ISO 3393-1976 Cryolite natural and artificial and aluminium fluoride for industrial use Determination of moisture content Gravimetric method《工业用天然及人造冰晶石和氟化铝 含水量.pdf

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1、NORME INTERNATIONALE 3393 *E m, est la masse, en grammes, du vase a peser (avec son couvercle) contenant la prise dessai, aprs schage; m2 est la masse, en grammes, du vase a peser (avec son couvercle) contenant la prise dessai, avant schage. 7 PROCS-VERBAL DESSAI Le procs-verbal dessai doit contenir

2、 les indications suivantes : a) rfrence de la mthode utilise; b) rsultats, ainsi que la forme sous laquelle ils sont exprims; c) compte rendu de tous dtails particuliers ventuels relevs au cours de lessai; d) compte rendu de toutes oprations non prvues dans la prsente Norme Internationale ou dans le

3、s Normes Internationales auxquelles il est fait rfrence, ou de toutes oprations facultatives. 1 IS0 3393-1976 (FI ANNEXE PUBLICATIONS IS0 RELATIVES LA CRYOLITHE, NATURELLE ET ARTIFICIELLE, ET AU FLUORURE DALUMINIUM USAGE INDUSTRIEL CRYOLITHE, NATURELLE ET ARTIFICIELLE IS0 1619 - Prparation et conser

4、vation des chantillons pour essai. IS0 1620 - Dosage de la silice - Mthode spectrophotomtrique au molybdosilicate rduit. IS0 1693 - Dosage du fluor - Mthode de Willard-Winter modifie. IS0 1694 - Dosage du fer - Mthode photomtrique la 1 ,IO-phnanthroline. IS0 2366 - Dosage du sodium - Mthodes par spe

5、ctrophotomtrie de flamme (mission) et par absorption atomique. IS0 2367 - Dosage de laluminium - Mthode gravimtrique Ihydroxy-8 quinoline. IS0 2830 - Dosage de laluminium - Mthode par absorption atomique. IS0 3391 - Dosage du calcium - Mthode par absorption atomique dans la flamme. IS0 3392 - Dosage

6、 de leau - Mthode lectromtrique. IS0 3393 - Dtermination de lhumidit - Mthode gravimtrique. IS0 4277 - valuation de la teneur en fluorures libres - Mthode titrimtrique conventionnelle. IS0 4280 - Dosage des sulfates - Mthode gravimtrique Itat de sulfate de baryum. -. - FLUORURE DALUMINIUM USAGE INDU

7、STRIEL IS0 2362 - Dosage du fluor - Mthode de Willard-Winter modifie. IS0 2368 - Dosage du fer - Mthode photomtrique la 1,lO-phnanthroline. IS0 2369 - Dosage de la silice - Mthode spectrophotomtrique au complexe silicomolybdique rduit. IS0 2925 - Prparation et conservation des chantillons pour essai. IS0 3392 - Dosage de leau - Mthode lectromtrique. IS0 3393 - Dtermination de lhumidit - Mthode gravimtrique. IS0 4279 - Dosage du sodium - Mthode par spectrophotomtrie de flamme en mission. IS0 4280 - Dosage des sulfates - Mthode gravimtrique Itat de sulfate de baryum. 2

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