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ISO 2997:1974

Current
Current

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

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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