade name of dynamites by Alfred Nobel, which wasbasically nitroglycerine absorbed in
Kieselguhr.
The nitroglycerine (NG) based explosives can be used at ambient and sub-zero temperatures. Under certain
conditions, the nitroglycerine starts exuding from the explosive composition, creating safety hazards in the
handling and may cause severe headaches. This is particularly so, when nitroglycol is used in the explosive
mixture.
The nitroglycerine (NG) content in explosives varies from as little as 5 percent to ashigh as 90 percent of the
composition, according to the velocity of detonation, the energy release and the water resistance required for
specific applications.
This standard isthefirst inthe series ofIndian Standards oncommercial blasting explosives. The other standards
inthe series will follow.
There isno 1S0 specification on this subject. This standard has been formulated based on the data available for
indigenous product.

The Committee responsible for formulation of this standard isgiven inAnnex B.

For the purpose of deciding whether aparticular requirement of this standard iscomplied with, the final value,
observed or calculated, expressing the result of a test or analysis, shall berounded off in accordance with
IS2:1960 ‘Rulesfor rounding off numerical values(revised)’. The number of significant places retained inthe
rounded off value should bethe same asthat of the specified value in this standwd.
IS 15447 (Part 1): 2004
Indian Standard
COMMERCIAL BLASTING EXPLOSIVES —
SPECIFICATION
PART 1 NITROGLYCERINE BASED EXPLOSIVES
1 SCOPE 4 REQUIREMENTS
This standard (Part 1) prescribes requirements and 4.1 The nitroglycerine (NG) based commercial
methods of sampling and test for commercial blasting blasting explosives shall conform to the requirements
explosives, Nitroglycerine (NG) based explosives. prescribed inTable 1.
2 REFERENCES 4.2 Shelf Life
The standards listed below contain provisions, which The nitroglycerine (NG) based commercial blasting
through reference in this text, constitute provisions of explosives shall have aminimum of six month’s shelf
this Indian Standard. At the time of publication, the life.
editions indicated were valid.Allstandards aresubject
to revision and parties to agreements based on this 5 PACKJNGAND MARKING
standard are encouraged to investigate the possibility
of applying the most recent editions of the standards 5.1 Packing
indicated below: The nitroglycerine (NG) based commercial blasting
explosives shall be packed in suitable packages
ISNo. 7itle conforming totherequirements prescribed inIS 10212
(Part1).
1260(Part 1): Pictorial marking for handling and
1973 Iabellingofgoods:Part 1Dangerous Thepacking shallfurther conform tothe provisions of
goods (@f revision)
Indian Explosive Rule, 1983.
6609 Methods of test for commercial
5.2 Marking
blasting explosive, and accessories:
Each package shall be legibly and indelibly marked
(Part 2/See 1): Explosives, Se ction 1 Explosives,
with the following information :
1973 general
a) Indication ofthe source of manufacture,
(Part 2/See 2): Explosives, Section 2 Explosives, b) Name oftheexplosives,
1974 permitted c) LotNo. toenable thebatch ofmanufacture to
betracedfrom records, and
(Part 2/See 3): Explosives, Section 3 Explosives, d) Month andyear of manufacture.
1980 slurry
5.2.1 Each package shall also be marked with
10081:1981 Glossary of terms relating to
appropriate explosive symbol as specified in IS 1260
commercial explosive, pyrotechnics
(Part 1).
and blasting practices
TheMarking shallfurther conform totheprovisions of
10212(Part 1): Generalrequirementsforpackagesof
Indian Explosive Rule, 1983.
1986 commercial explosives: Part 1
commercial high explosives (first 5.2.2 Inadditiontotheabove,thefollowing cautionary
revision) note shall also appear on the label in red ink:
‘HIGHLY EXPLOSIVE. HANDLE WITH
3 TERMINOLOGY
UTMOST CARE. DONOTDROPORSUBJECT
For the purpose of this standard, the definition given
TOHEAZFRICI’IONORSHOCK DGNGTBRING
in IS 10081 shall apply.
ANYSPARKORFIRENEARTHE PACKAGE

1
IS 15447 (Part 1) :2004
Table 1 Requirements of Nitroglycerine Based Commercial Blasting Explosives
(Clause 4.1)
S1No. Characteristic Requirement Method of Tes~ Ref to
(1) (2) (3) (4)
i) Abel heat test Not less than 10minwhentested at 71.6°C 3.t of 1S6609 (Part 2fSec 1)
ii) Freezing and thawing test Sample not to show signs of gel segregation 3.2 of IS 6609 (Part 2/See 1)
of exudation of nitroglycerine
iii) Liquefaction test Reduction in height of the sample shall not 3.3 of 1S6609 (Part 2/See 1)
be more than one-fourth of the original.
The upper cut surface shall retain its features
and sharpness of edges
iv) Impact sensitivity Not less than 40 cm with 1kg hammer 3.4 of IS 6609 (Part 2/See I)
v) Frictionalimpactsensitivity Not less than 140cm with 1kg torpedo 3.5 of IS 6609 (Part 2/See 1)
vi) Air gap sensitivity Not less than5cm 3.6 of IS 6609 (Part 2/See 1)
vii) Velocity of detonation Gel : 2200 andabove 3.7 to 3.9 of IS 6609 (Part2/See 1)
unconfined, nr/s Semi gel : 2000 andabove
Powder : 1000 andabove
viii) Water proof~ess,h Gel :3 3.10 of IS 6609 (Part2/See 1)
Semi gel :4
ix) Powder, percent BG Permitted:
P] -50 and above
P3 -40 and above
P5 -35 and above 3.11 of IS 6609 (Part 2/See 1)
}
Non-permitted:
40 to 90 percent as agreed to between
the user and the manufacturer
x) Gallery test P]: Series 1 - 13/26
Series II - Nil/5
Series III- Nil/5
P3: Series I - 13/26
SeriesII - Nil/5 3 of IS 6609 (Part 2/See 2)
Series III- Nil/5
P5: Series I -NiI/20
Series H -Nil/5

Series III -Nil/5 1

xi) Continuity of detonation (COD) Topass the continuity test 4 of Is 6609 (Part x%x 2)
xii) Critical diameter, Min, mm
150-200 mm long and having a diameter )
of 32-37 mm shall get initiated with No. 6
detonator (permitted)
Non- Permitted: 4 of IS 6609 (part 2/See3)
150-200 mm long and having a diameter of
25 mmshall getinitiated withNo.6 detonator
(permitted)
I
xiii) Density, gjcm~ Permitted:
Gel :1.50 + 0.1
Semigel :1.20 + 0.1
Powder :1.10 + 0.1 Annex A
Non-permitted:
Gel :1.4 +0.1
Semi gel. :1.2+ 0.1
Powder :1.1+0
I
NOTES
1 Characteristics against S1No. (x) are applicable only for permitted explosives.
2 Characteristics against S1No. (iii) and (viii) arc not applicable to powder varieties ofexplosives.
3 PI is equivalent to P (o) — ordinary.
P3 is equivalent to P (eqe) — equivalent to sheath.
P5 isequivalent to P (s)— solid bktsting.

2
IS 15447 (Part 1) :2004
5.2.3 BIS Certi$cation Marking
S1 Test No. of Cartridges
The product may also be marked with the Standard No. to be Tested
Mark.
i) Abel heat test 2
5.2.3.1 The use of the Standard Mark isgoverned by ii) Freezing and thawing test 2
the provisions of the Bureau of Indian Standards Act, iii) Liquefaction test 2
1986and the Rules and Regulations made thereunder. iv) Impact sensitivity 1
The details of conditions under which the Iicence for v) Frictional impact sensitivity 1
the use of Standard Mark may be granted to vi) Air gap 2
manufacturers orproducers may be obtained from the vii) Veloeityof detonation unconfined, rrds 2
Bureau ofIndian Standards. viii) Waterproofness 2
ix) Power,percent, BG 2
6 SAMPLING x) Continuity of detonation (COD) 4
xi) Critical diameter 1
xii) Density 2
6.1 Lot
Cases of nitroglycerine based commercial blasting N~E —Tests against (i), &l)and ~li) w to be done on
explosives of same variety (Permitted or Non- every lot. Other tests may be done as and when needed.
permitted), sametype (based onpower) and samesize
belonging to different batches grouped together to 6.3 Gallery ‘fkat
constitute a lot. Gallery test is a type test and it is not required to be
carried out on every lot if the particular type of
6.1.1 Cartridges of nitroglycerine based commercial composition has been tested by Central Mining
explosives constituting sample shall be drawn from Research Institute and approved by Director General
each lot separately for deciding the conformity of the ofMines Safety.
lot to therequirements of the specification.
6.3.1 Samples for gallery test shall be fixed based on
the requirements furnished by the Central Mining
6.1.2 Preservation
Research Institute from time totime.
All samples shall be kept in water proof container/
polythene cover tillthey aretakenfortestingtoprotect 6.4 Large Diameter Explosives
them from moisture and other atmospheric changes.
6.4.1Number ofexplosives cartridges tobeselected at
random from the lot shall depend on the lot size and
6.2 Small Diameter Explosives shall be in accordance with Table 3.
6.2.1 Number ofexplosives cartridges tobeseleetedat

Table 3 Scale ofSampling of Nitroglycerine
random from the lot shall depend on the lot size and

Based Explosives
shallbe in accordance with theTable 2.
Table 2 Scale of Sampling of Nitroglycerine S1No. Lot !Mze SampleSize
(No.of Cartridges)
Based Explosives
i) Up to 3.0 MT 6
S1 Lot Size SampleSize ii) More than 3.0 MT
No. (No. of Cartridges) Up to6.0 MT 8
iii) More than 6.0 MT
i) Up to 3.0 MT 30 Up to 10.0MT 10
ii) More than 3.0 MT 40
N0113—All the tests except velocity of detonation shall
Up to 6.0 MT
be in accordance with 6.2.2 by preparing hand cartridges
iii) More than 6.0 MT 50
using explosive from large diameter cartridge samples.
Up to 10.0MT
Veloeityof detonation shall be tested using full cartridges.
Extrasampletakenshallbeutilizedforrepeattestofvelocity
NOTE — Extra cartridges taken in case of larger lot size
of detonation in case of large size lots.
shallbeuseforrepeatingthefollowing testswithaddltionat
cartridges for conformation of uniformity.
6.5 Criteriafor Conformity
6.2.2 Number of Tests For deciding the conformity of the lot to the
The number ofcartridges tobedrawn fromeachlotfor requirement ofthespecification, thetestresults ofeach
carrying out various tests shall be asgiven below: characteristics shall meet the corresponding
requirement specified inthe relevant clauses.

3
IS 15447 (Part 1) :2004
ANNEX A
[Table 1,S1No. (xiii)]
METHOD FOR DETERMINATION OF DENSITY OF EXPLOSIVE MATERIAL
A-l APPARATUS A-2 PROCEDURE
A cylindrical breaker having sir-tight cover. Cover Measure the weight of the empty dry apparatus. Fill
has outside diameter equal to inside diameter of the the apparatus completely (up to the brim) with water,
cylindrical beaker. The diameter of cover reduces allowsometimetoescapeairbubbles, ifatallformed,
gradually tofinally5mminnerdiameter. There should and then measure the total weight of the apparatus.
be about 5 cm length of the narrow stem in the upper Now, empty the apparatus, and take again the weight
part of the cover. ‘l%eapparatus shall be asshown in measurement oftheapparatus. Cutaslice ofexplosive
Fig. 1. using copper knife and place it (after removing its
wrapper) in the empty apparatus. Measure the weight
NOTE — Other dimensions are recommendatory. of the apparatus with explosive. Completely fill the
remaining empty spaceoftheapparatus with water and
allow the air bubble to escape. Measure the weight of
the apparatus containing explosive and water.
A-3 CALCULATION PROCEDURE !-
A-3.1 Density of explosive, in g/ml, De = (&f,-M,)/
{(M,-M,)--(M,-M,)}.
mass,ing,ofthedry empty apparatus,
mass, ing, apparatus filled with water up to
thebrim,
mass, ing,ofemptied apparatus,
mass, in g, of emptied apparatus with
STANDARD explosive sample, and
JOINT TQ
mass, in g, of water filled apparatus with
MAKE
explosive sample.
vv;w;:-
A-3.2 Calculation UsingActual Density ofWater

A-3.2.1Acturddensityofusedwater,DW=“ ;“’ ghnl.
where
M2=mass,ing,ofapparatusfilled withwaterupto
brim;
Ml= mass,ing,ofdry empty apparatus; and
V = volume, inml, ofthe apparatus.
A-3.2.2 Density ofexpldsive, ing/ml,
(M, -M3)
‘e=
[V--{(M,-A44)/Dw]]
where
M= mass, ing,ofempty apparatus;
M~= mass,ing,ofemptyapparatuswithexplosive
4
sample;
M= mass, in g, of water filled apparatus with
5
All dimensions in millimetres. explosive sample;
v= volume, inml, of the apparatus; and
FIG.1APPARATUFSORDETERMINATIOONFDENSITY
Dw = actual density, in g/ml, of used water
(seeA-3.2.1).
IS 15447 (Part 1): 2004
ANNEX B
(Forewoni)
COMMITTEE COMPOSITION
Explosives and Pyrotechnic Sectional Committee, CHD 26
Organization Representative(s)
Chief Controller of Explosives, Nagpur Mm R.H.BHALMCA(CRhairman)
SHRIK.N.GHOSH(Alternate)
Central Mining Research Institute, Dhmbad DRM.M.BHAITACHARYA
SHSUR.R. SINGH(Alternate)
Central Mine Planning & Design Representative RmsmsNrAnvE
Institute Limited, Ranchi
Coal India Limited, Kolkata SmuC.P.BANSAL
SHR[D. K.JASN(Alternate)
Consumer Guidance Society of India, Mumbai SHSUN.G.WAriUI
SHRSMARITENUTALWAN(SAlternate)
Development Commissioner (Small Scale Industries), SHSUN. K. GUHA
New Delhi SmuY.S.BHAINAOAR(Alternate)
Directorate General of Mines Safety, Dharrbad D~R, MSE
DEPUSYDIRECtOR(Alternate)
Defence Research & Development Organization (DRDO), RImmINrATrvE
CEES, Ministry of Defence, Delhi.
Directorate General Ordnance Factories (DGOF), SmaC.MRtDHA
Ministry of Defence, Kolkata SHRSP.VZLUNAV(ASLlternate)
Directorate General of Quality Assurance (DGQA), SsnuR.P.KHANNA
Ministry of Defence, New Delhi. DRA.K.SARANG(AIlternate)
Directorate of Standardization (DSTD), LTCoLS.K.LOHANS
Ministry of Defence, New Delhi SmuS.B.MaNRu(Alternate)
Federation of Corrugated Box Manufacturers of India, Mumbai Smalkmt KIUAWALA
Cm N.K.DAWAR(Alternate)

IBP Co Ltd, New Delhi StintK.L.PAm

DRS.B.PATU(Alternate)
IDL Industries Limited, Hyderabad DRA.K.MUKHERME
SHraM.RAMAKSUSH(ANlAternate)
Indian Institute of Packaging, Mumbai SHRAI .AJossn
SsnuMANSKKOHU(Alternate)
Khadl and Village Industries Commission, Mumbai SHRJS.L.CHOUDHGRS
SmuG.K.GHOSHjAftemute)
National Mineral Development Corporation Ltd. Hyderabad SHRSAD..TRDIATHI
SmuA.K.GGSTA(Alternate)
Noble Explochem Ltd, Nagpur SmuK.VSSWANNMAN
Standard Fkeworks, Sivakasi SHSGAC.mnmmnw
SsnuC.SGRBASINGH(Alternate)
TarnilNadu Industrial Explosives Lhnited, Vellore SHRKS.A.ANNAMALAI
SmJJasmHJOHN(Afternate)
The Tamil Nadu Fireworks &Amores Manufacturers
Association, Sivakasi SECRESAR(AYlternate)
The All India Chamber of Match Industries, Sivakaai
SacsrrrAR(AYlternate)
WIMCO Limited, Mumbai SHRJI.VASDYANAIHAN

5