ISO INTERNATIONAL STANDARD 6353-3 First edition 1987-12-01 INTERNATIONAL ORGANIZATION FOR STANDARDIZATION ORGANISATION INTERNATIONALE DE NORMALISATION MEXKAYHAPOAHAAOPIAHM3ALMANOCTAHAAPTW3AUMV Reagents for chemical analysis - Part 3: Specifications .- Second series Réactifspouranalyseschimiques Partie 3: Specifications -- Deuxieme serie Reference number ISO 6353-3 : 1987 (E) Foreword ISo (the International Organization for Standardization) is a worldwide federation of national standards bodies (IsO member bodies). The work of preparing International Standards is normally carried out through Iso technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, govern- mentai and non-governmental, in liaison with Iso, also take part in the work. Draft International Standards adopted by the technical committees are circulated to the member bodies for approval before their acceptance as International Standards by the ISo Council. They are approved in accordance with ISO procedures requiring at least 75 % approval by the member bodies voting. International Standard iSO 6353-3 was prepared by Technical Committee ISO/TC 47, Chemistry. Users should note that al International Standards undergo revision from time to time and that any reference made herein to any other International Standard implies its latest edition, unless otherwise stated. ? International Organization for Standardization,1987 Printed in Switzerland ISO6353-3:1987(E) Contents Page 1 Scopeandfieldofapplication 1 Reagents (abbreviation: R), Specifications -- Secondseries 1 R 41 2 R 42 Ammonium iron(ll) sulfate hexahydrate 4 R 43 Ammonium iron(l) sulfate dodecahydrate 5 R 44 Ammoniumnitrate 9 R 45 Ammonium sulfate 8 R 46 Ammoniumthiocyanate 6 R 47 Barium hydroxideoctahydrate 10 R 48 Benzene. 11 R 49 2,2'-Bipyridyl. 12 R 50 Boric acid 13 R 51 Bromine ... 14 R 52 1-Butanol, Butyl alcohol. 15 R 53 Calcium carbonate 16 R 54 Carbon tetrachloride 17 R 55 Cobalt(l) chloride hexahydrate 18 R 56 Diammonium oxalate monohydrate 19 R 57 Dichloromethane 21 R 58 Diethyl ether 22 R 59 Dimethylformamide 23 R 60 1,4-Dioxane 24 R 61 Disodium tetraborate decahydrate 25 R 62 Ethylacetate 26 . R 63 Formaldehyde solution. 27 R 64 Glycerol 28 R 65 Hexaammonium heptamolybdate tetrahydrate . 30 R 66 Hydrobromic acid 31 R 67 Hydrofluoric acid. 33 R 68 lodine 34 R 69 Iron(l) sulfate heptahydrate 35 R 70 L-Ascorbicacid 37 R 71 Lead(I) acetate trihydrate 38 R 72 Mercury(ll) chloride 39 R 73 Petroleum spirit 40/60 41 R 74 Phosphorus(V) oxide 42 R 75 Potassium bromate 43 R 76 Potassium carbonate 44 R 77 Potassium chloride 46 R 78 Potassiumcyanide 48 R 79 Potassium dihydrogen phosphate 50 R 80 Potassium hexacyanoferrate(ll) trihydrate 51 R 81 Potassium hexacyanoferratel(ll) R 82 Potassium hydrogen phthalate R 83 Potassium iodate R 84 Potassium nitrate R 85 Potassium sulfate 58 R 86 Potassium thiocyanate 59