Chemists use a variety of ways to define what they mean by an acid. The definition which is most readily understood, due to is that an acid is a chemical which produces hydrogen ions when dissolved in water.
Strong acids, such as sulphuric acid, nitric acid or hydrochloric acid are strongly corrosive, and can cause serious burns or be fatal if swallowed.
Weak acids, such as citric acid or vinegar (a dilute aqueous solution of acetic acid) are much less hazardous, and are often a natural or added component in foods.
ADR
The European Agreement concerning the International Carriage of Dangerous Goods by Road, or ADR, governs transnational transport of hazardous materials. Launched in Geneva on 30 September 1957 under the aegis of the United Nations' Economic Commission for Europe, it first took effect on 29 January 1968. A set of new Amendments entered into force on 1 January 2007, and consequently, a fifth consolidated restructured version was published as document ECE/TRANS/185, Vol.I and II (ADR 2007).
In the appendixes of the ADR is shown, whether a material is a dangerous one and if so, whether and under which conditions it can be transport on road.
Further information you find under:
http://www.unece.org/trans/danger/publi/adr_e.html
Ammunition
Ammunition includes all kinds of bombs, grenades, rockets, mines,
projectiles, and other similar devices or contrivances. Ammunition is a Class 1
explosive and is non mailable.
