Fourth Commission Directive of 11 October 1985 on the approximation of the laws of the Member States relating to methods of analysis necessary for checking the composition of cosmetic products (85/490/EEC)
EU Directive 1985/490 · Adopted 11 October 1985 · Extends to United Kingdom
Fourth Commission Directive
of 11 October 1985
on the approximation of the laws of the Member States relating to methods of analysis necessary for checking the composition of cosmetic products
(85/490/EEC)
THE COMMISSION OF THE EUROPEAN COMMUNITIES,
Having regard to the Treaty establishing the European Economic Community,
Whereas Directive 76/768/EEC provides for the official testing of cosmetic products with the aim of ensuring that the conditions laid down by Community provisions concerning the composition of cosmetic products are satisfied;
Whereas all the necessary methods of analysis should be laid down as quickly as possible; whereas three steps towards the attainment of this objective having already been taken through the definition of certain methods in Commission Directive 80/1335/EECf3, 82/434/EECf4 and 83/514/EECf5, the fourth step is to consist in the definition of methods for the identification and determination of glycerol 1-(4-aminobenzoate), the determination of chlorobutanol, the identification and determination of quinine, the identification and determination of inorganic sulphites and hydrogen sulphites, the identification and determination of chlorates of the alkali metals and the identification and determination of sodium iodate;
Whereas the measures provided for in this Directive are in accordance with the opinion of the Committee on the Adaptation of Directive 76/768/EEC to Technical Progress,
HAS ADOPTED THIS DIRECTIVE:
Annotations to the whole text
Footnotes
Contents
- 1Article 1
- 2Article 2
- 3Article 3
- Signature
- Annex
- IDENTIFICATION AND DETERMINATION OF GLYCEROL l-(4-AMINOBENZOATE)
- IDENTIFICATION
- 1SCOPE AND FIELD OF APPLICATION
- 2PRINCIPLE
- 3REAGENTS
- 3.1Division 3.1
- 3.2Division 3.2
- 3.3Division 3.3
- 3.4Standard solutions:
- 3.5Division 3.5
- APPARATUS
- 4.1Division 4.1
- 4.2Division 4.2
- 4.3Division 4.3
- PROCEDURE
- 5.1Sample preparation
- 5.2Thin layer chromatography
- Development
- 5.3.1Division 5.3.1
- 5.3.2Spray the completely dried plate with the solution 3.3 (a).
- DETERMINATION
- 1SCOPE AND FIELD OF APPLICATION
- 2DEFINITION
- 3PRINCIPLE
- 4REAGENTS
- 4.1Division 4.1
- 4.2Division 4.2
- 4.3Division 4.3
- 4.4Division 4.4
- 4.5Division 4.5
- 4.6Division 4.6
- 4.7Division 4.7
- 4.8Division 4.8
- 4.9Division 4.9
- 4.10Eluant: phosphate buffer solution (4.9)/methanol (4.1) 61/39(v/v)
- 4.11Division 4.11
- 4.12Division 4.12
- 4.13Division 4.13
- 4.14Standard solutions: prepare four standard solutions by dissolving in 100 ml eluant (4.10) according to the following table:
- 4.15Division 4.15
- 4.16Division 4.16
- 4.17Division 4.17
- APPARATUS
- 5.1Division 5.1
- 5.2Division 5.2
- 5.3Division 5.3
- 5.4Division 5.4
- PROCEDURE
- Sample preparation
- 6.1.1Division 6.1.1
- 6.1.2Place the beaker in the ultrasonic bath (5.4) for 20 minutes to produce a suspension. Transfer the suspension thus obtained quantitatively into a 100 ml standard flask with not more than 75 ml of eluant (4.10).
- 6.1.3Division 6.1.3
- Chromatography
- 6.2.1Division 6.2.1
- 6.2.2Division 6.2.2
- 6.2.3Division 6.2.3
- Calibration curve
- 6.3.1Division 6.3.1
- 6.3.2Division 6.3.2
- 6.3.3Division 6.3.3
- CALCULATION
- 7.1From the calibration curve obtained in 6.3 read off the mass ratios (RP1, RP2) corresponding to the ratios between the areas of the peaks calculated in 6.2.3 where
- 7.2From the mass ratios obtained in this way calculate the alpha-monoglyceryl 4-aminobenzoate and ethyl 4-aminobenzoate contents, as mass percentages (% m/m) with the formulae:
- REPEATABILITY
- 8.1Division 8.1
- 8.2Division 8.2
- NOTES
- 9.1Division 9.1
- 9.2Division 9.2
- DETERMINATION OF CHLOROBUTANOL
- 1SCOPE AND FIELD OF APPLICATION
- 2DEFINITION
- 3PRINCIPLE
- 4REAGENTS
- 4.1Division 4.1
- 4.2Division 4.2
- 4.3Division 4.3
- 4.4Division 4.4
- 4.5Division 4.5
- APPARATUS
- 5.1Division 5.1
- 5.2Division 5.2
- PROCEDURE
- 6.1Preparation of sample
- Gas chromatography conditions
- 6.2.1The operating conditions must yield a resolution factor R ≥ 1,5.
- 6.2.2As examples, the following operating conditions provide the required resolution:
- 6.3Standard curve
- 6.4Division 6.4
- CALCULATION
- 7.1Division 7.1
- 7.2The content of chlorobutanol in the sample is calculated according to the formula:
- 8REPEATABILITY
- Note
- IDENTIFICATION AND DETERMINATION OF QUININE
- IDENTIFICATION
- 1SCOPE AND FIELD OF APPLICATION
- 2PRINCIPLE
- 3REAGENTS
- 3.1Division 3.1
- 3.2Division 3.2
- 3.3Division 3.3
- 3.4Division 3.4
- 3.5Division 3.5
- 3.6Division 3.6
- 3.7Division 3.7
- 3.8Division 3.8
- 3.9Division 3.9
- 3.10Division 3.10
- APPARATUS
- 4.1Division 4.1
- 4.2Division 4.2
- 4.3Division 4.3
- PROCEDURE
- 5.1Preparation of the sample
- 5.2Thin layer chromatography
- Development
- 5.3.1Division 5.3.1
- 5.3.21Division 5.3.21
- 5.3.3Division 5.3.3
- 5.3.4Observe under the light from a UV lamp adjusted to a wavelength of 360 nm. Quinine appears as a fluorescent intense blue spot.
- 5.3.5For further confirmation that quinine is present, the plate is exposed for approximately one hour to bromine vapour (3.7). The fluorescence disappears. When the same plate is exposed to ammonia vapour (3.8), the spots reappear with a brown colour, and when the plate is again examined under UV light at 360 nm a yellowish fluorescence can be observed.
- DETERMINATION
- 1SCOPE AND FIELD OF APPLICATION
- 2DEFINITION
- 3PRINCIPLE
- 4REAGENTS
- 4.1Division 4.1
- 4.2Division 4.2
- 4.3Division 4.3
- 4.4Division 4.4
- 4.5Division 4.5
- 4.6Division 4.6
- 4.7Division 4.7
- 4.8Division 4.8
- 4.9Division 4.9
- 4.10Eluant: orthophosphoric acid (4.7) /potassium dihydrogenorthophosphate (4.8) /tetramethylammonium bromide (4.9)/water/acetonitrile (4.1) 10/50/100/340/90 (v/v/v/v/v).
- 4.11Division 4.11
- 4.12Division 4.12
- APPARATUS
- 5.1Division 5.1
- 5.2Division 5.2
- 5.3Division 5.3
- 5.4Division 5.4
- 5.5Division 5.5
- PROCEDURE
- 6.1Sample preparation
- 6.2Chromatography
- 6.3Calibration curve
- CALCULATION
- 7.1Division 7.1
- 7.2The concentration of anhydrous quinine in the sample, as a percentage by mass (% m/m), is obtained by the following formula:
- 8REPEATABILITY
- IDENTIFICATION AND DETERMINATION OF INORGANIC SULPSCOPE AND FIELD OF APPLICATION
- IDENTIFICATION
- 1PRINCIPLE
- 2REAGENTS
- 2.1Division 2.1
- 2.2Division 2.2
- APPARATUS
- 3.1Division 3.1
- 3.2Division 3.2
- PROCEDURE
- 4.1Division 4.1
- 4.2Division 4.2
- 4.3Division 4.3
- DETERMINATION
- 1DEFINITION
- 2PRINCIPLE
- 3REAGENTS
- 3.1Division 3.1
- 3.2Division 3.2
- 3.3Division 3.3
- 3.4Division 3.4
- 3.5Division 3.5
- 3.6Division 3.6
- APPARATUS
- 4.1Division 4.1
- 4.2Division 4.2
- PROCEDURE
- 5.1Division 5.1
- 5.2Division 5.2
- 5.3Division 5.3
- 5.4Division 5.4
- 5.5Division 5.5
- 5.6Division 5.6
- 5.7Division 5.7
- 5.8Division 5.8
- 6CALCULATION
- 7REPEATABILITY
- Sulphurdioxide distillation apparatus according toAll dimensions in mm