Appendix ‘A’

Any works of that part of works in which-

1. the manufacture, manipulation or recovery of any of the following is carried on;

(a) Sodium, potassium, iron, aluminium, cobalt nickel, copper, arsenic, antimony, chromium, zinc,

selenium, magnesium, cadmium, mercury, beryllium and their organic and inorganicsalts, alloys,

oxides and hydroxides.

(b) Ammonia, ammonium hydroxide and salts of ammonium;

(c) the organic or inorganic compounds of sulphurous, sulphuric, nitric, nitrous, hydrochloric,

hydrofluoric, hydroiodic, hydrosulphuric, hydrobromic, boric;

(d) Cyanogen compounds, cyanide compounds, cyanate compounds;

(e) Phosphorous and its compounds other than organophosphorus insecticides;

(f) Chlorine

2. Hydrogen sulphide is evolved by the decomposition of metallic sulphide, or hydrogen sulphide is used

in the production of such Sulphides.

3. bleaching power is manufactured or chlorine gas is produced in chlor-alkali plants;

4. (i) gas tar or coal tar or bitumen or shale oil asphalt or any residue of such tar is distilled or used in any

process of chemical manufacture;

(ii) tar based synthetic coloring matters or their intermediate are produced;

5. nitric acid is used in the manufacture of nitro compounds;

6. explosives are produced with theuse of nitro compounds;

7. aliphatic or aromatic compounds or their metallic and non-metallic derivatives or substituted

derivatives, such as chloroform ethylene glycol, formaldehyde, benzyl chloride, phenol, methyl ethyl

key tone peroxide, cobalt carbonyl, tungsten, carbide etc. are manufactured or recovered.