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Production industrial quartz glass and articles thereof

Production industrial quartz glass and articles thereof

OJ L , In force. The survey of industrial production must be based on a list of products identifying the industrial production to be surveyed. A list of products is necessary to permit alignment between production statistics and external trade statistics and to afford comparison with the Community product nomenclature CPA. The Prodcom list needs to be updated; it is therefore necessary to establish the list for

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US5665133A - Process for production of pure transparent quartz - Google Patents

OJ L , In force. The survey of industrial production must be based on a list of products identifying the industrial production to be surveyed. A list of products is necessary to permit alignment between production statistics and external trade statistics and to afford comparison with the Community product nomenclature CPA.

The Prodcom list needs to be updated; it is therefore necessary to establish the list for This Regulation shall enter into force on the 20th day following its publication in the Official Journal of the European Union. This Regulation shall be binding in its entirety and directly applicable in all Member States. Non-ferrous metal ores and concentrates including of cobalt, chromium, molybdenum, titanium, tantalum, vanadium, zirconium, antimony, beryllium, bismuth, germanium, mercury.

Limestone flux, limestone and other calcareous stone used for the manufacture of lime or cement excluding crushed limestone aggregate and calcareous dimension stone. Dolomite, crude, roughly trimmed or merely cut into rectangular or square blocks or slabs excluding calcined, crushed dolomite aggregate. Calcined and sintered dolomite, crude, roughly trimmed or merely cut into rectangular or square blocks or slabs.

Slate, crude, roughly trimmed or merely cut into rectangular or square blocks or slabs. Construction sands such as clayey sands; kaolinic sands; feldspathic sands excluding silica sands, metal bearing sands. Gravel; pebbles; shingle and flint of a kind used for concrete aggregates; for road metalling or for railway or other ballast. Crushed stone of a kind used for concrete aggregates; for roadstone and for other construction use excluding gravel; pebbles; shingle and flint.

Granules; chippings and powder of travertine; Ecaussine; granite; porphyry; basalt; sandstone and other monumental stone. Common clays and shales for construction use excluding bentonite, fireclay, expanded clays, kaolin and kaolinic clays ; andalusite, kyanite and sillimanite; mullite; chamotte or dinas earths.

Natural calcium phosphates; natural aluminium calcium phosphates and phosphatic chalk. Natural sodium borates and concentrates thereof excluding borates separated from natural brine. Salt sodium chloride ; rock salt; sea salt; salt from brine; salt in brine including table salt and denatured salt.

Unsorted diamonds and non-industrial diamonds unworked or simply sawn; cleaved or bruted. Precious or semi-precious stones, unworked or simply sawn or roughly shaped excluding diamonds. Magnesia whether from natural magnesium carbonate or from seawater or brine sources. Slag, and ash including seaweed ash excluding granulated slag, ash and residues containing metals or metal compounds-slag for construction use. Fresh or chilled carcases; half-carcases and quarters with bone in; of beef and veal.

Fresh or chilled carcases and half-carcases of pigmeat including fresh meat packed with salt as a temporary preservative. Fresh or chilled hams; shoulders and cuts thereof with bone in; of pigmeat including fresh meat packed with salt as a temporary preservative.

Fresh or chilled pigmeat including fresh meat packed with salt as a temporary preservative; excluding carcases and half-carcases, hams; shoulders and cuts thereof with bone in. Frozen pigmeat excluding carcases and half-carcases, hams; shoulders and cuts thereof with bone in. Fresh, chilled or frozen edible offal of bovine animals, swine, sheep, goats, horses, asses, mules and hinnies. Greasy wool not carded or combed including fleece-washed wool excluding shorn wool. Pig fat free of lean meat; fresh; chilled; frozen; salted; in brine or smoked excluding rendered.

Animal disposal, unfit for human consumption excluding fish, guts, bladders and stomachs. Fresh, chilled or frozen edible meat and offal including rabbits and hares, game; excluding poultry, bovine and equine animals; swine; sheep and goat, frogs' legs. Hams; shoulders and cuts thereof with bone in of swine; salted; in brine; dried or smoked. Meat salted, in brine, dried or smoked; edible flours and meals of meat or meat offal excluding pig-meat, beef and veal salted, in brine, dried or smoked.

Sausages and similar products of liver including pates and pastes in sausage casings or pressed into a sausage shape. Prepared or preserved hams and cuts thereof of swine excluding salted; in brine; dried or smoked, shoulders. Prepared or preserved shoulders and cuts thereof of swine excluding fresh; chilled; frozen; salted; in brine; dried or smoked.

Extracts and juices of meat, fish, crustaceans, molluscs or other aquatic invertebrates. Flours, meals and pellets of meat or meat offal unfit for human consumption; greaves. Flours, meals and pellets of fish, fit for human consumption; fish livers and roes, dried, smoked, salted or in brine. Smoked fish including fillets excluding Pacific, Atlantic and Danube salmon, herrings. Dried fish, whether or not salted; fish, salted but not dried; fish in brine excluding fillets, smoked.

Prepared or preserved salmon whole or in pieces, but not minced including in vinegar, oil or marinades, pastes excluding dried, salted, in brine or smoked. Prepared or preserved herrings whole or in pieces, but not minced including in vinegar, oil or marinades, pastes excluding dried, salted, in brine or smoked. Prepared or preserved sardines, sardinella, brisling and sprats whole or in pieces, but not minced including in vinegar, oil or marinades, pastes; excluding dried, salted, in brine or smoked.

Prepared or preserved tuna, skipjack and bonito whole or in pieces, but not minced including in vinegar, oil or marinades, pastes excluding dried, salted, in brine or smoked. Prepared or preserved mackerel whole or in pieces, but not minced including in vinegar, oil or marinades, pastes excluding dried, salted, in brine, or smoked.

Prepared or preserved anchovies whole or in pieces, but not minced including in vinegar, oil or marinades, pastes excluding dried, salted, in brine or smoked.

Prepared or preserved fish including sausages and pastes, homogenised, prepared meals, minced; excluding smoked, dried, salted or in brine, fish fingers, caviar. Frozen crustaceans, frozen flours, meals and pellets of crustaceans, fit for human consumption. Aquatic invertebrates excluding crustaceans and molluscs, frozen, dried, salted or in brine flours, meals and pellets of aquatic invertebrates for human consumption.

Flours, meals and pellets of fish or of crustaceans, molluscs or other aquatic invertebrates, unfit for human consumption. Frozen potatoes, prepared or preserved including potatoes cooked or partly cooked in oil and then frozen; excluding by vinegar or acetic acid.

Potatoes prepared or preserved in the form of flour, meal or flakes excluding frozen, dried, crisps, by vinegar or acetic acid. Potatoes prepared or preserved, including crisps excluding frozen, dried, by vinegar or acetic acid, in the form of flour, meal or flakes. Unconcentrated juice of any single citrus fruit excluding orange and grapefruit.

Concentrated fruit and vegetable juices including mixtures of juices; excluding tomato juice. Frozen vegetables and mixtures of vegetables, uncooked or cooked by steaming or boiling in water excluding potatoes. Vegetables provisionally preserved by sulphur dioxide gas, in brine, in sulphur water or in other preservative solutions, but unsuitable in that state for immediate consumption.

Dried mushrooms and truffles, whole, cut, sliced, broken or in powder, but not further prepared. Dried vegetables excluding potatoes, onions, mushrooms and truffles and mixtures of vegetables, whole, cut, sliced, broken or in powder, but not further prepared.

Prepared or preserved mushrooms and truffles excluding by vinegar or acetic acid, dried, frozen. Sauerkraut prepared or preserved otherwise than by vinegar or acetic acid excluding dried, frozen. Prepared or preserved shelled beans excluding by vinegar or acetic acid, dried, frozen. Prepared or preserved unshelled beans excluding by vinegar or acetic acid, dried, frozen. Prepared or preserved asparagus excluding by vinegar or acetic acid, dried, frozen.

Prepared or preserved olives excluding by vinegar or acetic acid, dried, frozen. Prepared or preserved sweetcorn excluding by vinegar or acetic acid, dried, frozen. Vegetables, fruit, nuts and other edible parts of plants, prepared or preserved by vinegar or acetic acid. Citrus fruit jams, marmalades, jellies, purees or pastes, being cooked preparations excluding homogenised preparations. Jams, marmalades, fruit jellies, fruit or nut purees and pastes, being cooked preparations excluding citrus fruit and homogenised preparations.

Prepared or preserved groundnuts including peanut butter; excluding by vinegar or acetic acid, frozen, purees and pastes. Prepared or preserved nuts other than groundnuts ; and other seeds and mixtures excluding by vinegar or acetic acid, frozen, purees and pastes, preserved by sugar.

Fruit and nuts provisionally preserved by sulphur dioxide gas, in brine, sulphur water or in other preservative solutions, but unsuitable for immediate consumption. Dried fruit excluding bananas, dates, figs, pineapples, avocados, guavas, mangoes, mangosteens, citrus fruit and grapes ; mixtures of nuts or dried fruits. Peel of citrus fruit or melons, fresh, frozen, dried or provisionally preserved in brine, in sulphur water or in other preservative solutions. Cooking and other preparation services concentration, etc.

Lard stearin, lard oil, oleostearin, oleo-oil and tallow oil excluding emulsified, mixed or otherwise prepared. Fats and oils and their fractions of fish or marine mammals excluding chemically modified. Crude sunflower-seed and safflower oil and their fractions excluding chemically modified. Crude rape, colza or mustard oil and their fractions excluding chemically modified.

Crude palm kernel or babassu oil and their fractions excluding chemically modified. Oilcake and other solid residues resulting from the extraction of sunflower seed fats or oils. Oilcake and other solid residues resulting from the extraction of rape or colza seed fats or oils. Oils and their fractions obtained solely from olives including those blended with virgin olive oil, refined excluding virgin olive oil, chemically modified. Refined sunflower-seed and safflower oil and their fractions excluding chemically modified.

Refined rape, colza or mustard oil and their fractions excluding chemically modified. Refined palm kernel or babassu oil and their fractions excluding chemically modified. Animal fats and oils and their fractions partly or wholly hydrogenated, inter-esterified, re-esterified or elaidinised, but not further prepared including refined.

Vegetable fats and oils and their fractions partly or wholly hydrogenated, inter-esterified, re-esterified or elaidinised, but not further prepared including refined. Degras; residues resulting from the treatment of fatty substances or animal or vegetable waxes. Grated, powdered, blue-veined and other non-processed cheese excluding fresh cheese, whey cheese and curd.

Flavoured liquid yoghurt or acidified milk curdled milk; cream; yoghurt and other fermented products flavoured or containing added fruit; nuts or cocoa. Whey and modified whey in powder, granules or other solid forms, whether or not concentrated, or containing added sweetening matter. Whey and modified whey in liquid or paste forms; whether or not concentrated or containing added sweetening matter. Ice cream and other edible ice including sherbet, lollipops excluding mixes and bases for ice cream.

Mixes and doughs for the preparation of bread, cakes, pastry, crispbread, biscuits, waffles, wafers, rusks, toasted bread and similar toasted products and other bakers' wares.

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The present invention relates to transparent quartz glass of high purity produced by molding powdery amorphous silica, and sintering and fusing the molded article of amorphous silica. Particularly, the present invention relates to pure transparent quartz glass which contains less impurities like alkalis respectively at a content of not more than 1 ppm, contains less water, and has high heat resistance, thereby being useful for a photomask and other uses in semiconductor production. Conventionally, transparent quartz glass is produced by a process of melting powdery quartz crystal in vacuo in a furnace, a process of melting powdery quartz crystal by oxyhydrogen flame, or a like process. However, the conventional processes employ powdered natural quartz crystal, whereby the resulting quartz glass is not satisfactory to meet the severe requirements for high purity for highly integrated LSI, even though the quartz glass has high heat resistance. Although the powdered natural quartz crystal is treated for high purity, not all of the undesired impurities can be removed to respective contents of not higher than 1 ppm at the moment.

The invention relates to methods for producing high-density ceramic materials based on quartz glass - quartz ceramics with open porosity close to zero. Such material will find wide application for products operating in difficult thermal and climatic conditions. Currently, methods for producing quartz ceramics and articles from it for the manufacture of steel pouring glasses and dispensers in metallurgy are well known R.

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Халохот, расталкивая людей, двигался по центральному проходу, ища глазами намеченную жертву. Он где-то. Халохот повернулся к алтарю. В тридцати метрах впереди продолжалось святое причастие. Падре Херрера, главный носитель чаши, с любопытством посмотрел на одну из скамей в центре, где начался непонятный переполох, но вообще-то это его мало занимало.

Голова у нее раскалывалась.

- Стратмора, похоже, удивило ее недоумение.  - Мне пришлось его проинструктировать. - Проинструктировать. Относительно .

Прочитав написанное, Сьюзан поняла ход мысли коммандера. На бумажке был электронный адрес Северной Дакоты.

NDAKOTAARA.

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Он посмотрел еще внимательнее. Да, он сумел прочитать эти слова, и их смысл был предельно ясен. Прочитав их, Беккер прокрутил в памяти все события последних двенадцати часов. Комната в отеле Альфонсо XIII. Тучный немец, помахавший у него под носом рукой и сказавший на ломаном английском: Проваливай и умри.

Но глаза… твои глаза, - сказал Беккер, чувствуя себя круглым дураком.  - Почему они такие красные. Она расхохоталась. - Я же сказала вам, что ревела навзрыд, опоздав на самолет. Он перевел взгляд на слова, нацарапанные на ее руке. Она смутилась. - Боже, вы, кажется, сумели прочесть. Он посмотрел еще внимательнее.

mechanisms for dolls or for other articles of chapter 95); or Throughout the tariff schedule, the expression "glass" includes fused quartz and other fused silica. conforms to the packing practices of the domestic glass industry as determined and thereof, but does not include natural gemstones, synthetic gemstones.

Когда он поднес раскаленный конец паяльника к последнему контакту, раздался резкий звонок мобильного телефона. Джабба вздрогнул, и на руку ему упала шипящая капля жидкого олова. - Черт возьми! - Он отшвырнул паяльник и едва не подавился портативным фонариком.

 - Дьявольщина.

Потом он подумал о вирусе, попавшем в ТРАНСТЕКСТ, о Дэвиде Беккере в Испании, о своих планах пристроить черный ход к Цифровой крепости. Он так много лгал, он так виноват. Стратмор знал, что это единственный способ избежать ответственности… единственный способ избежать позора.

Он закрыл глаза и нажал на спусковой крючок.

Он успел выскользнуть до того, как Стратмор захлопнул крышку люка, и ему хватило сил самому открыть двери. Сьюзан приходилось слышать, что сильный страх парализует тело, - теперь она в этом убедилась. Ее мозг мгновенно осознал происходящее, и она, вновь обретя способность двигаться, попятилась назад в темноте с одной только мыслью - бежать. И сразу же услышала треск.

Всю ночь, - безучастно ответила Сьюзан.

Этот алгоритм создал один самых блестящих умов в криптографии. Сьюзан пришла в еще большее смятение: самые блестящие умы в криптографии работают в ее отделе, и уж она-то наверняка хоть что-нибудь услышала бы об этом алгоритме.

- Кто? - требовательно сказала. - Уверен, ты догадаешься сама, - сказал Стратмор.  - Он не очень любит Агентство национальной безопасности.

Не знал он только одного - что в его планы вмешается судьба. В феврале того года, когда Энсею исполнилось двенадцать, его приемным родителям позвонили из токийской фирмы, производящей компьютеры, и предложили их сыну-калеке принять участие в испытаниях новой клавиатуры, которую фирма сконструировала для детей с физическими недостатками.

Родители согласились. Хотя Энсей Танкадо никогда прежде не видел компьютера, он как будто инстинктивно знал, как с ним обращаться. Компьютер открыл перед ним мир, о существовании которого он даже не подозревал, и вскоре заполнил всю его жизнь. Повзрослев, он начал давать компьютерные уроки, зарабатывать деньги и в конце концов получил стипендию для учебы в Университете Досися.

Что. - Больше. Панк да и. Панк да и .

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  1. Dailar

    Excuse, that I interrupt you, but it is necessary for me little bit more information.