Sulphate
Sulphates occur naturally in many waters. Sulphates are introduced into treated waters by the use of such chemicals as aluminium sulphate, sodium bisulphate (dry acid) and sulphuric acid. The presence of high levels of sulphate can be undesirable for a number of reasons.
In industrial waters containing sulphate localized corrosion of iron, steel and aluminium in plant and pipework can occur through the action of sulphate-reducing bacteria. These bacteria, which generate sulfides, cause a characteristic pitting of the metal surface.
High sulphate levels can also cause damage to concrete and cement based materials through the formulation of calcium solphoaluminate. This causes expansion and crumbling of the cement. It can affect concrete structures and pipes in water distribution systems carrying sulphate-bearing ground waters; and can attack grouting in tiled swimming pools using sodium bisulphate for pH adjustment.
The following products are available to test for Sulphate:
Photometer 7100
The Photometer 7100 is fully integrated with the Palintest system of water analysis. It offers a great value instrumental analysis for an extensive range of water tests.
Photometer 7500
The Palintest Photometer 7500 takes portable water testing to new heights. The smooth good looks cover a solidly engineered instrument with a high specification and high performance.
Photometer 8000
The Palintest Photometer 8000 sets a new standard for water quality testing and ease of operation. It is designed to provide accurate and fast analysis for even the busiest test labs.
Pooltest 25 Professional Plus
The Pooltest 25 Professional Plus features simple selection of over 25 pre-programmed tests. The instrument can store up to 500 test results in its on-board memory and can be interfaced with spreadsheets or pool management software applications.
Visual Comparators
Comparator discs have for many years been the standard method of testing commercial and public pools. Aquatic Life Ltd. offers a full range of kits based on the Palintest Comparator and Disc system for the pool operator.
