Ultrasound and ECG gel

35.03 - Gelatin (including gelatin in rectan lar (including square) sheets, whether or not surface-worked or coloured) and ge atin derivatives; ismglass; other glues of animal origin, excluding casein glues of heading 35.01. p Gelatin and the lues of this heading are water-soluble protein substances obtained by treating skins, cartilage, tones, tendons or s~milaranimal materials, usually with warm water with or without addition of acids. (A) Gelatin is less glutinous and more refined than glues, forming a clear jelly with water. It is used in the reparation of foodstuffs, pharmaceutical products and photogra hic emulsions, for acteriological culture and for clari ing beers and wines. It is also use for sizin paper or textiles, m the rinting industry, or preparing plastics (hardened gelatin) and or manufacturing into artic es. !i f P B P' Gelatin is usually in the form of thin, transparent, almost colourless and odourless sheets still bearing the impressions of the nets on which it was dried, but it is also marketed in slabs, plates, sheets, flakes, powders, etc. Sheets of gelatin are classified in this headin provided they are in the form of rectangles (includin squares), and whether or not k e y are surface-worked or mloured (e.g embosset metallised, printed - other than gelatin postcards and other products rinted 2 described in Chapter 49). If cut otherwise than in rectan es or squares (e.g., Jscs they are classified in heading 96.02. Moulded or carved unharL?ened gelatin is also classi led in heading 96.02. (B) Gelatin derivatives include in particular gelatin tannate and gelatin bromotannate. (C) Isinglass is obtained by mechanical treatment of the air bladders of certain fish, particularly the sturgeon. It is presented in a solid state, generally in the form of semitransparent thin sheets. It is used principally as a clarifying agent for beer, wine or other alcoholic beverages, and in pharmacy. (D) The other glues of animal origin covered by this heading are the impure forms of gelatin used as glues. They may contain additives such as preservatives, pigments or viscosity control agents. The principal glues are (1) Bone glues, hide glues, nerve glues, sinew glues. These glues are yellow to brown in colour with a strong odour and are generally m thicker, harder, more brittle sheets than raw gelatin. They may also be in the form of beads, flakes, etc. (2) Fish lues (other than isinglass). These glues are obtained b the action of hot water on fis waste (skin, cartilage, bones, fins, etc.), and are usua ly in a gelatinous liquid state. K The heading does not cover : (a) Casein glues (heading 35.01). (b) Glues put up for retail sale, not exceeding a net weight of 1 kg (heading 35.06). (c) Copying pastes (duplicating jellies) with a basis of gelatin (heading 38.24). (d) Hardened gelatin (heading 39.13).