ISO 2997:1974
Current
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The latest, up-to-date edition.
Phosphoric acid for industrial use — Determination of sulphate content — Method by reduction and titrimetry
Available format(s)
Hardcopy , PDF , PDF 3 Users , PDF 5 Users , PDF 9 Users
Language(s)
English, French
Published date
01-11-1974
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Applicable to products having sulphate contents equal to or more than 0.0005 % (m/m). Analysis by reduction of the sulphate to sulphide by a mixture of hydriodic acid and hypophosphorus acid. Absorption of the hydrogen sulphide evolved in a mixture of acetone and sodium hydroxide solution. Titration with a standard volumetric solution of mercury(II) acetate in the presence of dithizone as indicator. Has also been approved by the IUPAC.
| Committee |
ISO/TC 47
|
| DevelopmentNote |
Supersedes ISO R 847 (04/2001)
|
| DocumentType |
Standard
|
| Pages |
3
|
| PublisherName |
International Organization for Standardization
|
| Status |
Current
|
| Supersedes |
| Standards | Relationship |
| NBN EN 1208 : 2005 | Identical |
| NBN T 03 263 : 1980 | Identical |
| NBN EN 1206 : 2005 | Identical |
| NBN EN 1202 : 2005 | Identical |
| NBN EN 1207 : 2005 | Identical |
| NBN EN 1209 : 2004 | Identical |
| PN ISO 2997 : 2000 | Identical |
| BS 4258-3:1989 | Similar to |
| 03/313984 DC : DRAFT NOV 2003 | EN 1211 - CHEMICALS USED FOR TREATMENT OF WATER INTENDED FOR HUMAN CONSUMPTION - POTASSIUM TRIPOLYPHOSPHATE |
| 03/313973 DC : DRAFT NOV 2003 | EN 1200 - CHEMICALS USED FOR TREATMENT OF WATER INTENDED FOR HUMAN CONSUMPTION - TRISODIUM ORTHOPHOSPHATE |
| 03/313981 DC : DRAFT NOV 2003 | EN 1207 - CHEMICALS USED FOR TREATMENT OF WATER INTENDED FOR HUMAN CONSUMPTION - TETRAPOTASSIUM PYROPHOSPHATE |
| BS EN 1201:2005 | Chemicals used for treatment of water intended for human consumption. Potassium dihydrogen orthophosphate |
| BS EN 1200:2005 | Chemicals used for treatment of water intended for human consumption. Trisodium orthophosphate |
| BS EN 1203:2005 | Chemicals used for treatment of water intended for human consumption. Tripotassium orthophosphate |
| BS EN 1210:2005 | Chemicals used for treatment of water intended for human consumption. Sodium tripolyphosphate |
| I.S. EN 1202:2005 | CHEMICALS USED FOR TREATMENT OF WATER INTENDED FOR HUMAN CONSUMPTION - DIPOTASSIUM HYDROGEN ORTHOPHOSPHATE |
| EN 1201:2005 | Chemicals used for treatment of water intended for human consumption - Potassium dihydrogen orthophosphate |
| EN 1208:2005 | Chemicals used for treatment of water intended for human consumption - Sodium calcium polyphosphate |
| EN 1207:2005 | Chemicals used for treatment of water intended for human consumption - Tetrapotassium pyrophosphate |
| EN 1212:2005 | Chemicals used for treatment of water intended for human consumption - Sodium polyphosphate |
| EN 1198:2005 | Chemicals used for treatment of water intended for human consumption - Sodium dihydrogen orthophosphate |
| EN 1204:2005 | Chemicals used for treatment of water intended for human consumption - Calcium tetrahydrogen bis(orthophosphate) |
| EN 1199:2005 | Chemicals used for treatment of water intended for human consumption - Disodium hydrogen orthophosphate |
| EN 1202:2005 | Chemicals used for treatment of water intended for human consumption - Dipotassium hydrogen orthophosphate |
| EN 1205:2005 | Chemicals used for treatment of water intended for human consumption - Disodium dihydrogen pyrophosphate |
| EN 1210:2005 | Chemicals used for treatment of water intended for human consumption - Sodium tripolyphosphate |
| EN 1206:2005 | Chemicals used for treatment of water intended for human consumption - Tetrasodium pyrophosphate |
| DIN EN 974:2004-01 | Chemicals used for treatment of water intended for human consumption - Phosphoric acid; German version EN 974:2003 |
| 03/313977 DC : DRAFT NOV 2003 | EN 1204 - CHEMICALS USED FOR TREATMENT OF WATER INTENDED FOR HUMAN CONSUMPTION - MONOCALCIUM PHOSPHATE |
| 03/313979 DC : DRAFT NOV 2003 | EN 1206 - CHEMICALS USED FOR TREATMENT OF WATER INTENDED FOR HUMAN CONSUMPTION - TETRASODIUM PYROPHOSPHATE |
| DIN EN 15040:2014-06 | CHEMICALS USED FOR TREATMENT OF WATER INTENDED FOR HUMAN CONSUMPTION - ANTISCALANTS FOR MEMBRANES - PHOSPHONIC ACIDS AND SALTS |
| 03/313974 DC : DRAFT NOV 2003 | EN 1201 - CHEMICALS USED FOR TREATMENT OF WATER INTENDED FOR HUMAN CONSUMPTION - MONOPOTASSIUM DIHYDROGEN ORTHOPHOSPHATE |
| UNE-EN 15040:2015 | Chemicals used for treatment of water intended for human consumption - Antiscalants for membranes - Phosphonic acids and salts |
| DIN EN 1208:2005-06 | CHEMICALS USED FOR TREATMENT OF WATER INTENDED FOR HUMAN CONSUMPTION - SODIUM CALCIUM POLYPHOSPHATE |
| DIN EN 1205:2005-06 | CHEMICALS USED FOR TREATMENT OF WATER INTENDED FOR HUMAN CONSUMPTION - DISODIUM DIHYDROGEN PYROPHOSPHATE |
| DIN EN 1201:2005-06 | Chemicals used for treatment of water intended for human consumption - Potassium dihydrogen orthophosphate; German version EN 1201:2005 |
| DIN EN 1212:2005-06 | Chemicals used for treatment of water intended for human consumption - Sodium polyphosphate; German version EN 1212:2005 |
| DIN EN 1207:2005-06 | Chemicals used for treatment of water intended for human consumption - Tetrapotassium pyrophosphate; German version EN 1207:2005 |
| BS EN 1198:2005 | Chemicals used for treatment of water intended for human consumption. Sodium dihydrogen orthophosphate |
| BS EN 1212:2005 | Chemicals used for treatment of water intended for human consumption. Sodium polyphosphate |
| BS EN 1207:2005 | Chemicals used for treatment of water intended for human consumption. Tetrapotassium pyrophosphate |
| BS EN 1202:2005 | Chemicals used for treatment of water intended for human consumption. Dipotassium hydrogen orthophosphate |
| I.S. EN 1203:2005 | CHEMICALS USED FOR TREATMENT OF WATER INTENDED FOR HUMAN CONSUMPTION - TRIPOTASSIUM ORTHOPHOSPHATE |
| I.S. EN 1204:2005 | CHEMICALS USED FOR TREATMENT OF WATER INTENDED FOR HUMAN CONSUMPTION - CALCIUM TETRAHYDROGEN BIS(ORTHOPHOSPHATE) |
| I.S. EN 1198:2005 | CHEMICALS USED FOR TREATMENT OF WATER INTENDED FOR HUMAN CONSUMPTION - SODIUM DIHYDROGEN ORTHOPHOSPHATE |
| I.S. EN 1205:2005 | CHEMICALS USED FOR TREATMENT OF WATER INTENDED FOR HUMAN CONSUMPTION - DISODIUM DIHYDROGEN PYROPHOSPHATE |
| I.S. EN 1197:2014 | CHEMICALS USED FOR TREATMENT OF WATER INTENDED FOR HUMAN CONSUMPTION - MONOZINC PHOSPHATE SOLUTION |
| I.S. EN 1201:2005 | CHEMICALS USED FOR TREATMENT OF WATER INTENDED FOR HUMAN CONSUMPTION - POTASSIUM DIHYDROGEN ORTHOPHOSPHATE |
| I.S. EN 1210:2005 | CHEMICALS USED FOR TREATMENT OF WATER INTENDED FOR HUMAN CONSUMPTION - SODIUM TRIPOLYPHOSPHATE |
| I.S. EN 1208:2005 | CHEMICALS USED FOR TREATMENT OF WATER INTENDED FOR HUMAN CONSUMPTION - SODIUM CALCIUM POLYPHOSPHATE |
| I.S. EN 1199:2005 | CHEMICALS USED FOR TREATMENT OF WATER INTENDED FOR HUMAN CONSUMPTION - DISODIUM HYDROGEN ORTHOPHOSPHATE |
| I.S. EN 1212:2005 | CHEMICALS USED FOR TREATMENT OF WATER INTENDED FOR HUMAN CONSUMPTION - SODIUM POLYPHOSPHATE |
| I.S. EN 1211:2005 | CHEMICALS USED FOR TREATMENT OF WATER INTENDED FOR HUMAN CONSUMPTION - POTASSIUM TRIPOLYPHOSPHATE |
| I.S. EN 1200:2005 | CHEMICALS USED FOR TREATMENT OF WATER INTENDED FOR HUMAN CONSUMPTION - TRISODIUM ORTHOPHOSPHATE |
| DIN EN 1197:2001-03 | CHEMICALS USED FOR TREATMENT OF WATER INTENDED FOR HUMAN CONSUMPTION - MONOZINC PHOSPHATE SOLUTION |
| I.S. EN 1206:2005 | CHEMICALS USED FOR TREATMENT OF WATER INTENDED FOR HUMAN CONSUMPTION - TETRASODIUM PYROPHOSPHATE |
| BS 4258-3:1989 | Methods of test for phosphoric acid (orthophosphoric acid) for industrial use Methods of test for phosphoric acid (orthophosphoric acid) for industrial use. Determination of sulphate content |
| 03/313978 DC : DRAFT NOV 2003 | EN 1205 - CHEMICALS USED FOR TREATMENT OF WATER INTENDED FOR HUMAN CONSUMPTION - SODIUM ACID PYROPHOSPHATE |
| 03/313982 DC : DRAFT NOV 2003 | EN 1208 - CHEMICALS USED FOR TREATMENT OF WATER INTENDED FOR HUMAN CONSUMPTION - SODIUM CALCIUM POLYPHOSPHATE |
| I.S. EN 15040:2014 | CHEMICALS USED FOR TREATMENT OF WATER INTENDED FOR HUMAN CONSUMPTION - ANTISCALANTS FOR MEMBRANES - PHOSPHONIC ACIDS AND SALTS |
| DIN EN 1204:2005-06 | CHEMICALS USED FOR TREATMENT OF WATER INTENDED FOR HUMAN CONSUMPTION - CALCIUM TETRAHYDROGEN BIS(ORTHOPHOSPHATE) |
| DIN EN 1211:2005-06 | Chemicals used for treatment of water intended for human consumption - Potassium tripolyphosphate; German version EN 1211:2005 |
| DIN EN 1200:2005-06 | Chemicals used for treatment of water intended for human consumption - Trisodium orthophosphate; German version EN 1200:2005 |
| DIN EN 1210:2005-06 | Chemicals used for treatment of water intended for human consumption - Sodium tripolyphosphate; German version EN 1210:2005 |
| DIN EN 1197:2014-06 | CHEMICALS USED FOR TREATMENT OF WATER INTENDED FOR HUMAN CONSUMPTION - MONOZINC PHOSPHATE SOLUTION |
| DIN EN 1198:2005-06 | Chemicals used for treatment of water intended for human consumption - Sodium dihydrogen orthophosphate; German version EN 1198:2005 |
| DIN EN 1203:2005-06 | Chemicals used for treatment of water intended for human consumption - Tripotassium orthophosphate; German version EN 1203:2005 |
| DIN EN 1206:2005-06 | Chemicals used for treatment of water intended for human consumption - Tetrasodium pyrophosphate; German version EN 1206:2005 |
| DIN EN 1202:2005-06 | Chemicals used for treatment of water intended for human consumption - Dipotassium hydrogen orthophosphate; German version EN 1202:2005 |
| DIN EN 1199:2005-06 | Chemicals used for treatment of water intended for human consumption - Disodium hydrogen orthophosphate; German version EN 1199:2005 |
| UNI EN 1197 : 2014 | CHEMICALS USED FOR TREATMENT OF WATER INTENDED FOR HUMAN CONSUMPTION - MONOZINC PHOSPHATE SOLUTION |
| EN 1200:2005 | Chemicals used for treatment of water intended for human consumption - Trisodium orthophosphate |
| 03/313985 DC : DRAFT NOV 2003 | EN 1212 - CHEMICALS USED FOR TREATMENT OF WATER INTENDED FOR HUMAN CONSUMPTION - SODIUM POLYPHOSPHATE |
| UNI EN 15040 : 2014 | CHEMICALS USED FOR TREATMENT OF WATER INTENDED FOR HUMAN CONSUMPTION - ANTISCALANTS FOR MEMBRANES - PHOSPHONIC ACIDS AND SALTS |
| 03/313971 DC : DRAFT NOV 2003 | EN 1198 - CHEMICALS USED FOR TREATMENT OF WATER INTENDED FOR HUMAN CONSUMPTION - SODIUM DIHYDROGEN ORTHOPHOSPHATE |
| 03/313983 DC : DRAFT NOV 2003 | EN 1210 - CHEMICALS USED FOR TREATMENT OF WATER INTENDED FOR HUMAN CONSUMPTION - SODIUM TRIPOLYPHOSPHATE |
| 03/313976 DC : DRAFT NOV 2003 | EN 1203 - CHEMICALS USED FOR TREATMENT OF WATER INTENDED FOR HUMAN CONSUMPTION - TRIPOTASSIUM ORTHOPHOSPHATE |
| DIN EN 15040 E : 2014 | CHEMICALS USED FOR TREATMENT OF WATER INTENDED FOR HUMAN CONSUMPTION - ANTISCALANTS FOR MEMBRANES - PHOSPHONIC ACIDS AND SALTS |
| BS EN 1211:2005 | Chemicals used for treatment of water intended for human consumption. Potassium tripolyphosphate |
| BS EN 1206:2005 | Chemicals used for treatment of water intended for human consumption. Tetrasodium pyrophosphate |
| BS EN 1199:2005 | Chemicals used for treatment of water intended for human consumption. Disodium hydrogen orthophosphate |
| BS EN 1208:2005 | Chemicals used for treatment of water intended for human consumption. Sodium calcium polyphosphate |
| BS EN 1205:2005 | Chemicals used for treatment of water intended for human consumption. Disodium dihydrogen pyrophosphate |
| UNE-EN 1197:2015 | Chemicals used for treatment of water intended for human consumption - Monozinc phosphate solution |
| BS EN 1204:2005 | Chemicals used for treatment of water intended for human consumption. Calcium tetrahydrogen bis(orthophosphate) |
| EN 15040:2014 | Chemicals used for treatment of water intended for human consumption - Antiscalants for membranes - Phosphonic acids and salts |
| EN 974:2003 | Chemicals used for treatment of water intended for human consumption - Phosphoric acid |
| 03/313972 DC : DRAFT NOV 2003 | EN 1199 - CHEMICALS USED FOR TREATMENT OF WATER INTENDED FOR HUMAN CONSUMPTION - DISODIUM HYDROGEN ORTHOPHOSPHATE |
| 03/313975 DC : DRAFT NOV 2003 | EN 1202 - CHEMICALS USED FOR TREATMENT OF WATER INTENDED FOR HUMAN CONSUMPTION - DIPOTASSIUM HYDROGEN ORTHOPHOSPHATE |
| BS EN 15040:2014 | Chemicals used for treatment of water intended for human consumption. Antiscalants for membranes. Phosphonic acids and salts |
| BS EN 974:2003 | Chemicals used for treatment of water intended for human consumption. Phosphoric acid |
| BS EN 1197:2014 | Chemicals used for treatment of water intended for human consumption. Monozinc phosphate solution |
| EN 1197:2014 | Chemicals used for treatment of water intended for human consumption - Monozinc phosphate solution |
| EN 1203:2005 | Chemicals used for treatment of water intended for human consumption - Tripotassium orthophosphate |
| EN 1211:2005 | Chemicals used for treatment of water intended for human consumption - Potassium tripolyphosphate |
| I.S. EN 1207:2005 | CHEMICALS USED FOR TREATMENT OF WATER INTENDED FOR HUMAN CONSUMPTION - TETRAPOTASSIUM PYROPHOSPHATE |
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