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Article 1.Member States shall take all necessary steps to ensure that...
Article 2.Member States shall bring into force the laws, regulations or...
DETERMINATION OF DICHLOROMETHANE AND 1,1,1-TRICHLOROETHANE
IDENTIFICATION AND DETERMINATION OF QUINOLIN-8-OL AND BIS(8-HYDROXYQUINOLINIUM) SULPHATE
4.15.1. Weigh 100 mg of quinolin-8-ol (4.1) into a 100 ml...
4.15.2. Weigh 100 mg of quinolin-8-ol into a 100 ml standard...
4.18. 2,6-dichloro-4-(chloroin ino)cyclohexa-2,5-dienone, 1 % (m/v) solution in ethanol (4.10).
4.21. Disodium dihydrogen ethylenediaminetetraacetate, 5 % (m/v) solution in water.
6.2.2. Solid samples or creams
6.2.2.2. Transfer the contents of the flask into a 100 ml...
6.2.2.3. In the case of emulsions that impede further treatment, mix...
6.2.2.4. Evaporate the collectec aqueous phases (6.2.2.2) or the eluate (6.2.2.3)...
6.2.2.5. Dissolve the residue in 6 ml of the sodium hydroxide...
6.2.2.6. Repeat the extraction three times with 8 ml of chloroform...
IDENTIFICATION AND DETERMINATION OF NITROMETHANE
IDENTIFICATION AND DETERMINATION OF MERCAPTOACETIC ACID IN HAIR-WAVING, HAIR-STRAIGHTENING AND...
4.1. Identification by spot tests
4.2. Identification by thin-layer chromatography
4.2.1.1. Mercaptoacetic acid (thioglycollic acid), 98 % minimum purity assayed by...
4.2.1.2. 2,2'-dithiodi(acetic acid), 99 % minimum purity assayed by iodometry.
4.2.1.3. 2-mercaptopropionic acid (thiolactic acid), 95 % minimum purity assayed by...
4.2.1.4. 3-mercaptopropionic acid, 98 % minimum purity assayed by iodometry.
4.2.1.5. 3-mercaptopropane-l,2-diol (1-thioglycerol), 98 % minimum purity assayed by iodometry.
4.2.1.6. Thin-layer plates, silica gel, ready prepared, 0,25 mm thickness.
4.2.1.7. Thin-layer plates, aluminium oxide, Merck F 254 E or equivalent....
4.2.1.8. Hydrochloric acid, concentrated, d4 20 = 1,19 g/ml.
4.2.1.15. Platinum tetrachloride, 0,1 % (m/v) solution in water.
4.2.1.18.1. Mercaptoacetic acid (4.2.1.1), 0,4 % (m/v) solution in water.
4.2.1.18.2. 2,2'-dithiodi(acetic) acid (4.2.1.2), 0,4 % (m/v) solution in water.
4.2.1.18.3. 2-mercaptopropionic acid (4.2.1.3), 0,4 % (m/v) solution in water.
4.2.1.18.4. 3-mercaptopropionic acid (4.2.1.4), 0,4 % (m/v) solution in water.
4.2.1.18.5. 3-mercaptopropane-l,2-diol (4.2.1.5), 0,4 % (m/v) solution in water.
IDENTIFICATION AND DETERMINATION OF HEXACHLOROPHENE
QUANTITATIVE DETERMINATION OF TOSYLCHLORAMIDE SODIUM (INN) (CHLORAMINE-T)
DETERMINATION OF TOTAL FLUORINE IN DENTAL CREAMS
5.2. Gas chromatograph fitted with a flame ionization detector.
5.5. Volumetric flasks, 100 and 250 ml, made of polypropylene.
5.6. Centrifuge tubes (glass); 20 ml with teflon lined screw-caps, Sovirel...
5.7. Pipettes, adjustable to deliver volumes of 50 to 200 μl,...
5.8. Distillation apparatus, fitted with a three-ball Schneider column or an...
6.1.1. Select a dental-cream tube not previously opened, cut open the...
6.1.2. Weigh accurately 150 mg (m) of sample into a centrifuge...
6.1.4. Add dropwise 5 ml of hydrochloric acid (4.3) and homogenize...
6.1.5. Add, by pipette, 0,5 ml of chlorotriethylsilane/internal standard solution (4.9)...
6.1.6. Close the tube with the screw-cap (5.6) and mix for...
6.1.7. Centrifuge 10 minutes at such a speed as to produce...
6.1.8. Repeat the injection, calculate the average peak area ratio (ATEFS/ACH)...
6.1.9. Calculate the total fluorine content of the sample (in per...
IDENTIFICATION AND DETERMINATION OF ORGANOMERCURY COMPOUNDS
SCOPE AND FIELD OF APPLICATION
DETERMINATION OF ALKALI AND ALKALINE EARTH SULPHIDES
6.1. Entrainment of the sulphides
6.1.1. Take a package which has not been previously opened. Weigh...
6.1.3. Fit a dropping funnel, the dip tube and the outlet...
6.1.4. Pass nitrogen (4.8) through for 15 minutes, at a rate...
6.1.7. Turn the nitrogen (4.8) stream on again when nearly all...
6.1.8. Cease heating after 30 minutes. Allow the flask (5.2) to...
6.2.1. Filter the cadmium sulphide through a long-stem funnel (5.4).
6.2.2. Rinse the conical flasks (5.3) first with the ammonia solution...
6.2.3. Complete the washing of the precipitate with 100 ml of...
6.2.4. Place the paper filter in the first conical flask that...
6.2.5. Determine the excess iodine using the sodium thiosulphate solution (n2)...
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