(a) acidic or basic compounds other than acetic acid, ammonium hydroxide, citric acid, fumaric acid, hydrochloric acid, lime, magnesium hydroxide, phosphoric acid, sodium carbonate, sodium hydroxide, sodium sulphide, sulphuric acid, sulphurous acid or tartaric acid; or

Nickel compounds in inhalable powder form: nickel monoxide, nickel dioxide, nickel sulphide, trinickel disulphide, dinickel trioxide

Mercury compounds (except mercury sulphide) are classified as toxic from 0, 5% and for some specific substances even less.

b. Optical components made from zinc selenide (ZnSe) or zinc sulphide (ZnS) with transmission in the wavelength range exceeding 3000 nm but not exceeding 25000 nm and having any of the following:

(46) Creosote is a complex mixture of over 200 chemical compounds, predominantly aromatic hydrocarbons, as well as phenolic and aromatic nitrogen and sulphur compounds.

Whereas all the necessary methods of analysis should be laid down as quickly as possible ; whereas two steps towards the attainment of this objective having already been taken through the definition of certain methods in Commission Directives 80/1335/EEC (3) and 82/434/EEC (4), the third step is to consist in the definition of methods for the determination of dichloromethane and 1,1,1-trichloroethane, the identification and determination of quinolin-8-ol and bis(8-hydroxyquinolinium) sulphate, the determination of ammonia, the identification and determination of nitromethane, the identification and determination of mercaptoacetic acid in hair-waving, hair-straightening and depilatory products, the identification and determination of hexach ...[+++]lorophene (INN), the tion of tosylchloramide sodium (INN), the determination of total fluorine in dental creams, the identification and determination of organomercury compounds, the determination of alkali and alkaline earth sulphides;