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UN HAZARD CLASSIFICATION CODES (HCC). C4 Slide 1. Introduction. Hazard Division. Compatibility Groups. Hazard Classification Codes. Denotes the type of hazard to be expected. Denotes what can be stored together to minimise risk. Facilitates safer storage and transportation.

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Presentation Transcript

Introduction
Introduction

Hazard Division

Compatibility Groups

Hazard Classification Codes

Denotes the type of hazard to be expected

Denotes what can be stored together to minimise risk

Facilitates safer storage and transportation


Introduction to hazard divisions hd
Introduction to Hazard Divisions (HD)

The Hazard Division here is 1.1

It is also shown with Compatibility Group, here it is ‘D’

Note that ammunition and its containers generally has many other types of markings as well.










Compatibility groups cg
Compatibility Groups (CG)

  • Identify commonalities between ammunition stores

  • More importantly – identify incompatible stores

  • The CG is added to the HD to form the complete

    • HAZARD CLASSIFICAITON CODE (HCC)

  • The practical use of these is when applying the ‘Mixing Rules’


Cg worked example
CG – Worked Example

Compatibility Group B:

Articles containing a primary explosive substance and not containing two or more effective protective features

Example: Detonators



Cg worked example1
CG – Worked Example

Compatibility Group H:

Article containing both explosive substance and white phosphorus

Example: Incendiary Grenades.



Cg worked example2
CG – Worked Example

Compatibility Group S:

Substance or article so packed or designed that any hazardous effects arising from accidental functioning are confined within the package

Example: Small Arms Ammunition

(Ball)



Cg worked example3
CG – Worked Example

Compatibility Groups E and F:

Question - What is the difference?


What are the mixing rules
What are the “Mixing Rules”

  • Compatibility Groups – identify types of stock

  • Theoretical ideal – store each type individually

  • Practically – this is not likely to be viable

  • Need to compromise: mix suitable groups

  • Aim – to reduce the risk / to improve safety

  • Mixing Rules state what can be stored with what





Questions

Questions?

C4 Slide 24


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