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Fiche 1,  Justifications,  Anglais

Record number: 1, Textual support number: 1 DEF

A material that causes visible destruction or irreversible alterations in human skin tissue at the site of contact or that has a severe corrosion rate on steel or aluminum.  3, fiche 1, Anglais, - corrosive

Record number: 1, Textual support number: 1 CONT

A corrosive material can attack(corrode) metals or human tissues such as the skin or eyes. Corrosive materials may cause metal containers or structural materials to become weak and eventually to leak or collapse. Corrosive materials can burn or destroy human tissues on contact and can cause effects such as permanent scarring or blindness. The Controlled Products Regulations describe technical criteria for identifying materials which are classified as corrosive materials.  2, fiche 1, Anglais, - corrosive

Record number: 1, Textual support number: 1 OBS

Corrosives: Class 8 of the Classification of Dangerous Goods.  4, fiche 1, Anglais, - corrosive

Fiche 1,  Justifications,  Français

Record number: 1, Textual support number: 1 CONT

Matières corrosives. Une substance est dite corrosive si elle attaque (corrode) les métaux et les tissus du corps humain, comme ceux de la peau ou des yeux. Les substances corrosives peuvent détériorer les contenants en métal et entraîner une fuite, ou affaiblir les matériaux de charpente et entraîner un effondrement. Les substances corrosives peuvent brûler les tissus du corps humain et causer des cicatrices permanentes ou rendre une personne aveugle. Le Règlement sur les produits contrôlés donne les critères techniques servant à identifier les substances qui appartiennent à la catégorie des matières corrosives.  2, fiche 1, Français, - mati%C3%A8re%20corrosive

Record number: 1, Textual support number: 1 OBS

matière corrosive : terme uniformisé par CP Rail.  3, fiche 1, Français, - mati%C3%A8re%20corrosive

Record number: 1, Textual support number: 2 OBS

Les matières corrosives forment la Classe 8 de la Classification des marchandises dangereuses.  4, fiche 1, Français, - mati%C3%A8re%20corrosive

Fiche 1,  Justifications,  Espagnol

Record number: 1, Textual support number: 1 DEF

Sustancia química que causa destrucción visible o alteraciones irreversibles a los tejidos vivos en el lugar de contacto.  4, fiche 1, Espagnol, - material%20corrosivo

Record number: 1, Textual support number: 1 CONT

Las sustancias químicas corrosivas pueden quemar, irritar o destruir los tejidos vivos. Cuando se inhala o ingiere una sustancia corrosiva, se ven afectados los tejidos del pulmón y estómago. [...] Los materiales con propiedades corrosivas pueden ser ácidos (pH bajo) o básicos (pH elevado).  1, fiche 1, Espagnol, - material%20corrosivo

Fiche 2,  Justifications,  Anglais

Record number: 2, Textual support number: 1 CONT

Lignin Preserving or Lignin Removal? Two approaches are used in the chemical bleaching of pulps. One approach is to utilize chemicals that selectively destroy some of the chromophoric groups, but do not materially attack lignin. The other approach is to almost totally remove residual lignin. The selective approach(often referred to as "brightening" to distinguish it from true bleaching) is used for high-yield pulps with significant lignin content. This methodology is limited in many cases to achieving brightness values in the 70's; but under favorable circumstances, values above 80 can be obtained. Although the brightness gains can be substantial, no known method of selective brightening produces a permanent effect; exposure to light and atmospheric oxygen causes the lignin to rapidly discolor, as can be readily observed with old newspapers.  1, fiche 2, Anglais, - selective%20brightening

Fiche 2,  Justifications,  Français

Fiche 2,  Justifications,  Espagnol