Skip to main content

Improvised Explosive Devices (IEDs)

IEDs are not manufactured by any fixed standards, therefore their materials of construction, composition of ingredients varies widely. Everything depends upon the availability of resources, knowledge and skill of user.
Explosives composition
 Various ingredients include the various combinations of oxidizer and fuel. For example:

1) Potassium chlorate + Arsenic sulphide + missiles (iron nails, glass pieces , stone chips etc.,) - Throw-down device.
2) Potassium chlorate + sugar initiated by conc., Sulphuric acid - Acid bomb

Improvisation can be made on container, main charge, initiation device and projectiles depending upon the availability, skill, motive and means. For example:

Container; Tiffin carrier, transistor, cement pipe, iron pipe, telephone, Television, toys, cell-phone, computer, scooter, cycle, the articles which are easily available to the anti social elements. ( ref1 ,2&3)
Main charge : High explosives, Low explosives or combinations.
Initiation device: Time device, remote device and impact device, battery operated etc.
Projectile & Missiles: Iron nails, glass pieces, stone ships, ball bearing, generally used in throw down improvised devices.
Factory made ammunition:
In case of factory made ammunition, these are manufactured according to standard specifications. The ammunition bear factory name, batch/ lot no., year of manufacture etc.
Some of the explosive composition commonly used in factory made ammunition are listed below.
Composition B (60% RDX, 40% TNT plus wax)
Cyclotol (60-75 % RDX, 25-40% TNT)
Torpex 2 (42% RDX, 40% TNT, 18% Al)
Composition C4 (91% RDX, 9% plasticisers)
Picratol (TNT + ammonium picrate)
Tritonal (TNT +  aluminium powder)
C1: RDX + Plasticizer
C2:   RDX+TNT +DNT + MNT +NC+Dimethyl Formanide
C3: RDX+TNT+DNT+MNT + Tetryl+NC

Comments

Popular posts from this blog

How to Sketch a Molecule from Scratch: Part-1

It is often necessary in various scientific disciplines to prepare sketches of molecules for project reports, research papers and teaching assignments, etc. Drawing a sketch also helps in developing the concepts in science, for example, the bonding patter in organic molecules, their valencies, etc. Educators and researchers regularly use sketches in their daily work. With the development of computing computer based sketching has become more  common and more and more people are using computers for everything for drug design, manufacturing and publications of results. Several tools are available for sketching. Here, we will see how small molecules can be drawn using an exciting and free software ‘ACDChem Sketch’ from ACD Labs. Lets begin by drawing a simple molecule ‘Indole’. The pictures below are self explaining.



You can build a larger molecule by adding side chains at the desired positions on the main Indole ring. The method is shown below.

Apart from building simpler molecule like indole…

FORENSIC JOBS: TAMIL NADU PUBLIC SERVICE COMMISSION (JUNIOR SCIENTIFIC OFFICER)

JOBS IN FORENSIC SCIENCE
POST: JUNIOR SCIENTIFIC OFFICER
NOTIFICATION NO: 11/2016
ADVERTISEMENT NO.: 441
DATED: 29.07.2016



For Detailed Information Please Visit the following links:
www.tnpscexams.net 
www.tnpscexams.in
www.tnpsc.gov.in

FORENSIC SCIENCE JOBS 2016: UPSSSC Recruitment 2016

UPSSSC Recruitment 2016 Government of UP has advertised 613 posts of various positions including scientific Assistants, Lab officers, etc. in different divisions such as Biology, Chemistry, Physics, Computer Forensic, etc. The details of the advertisement can be obtained at the following link.
Instructions for filling up the form can be obtained from here. Total Vacancies: 613

Name of the Exam: Combined Lower Subordinate Service Competitive Exam 2016 (II)

Name of the Post:
1. Junior District Information Officer (Urdu): 17
2. Regional Exhibition Officer: 08
3. Librarian: 74
4. Hostel Superintendent: 07
5. Proof Reader: 01
6. Mobility Teacher: 07
7. Assistant Store Keeper: 86
8. Inspector Legal Measurement Science: 26
9. Artist: 52
10. Investigator: 05
11. Exercise Trainer: 01
12. Asst Superintendent: 14
13. Library Assistant: 01
14. Supervisor: 72
15. Technical Supervisor: 05
16. Industrial Cooperative Supervisor: 42
17. Laboratory Assistant (Physics): 11
18. Laboratory Assistant (Chemistry): 08
19. Laborator…