Decision of 7 November 1972, laying down the provisions of the Court of Glass
We JULIANA, at the grace of God, Queen of the Netherlands, Princess of Orange-Nassau, etc., etc., etc.
On the nomination of Our Minister of Health and the Environment of 8 September 1972, Directorate General of Public Health, Department of Food and Food, No. 106624, and of the State Secretary for Economic Affairs;
Whereas provision should be made for implementing the Directive of the Council of the European Communities of 15 December 1969 on the approximation of the laws of the Member States relating to crystal glass (69/493/EEC) ( Official Journal of the European Communities no. L 326, 29 December 1969);
Having regard to the Articles 14 and 14a of the Warenwet ( Stb. 1935, 793);
Having regard to the opinion of the committee referred to in Article 17, seventh paragraph, of the Warenwet , established by the Economic and Social Council on the basis of Article 43 of the Law on Business Organization ( Stb. 1950, K 22);
The Council of State heard (opinion delivered on 27 September 1972, no. 26);
Having regard to the further report by Our Minister of Health and the Environment of 24 October 1972, Directorate General of Public Health, Department of Food and Food, no. 107474, and of the State Secretary for Economic Affairs;
Have found good and understand:
For the purposes of applying the provisions of this Decision, the following definitions shall apply:
1 °. non-crystallised material obtained by the melting of quartz sands with sodium or potassium-containing and calcium or leaded raw materials, whether or not mixed with other metal oxides;
2 °. material crystallised in whole or in part by warming and cooling of non-crystallized material obtained by melting quartz and aluminium containing raw materials with lithium or magnesium-containing materials, whether or not Unmixed with other metal oxide;
b. Glass articles: For the sale or placing on the market, wholly or principally of glass, of existing articles, for the purposes of table, kitchen, toilet or office purposes, or for ornamental purposes, of the interior of dwellings or buildings, except: Beads, imitation pearls, unreal coral, and similar articles of glass, singly or in the form of curtains or assembled into articles of a decorative purpose, mosaic cubes, mosaic plates or similar decorative articles Purpose, blow-lamp-made fantasy objects, windows, glass plates, ---------------------------------------clotting, or other
c. packaging: a packaging, intended or suitable to be delivered to the user with the content;
Directive 1969 /493/EEC: 69 /493/EEC of the Council of the European Communities of 15 December 1969 for the approximation of the laws of the Member States relating to crystal glass (PbEG L 326).
The following shall be indicated only:
a. The name of the product referred to in number 1 of column B of Annex I to Directive 1969 /493/EEC: the glass article produced from glass containing at least 30% tanning xyde, the volumical mass of which, at least, contains no more than 30% of the weight of the product. 3000 kg/m 3 and the refractive index at least 1,545;
(b) with the designation lead crystal 24% or one of the other names listed in column (b) of Annex I to Directive 1969 /493/EEC: the glass article produced from glass not complying with the provisions of point (a) and at least 24% of the decidyl oxide and Of which the volumical mass at least 2900 kg/m 3 and the refractive index at least 1,545;
c. With the name: Sonearglass , the glass article manufactured from glass which does not comply with the provisions of A and B and:
1 °. at least 10% tanning xyde, oxide or oxide oxide or of a zinc oxide containing at least 10% of a mixture of two or more of these oxides and whose volumical mass is at least 2450 kg/m 3 , and the refractive index, calculated on the sodium D-line, at least 1,520; or
2 °. at least 10% tanning xyde or oxide oxide or at least 10% of a mixture of two or of all these oxides has a surface hardness of 550 ± 20 according to Vickers and the volumical mass of which is at least 2400 kg/m 3 shall be.
1 Glass items must not be marked with the symbols of a circle, square or equilateral triangle without an indication, by the symbol, of one of the other Article 2 Authorised names.
2 A symbol as referred to in paragraph 1 shall be used only if the glass article so marked is made out of glass as defined in the provisions of the provisions of the Annex I The name of the pickled symbol is mentioned.
3 If the symbol used in accordance with paragraph 2 is affixed to the glass item or its packaging, it must have been completed as indicated in: Annex I .
Glassware may not be marked with a name mentioned in numbers 3 and 4 of column b of Annex I to Directive 1969 /493/EEC, with the exception of the name of the glass of sonear glass.
1 Glass articles affixed, or inscription, not to be attached to: Article 2 is authorised name but where such name or one is to be used by the Article 4 the name of the name of the prohibited name is prohibited, or a title with a name Article 2 Authorised name or a Article 4 It may be confused, as well as glassarticles contained in a package in such a way that it is so marked, must also be marked on the glass article on the packaging of the product concerned with:
(b) the name: plain glass or other name, showing the nature of the glass from which the article is made, provided that the glass article is made from glass other than that of the kind covered by the glass. A .
2 terms referred to in paragraph 1:
a. are clearly visible and easily readable, cannot be erased by sweeping and are in any case posed in the Dutch language; and
b. have been affixed to the packaging or to a label attached to it in the case of packaged glass articles.
Indications referring to glass items, which are misleading as to their nature or composition, are not permitted.
To the extent that the assessment of whether the particulars of glass articles correspond to the rules laid down in this Decision, the nature or composition of the glass must be determined, use shall be made of the methods of examination, indicated below: in Annex II of this Decision, in so far as they are sufficient to do so.
1 This decision may be referred to as: 'Glascommodities' Decision (Warenwet).
2 It shall enter into force from the fourth calendar month following the date of issue of the State Sheet , where it's placed.
Our Minister of Health and Environmental Hygiene has been entrusted with the implementation of this Decision, which is due to the Note of State Sheet will be placed and copies of which will be sent to the Council of State.
Soestdijk, 7 November 1972.
The Minister for Health and Environmental Hygiene,
L. B. J. STUYT.
The Secretary of State for Economic Affairs,
J. AUSTRIBRINK.Published on 21 December 1972.
The Minister of Justice,
Symbols referred to in Article 3.
1.1.1. Determination of the total content of BaO + PbO
One weighs approximately 0.5 grams of glass powder on 0.0001 grams and brings it into a platinum capsule. After wetting with water, 10 ml of a sulphuric acid solution is added 15% and 10 ml of hydrofluoric acid. The whole was heating up in a sandbath until white fumes arose. Let cool and retreat with 10 ml of hydrofluoric acid. Then again heating up to the formation of white fumes. Allow to cool down and sprinkle the walls of the capsule with water. Once again heating up until white fumes emerge. Allow to cool, carefully add 10 ml of water and then pour over into a 400 ml beaker. The capsule is rinsed several times with a 10% sulphuric acid solution after which up to 100 ml is diluted with the same solution. Cook for 2-3 minutes and rest for a night.
Filtration is filtered through a filter gel with porosity 4, then washing the filtrate first with a 10% sulphuric acid solution and then 2 to 3 times ethyl alcohol. Then dry it at 150 ° C for an hour in the dryer cabinet. Then, the BaSO4 + PbSO4 is weighed.
1.1.2. Determination of BaO
Approximately 0.5 grams of glass powder is weighed accurately at 0.0001 grams and brought into a platinum capsule. This is moistened with water after which 10 ml of hydrofluoric acid and 5 ml of perchloric acid is added. The whole is heated in a sand bath until white fumes emerge.
Let cool and re-add 10 ml of fluorohydroric acid. Heat up until white fumes occur again. Allow to cool down and sprinkle the walls of the capsule with distilled water. After that, heat again and evaporate to almost dry. Add 50 ml of hydrochloric acid 10% and heat the light to promote the solution. Pour in a 400 ml beaker and dilute with water up to 200 ml. Bring to the boil and have a sulfur hydrogen stream through the hot solution. As soon as the lead sulfide is deposited on the bottom of the vessel, the gas flow is shut down. Filter by means of filter paper with dense tissue and wash with cold water saturated with hydrogen sulphuric acid.
The filtrates are boiled and possibly to be swallowed up to 300 ml. At the time of cooking, 10 ml of a 10% sulphuric acid solution shall be added. The solution is taken from the fire and one is left to stand for at least four hours.
Filtering through filter paper with dense tissue is filtered, then washed with cold water. The precipitation shall be calcined at 1,050 ° C and the BaSO4is weighed.
The filtrates from the separation of the BaSO4 are to be evaporated to a volume of 200 ml. In the presence of methyl red, neutralised with ammonia and 20 ml of sulphuric acid 0,1 n is added. The pH will then be adjusted to 2 by adding 0,1 n sulphuric acid or 0,1 n sodium hydroxide and then precipice the zinc sulphide by passing a sulphuric hydrogen stream. The precipitation is collected on a filter paper with dense tissue during the four hours of precipitation. Cold water is weeded with swished hydrogen. The precipitate on the filter is dissolved by pouring 25 ml of a warm 10% chlorine hydrogen acid solution. The filter will then be washed with boiling water until a volume of approximately 150 ml is obtained. It is neutralised with ammonia in the presence of litmus paper, after which 1 to 2 grams of fixed urotropin is added to determine the pH at about 5. A few drops of a freshly prepared, aqueous 0,5% dimethylphenolian orange solution are added and titrates with a solution of complexion III 0.1 n until the pink omits to lemon yellow.
by precipitation and weighing of potassium tetraphenylboride.
Unfastening: after crushing, and seven becomes 2 gram of glass unsealed by 2 ml concentrated
15 ml HClO4
25 ml HF
in a platinum capsule in a heetwater bath and then in a sand bath. After the separation of thick perchloride vapours until the mixture is dry, it is dissolved by 20 ml of hot water and 2-3 ml of concentrated HCl.
Pour over the solution into a 200 ml volumetric flask and add to the volume with distilled water up to the volume.
Reagents: 6% solution of sodium tetraphenylboride: 1.5 grams of reagent is dissolved in 250 ml of distilled water. The remaining slight opacity is removed by the addition of 1 gram of aluminium hydroxide. Stir for five minutes, then filtration, where the first 20 ml should be filtered again. Wash solution of the precipitation: One prepares a low potassium salt through precipitation in a solution of approximately 0,1 gram KCl at 50 ml HCl 0,1 n; herein, it is already rotating the solution of tetraphenylboride until the precipitation is terminated. Filter on glass and wash with distilled water. Dry in a drying appliance at ambient temperature, after which 20 to 30 mg of this salt is brought in 250 ml of distilled water. Stir it from time to time. After 30 minutes, 0.5 to 1 gram of aluminium hydroxide is added. After a few minutes of stirring, filter is filtered.
Procedure: The hydrochloric acid solution for the declosure shall be taken as a quantity corresponding to approximately 10 mg K2O. This amount is diluted to approximately 100 ml after which the test solution, i.e. 10 ml at 5 mg estimated K2O, is added under moderate stirring. Allow for a maximum of 15 minutes, then filter by using a tarted, sintered filter-line number. 3 or 4. Wash with a washing solution. Drying at 120 ° C for 30 minutes. The conversion factor for K2O = 0,13143.
± 0,1 in absolute value for each provision.
If an analysis has a value below the limits laid down (30, 24 or 10%) within these tolerances, the average of at least three analyses must be taken. Is the analysis value equal to or greater than 29,95, 23,95, or 9.95, the glass must be accommodated in the categories corresponding to 30, 24 and 30 respectively. 10%.
Method by means of hydrostatic balance to ± 0,01 accurate. A sample of at least 20 grams shall be weighed in the atmosphere and immersed in distilled water at 20 ° C.
The refractive index is measured with a refractometer at ± 0.001 accurate.
The Vickers hardness is measured according to ASTM E 92-65 (revision 1965) based on a 50 gram charge and the average of 15 determinations is taken.