This European Standard specifies an isotopic method to control the authenticity of wine vinegar. This method is applicable on wine vinegar in order to characterise the 18O/16O ratio of water, and allows differentiating wine vinegar from vinegars made from raisins or alcohol vinegar.

  • Standard
    10 pages
    English language
    sale 10% off
    e-Library read for
    1 day

This European Standard specifies an isotopic method to control the authenticity of vinegar. This method is applicable on acetic acid of vinegar (from cider, alcohol, wine, etc.) in order to characterise the botanical origin of acetic acid and to detect adulterations of vinegar using synthetic acetic acid or acetic acid from not allowed origin (together with the method described in EN 16466-1). The isotopic analysis of the extracted acetic acid by 13C-IRMS is based on a similar method already normalised for wine analysis.

  • Standard
    10 pages
    English language
    sale 10% off
    e-Library read for
    1 day

This European Standard specifies an isotopic method to control the authenticity of vinegar. This method is applicable on acetic acid of vinegar (from wine, cider, agricultural alcohol, etc.) in order to characterise the botanical origin of acetic acid and to detect adulterations of vinegar using synthetic acetic acid or acetic acid from a non-allowed origin (together with the method described in EN 16466-2). The isotopic analysis of the extracted acetic acid by 2H-NMR is based on a similar method already normalised for wine analysis. This European Standard is not applicable to complex matrices made with vinegar as an ingredient, such as balsamic vinegar.

  • Standard
    11 pages
    English language
    sale 10% off
    e-Library read for
    1 day

TC - A Deviation

  • Corrigendum
    3 pages
    English, French and German language
    sale 10% off
    e-Library read for
    1 day

TC - A Deviation

  • Corrigendum
    3 pages
    English, French and German language
    sale 10% off
    e-Library read for
    1 day

This European standard specifies definitions, requirements and marking for acetic acid food grade (product made from materials of non-agricultural origin).

  • Standard
    7 pages
    English language
    sale 10% off
    e-Library read for
    1 day

This European standard specifies definitions, requirements and marking for vinegar (product made from liquids of agricultural origin).

  • Standard
    7 pages
    English language
    sale 10% off
    e-Library read for
    1 day

Applicable to products having Ca contents equal to or more than 50 mg/kg. The presence of soluble SiO2 up to 5 g/ml in the test solution does not interfere. Hydrolysis by boiling a test portion in hydrochloric acid medium. Addition of sodium ions, until a constant concentration is obtained, to stabilize the promotion and emission of Ca; addition of lanthanum chloride to increase the sensitivity of the method. Aspiration of the solution into a dinitrogen monoxide-acetylene flame. Spectrometric measurement of the absorption of the 422.7-nm line emitted by a hollow-cathode calcium lamp. Has also been approved by the IUPAC.

  • Standard
    4 pages
    English language
    sale 15% off
  • Standard
    4 pages
    French language
    sale 15% off
  • Standard
    4 pages
    French language
    sale 15% off

Applicable to products having a Ca content of more than 50 mg/kg. Soluble SiO2 present in the solution at levels lower than 5 g/ml does not interfere. The principle consists in addition, to a hydrochloric acid solution of the test portion, of sodium ions to promote and stabilize the emission of calcium and of lanthanum ions to suppress the interference of aluminium. Specifies the aspiration of the solution into an acetylene-dinitrogen monoxide flame. Photometric measurement of the absorption of the 422.7-nm line emitted by a hollow- cathode calcium lamp. Has also been approved by the IUPAC.

  • Standard
    4 pages
    English language
    sale 15% off
  • Standard
    4 pages
    French language
    sale 15% off
  • Standard
    4 pages
    French language
    sale 15% off

Applicable to products whether or not they are homogeneous and whether or not they contain polyphosphoric acids. Specifies preliminary hydrolysis of the polyphosphoric acids by boiling in the presence of hydrochloric acid. The precipitation of the phosphoric acid is carried out in the form of quinoline phosphomolybdate in the presence of acetone. Filtration by a filter crucible, washing, drying and weighing of the precipitate.

  • Standard
    3 pages
    English language
    sale 15% off
  • Standard
    3 pages
    French language
    sale 15% off
  • Standard
    3 pages
    French language
    sale 15% off

Applicable to products the F content of which is equal to or more than 0.5 mg/kg. Specifies the separation of the element from a test portion by steam distillation in a phosphoric acid medium. Formation of a blue-coloured complex with a combined reagent alizarin complexone/lanthanum nitrate in a buffered medium at the pH of 4.6. Addition of acetone to increase the stability of the complex and the sensitivity. Photometric measurement of the complex at a wavelength of about 600 nm.

  • Standard
    5 pages
    English language
    sale 15% off
  • Standard
    5 pages
    French language
    sale 15% off
  • Standard
    5 pages
    French language
    sale 15% off

A test portion is dissolved in water and acidified with hydrochloric acid. The carbon dioxide is eliminated by heating the solution. The lead is complexed and extracted with a solution of diethylammonium diethyldithiocarbamate in xylene. The solution is aspirated into an acetylene-air flame. The absorption of the 217 nm line or, alternatively, of the 283.3 nm line emitted by a lead hollow-cathode lamp is measured. The method is applicable to products containing more than 0.1 mg/kg of lead.

  • Standard
    3 pages
    English language
    sale 15% off
  • Standard
    3 pages
    French language
    sale 15% off
  • Standard
    3 pages
    French language
    sale 15% off

The hydrogen sulphide in a test portion is removed in a stream of nitrogen and absorbed in a solution of sodiumhydroxide in aqueous acetone. the sulphide ions are titrated with standard volumetric mercury(II) acetate solution, in the presence of 1,5-diphenylthiocarbazone (dithizone) as indicator. The method is applicable to products having hydrogen sulfide contents greater than or equal to 0.05 mg/kg.

  • Standard
    4 pages
    English language
    sale 15% off
  • Standard
    4 pages
    French language
    sale 15% off
  • Standard
    4 pages
    French language
    sale 15% off

A yellow complex is formed by reaction of the vanadium present in a test portion with phosphoric acid and sodium tungstate in acid medium. The spectrometric measurement of the absorbance is carried out at a wavelength of about 425 nm. The method is applicable to products having a vanadium content equal to or greater than 3 mg/kg.

  • Standard
    2 pages
    English language
    sale 15% off
  • Standard
    2 pages
    French language
    sale 15% off
  • Standard
    2 pages
    French language
    sale 15% off

Applicable to products having contents, expressed in nitrogen, of 2 mg/kg or more. Oxidation of nitrogen(III) of a test portion to nitrogen(V) by potassium permanganate. Reaction of nitrogen(V) with 3,4-xylenol under specified conditions to form a nitrate derivative. Distillation of the nitrate derivative and absorption in a sodium hydroxide solution. Spectrophotometric measurement of the yellow coloured nitrophenol at a wavelength of about 435 nm. Has also been approved by the IUPAC.

  • Standard
    4 pages
    English language
    sale 15% off
  • Standard
    4 pages
    French language
    sale 15% off
  • Standard
    4 pages
    French language
    sale 15% off

Applicable to products having contents expressed in chlorine equal to or more than 30 mg/kg. Potentiometric titration of the chloride ions with standard volumetric silver nitrate solution in a nitric acid-acetone-water medium, at a temperature below 20 0C, using a silver measurement electrode and a colomel reference electrode or a pair of silver-mercury(I) sulphate electrodes. Has also been approved by the IUPAC.

  • Standard
    4 pages
    English language
    sale 15% off
  • Standard
    4 pages
    French language
    sale 15% off
  • Standard
    4 pages
    French language
    sale 15% off

Applicable to products having As content equal or more than 0.2 mg/kg. Dissolution of a test portion, acidification with hydrochloric acid solution and oxidation with potassium bromide-bromate solution, followed by hydrolysis. Determination in accordance with the general method in ISO 2590, clause 3. Has also been approved by the IUPAC.

  • Standard
    2 pages
    English language
    sale 15% off
  • Standard
    2 pages
    French language
    sale 15% off
  • Standard
    2 pages
    French language
    sale 15% off

Applicable to products having As contents more than 0.2 mg/kg. The principle consists in reduction of the element to arsine in a solution of silver diethyldithiocarbamate in pyridine. Photometric measurement of the purplish- red colour produced by the colloidally dispersed silver, at the maximum of the absorption curve (wavelength approximately 540 nm).

  • Standard
    2 pages
    English language
    sale 15% off
  • Standard
    2 pages
    French language
    sale 15% off
  • Standard
    2 pages
    French language
    sale 15% off

Applicable to products having a content, expressed as N, equal to or more than 0.2 mg/kg. Consists in oxidation of nitrous nitrogen to nitric nitrogen by potassium permanganate and reaction of nitrogen(V) with 3,4-xylenol under specified conditions to form a nitrate derivative. Subsequent destillation of the nitrate derivative and absorption in sodium hydroxide solution. Spectrophotometric measurement of the yellow nitrophenol at a wavelength of about 435 nm.

  • Standard
    4 pages
    English language
    sale 15% off
  • Standard
    4 pages
    French language
    sale 15% off
  • Standard
    4 pages
    French language
    sale 15% off

Applicable to products having Cl- contents, expressed as chlorine, equal to or more than 0.001 % (m/m). The lower limit can be extended downwards by using weaker standard reference and volumetric solutions. Describes potentiometric titration of the ions with silver nitrate solution in a nitric acid-acetone-water medium using a silver measurement electrode and a calomel reference electrode.

  • Standard
    4 pages
    English language
    sale 15% off
  • Standard
    4 pages
    French language
    sale 15% off
  • Standard
    4 pages
    French language
    sale 15% off

Specifies the treatment of a test portion with an excess of carbonate-free sodium hydoxide solution. Elimination of ammonia by boiling. Precipitation of carbon dioxide by an excess of barium chloride. Neutralization with hydrochloric acid solution using thymolphthalein as indicator. Addition of an excess of standard volumetric hydrochloric solution and back-titration with standard volumetric sodium hydroxide solution using methyl red as indicator.

  • Standard
    3 pages
    English language
    sale 15% off
  • Standard
    3 pages
    French language
    sale 15% off
  • Standard
    3 pages
    French language
    sale 15% off

Applicable to ash contents equal to or more than 0.0001 % (m/m). The principle consists in heating a test portion at low flame in a well-ventilated fume cupboard. After complete volatilization, heating in a furnace at a temperature of (575 25) °C to constant mass.

  • Standard
    1 page
    English language
    sale 15% off
  • Standard
    1 page
    French language
    sale 15% off
  • Standard
    1 page
    French language
    sale 15% off

The principle of the analysis consists in acidification of a test solution by addition of an excess of standard volumetric sulphuric acid solution and back-titration with standard volumetric sodium hydroxide solution in the presence of methyl red- methylene blue mixed indicator.

  • Standard
    1 page
    English language
    sale 15% off
  • Standard
    1 page
    French language
    sale 15% off
  • Standard
    1 page
    French language
    sale 15% off

Specifies a titrimetric method consisting in distillation of the ammonia after displacement by an alkaline solution; absorption in an excess of standard volumetric sulphuric acid solution and back-titration with standard volumetric sodium hydroxide solution in the presence of an indicator. The absorption of the ammonia may also be carried out in an excess of boric acid solution. The titration, in this case, is carried out directly with a standard volumetric sulphuric acid solution.

  • Standard
    3 pages
    English language
    sale 15% off
  • Standard
    3 pages
    French language
    sale 15% off
  • Standard
    3 pages
    French language
    sale 15% off