Quality Management by strict standard

Permastore is acknowledged as the world leader in Glass-Fused-to-Steel bolted tank technology and has adopted three guiding principles that ensure our world leading product is the most technologically advanced and second to none in terms of design and quality.
These three principles are illustrated in the report and are as follows:

  • To lead the industry with the most advanced high performance Glass-Fused-to-Steel product available
  • To fully utilise international standards to give the most comprehensive chemical corrosion resistance testing available in the industry
  • To use the industry s most advanced Glass-Fused-to-Steel product performance testing techniques using non destructive high voltage electrical testing.

The Permastore approach is continuous quality control and testing during the complete manufacturing phase incorporating the most up to date international standards. This is also confirmed by published quality standards on the complete product range.

Permastore's unique three advantages

High performance interior coatings creating the industry's most advanced enamels available

It is the combination of material and process knowledge coupled with our unique pre-treatment that enables us to offer non destructive high voltage testing with zero discontinuities / holidays along with a comprehensive chemical corrosion resistance testing regime on our entire industrial product range. These properties are achieved by our specific blue / green coloured tank internal enamels, lighter coloured enamels such as ivory and white do not meet the same performance criteria. A new standard EN 15282 Vitreous and porcelain enamels Design of bolted steel tanks for the storage or treatment of water or municipal or industrial effluents and sludges, gives full details for the quality testing requirements.

As part of our commitment to raising the standards in the industry we have been fully supportive of a new international standard EN 15282 Vitreous and porcelain enamels Design of bolted steel tanks for the storage or treatment of water or municipal or industrial effluents and sludges.

Flow Diagram with Product Features and Benefits

Permastore is the only Glass-Fused-to-Steel tank manufacturer offering zero discontinuities/holidays on its complete industrial product range

As part of our commitment to raising the standards in the industry we have been fully supportive of a new international standard EN 15282 Vitreous and porcelain enamels Design of bolted steel tanks for the storage or treatment of water or municipal or industrial effluents and sludges.

By using this method a sheet coating which is potentially not a total liquid impervious protective barrier could be certified as factory tested with no discontinuities / holidays by the manufacturer and be supplied to site for erection. However once this is installed on the tank assembly and the sheet is in service the pressure of the tank contents may well locate this discontinuity and ultimately lead to premature repair caused by corrosion. This may result in a significant increase in the tank operational and maintenance costs.
any potential weak spot in the surface coating will be located with non destructive high voltage whilst low voltage wet swab testing will not locate these potentially damaging discontinuities in the final manufactured product.

Permastore has over 14 years experience in the use and application of non destructive high voltage testing. This experience enables us to offer a discontinuity / holiday free and 100% total liquid impervious internal protective barrier, by fully utilising the advantages that the non destructive high voltage test brings. No other manufacturer compares to our comprehensive published quality standards.

See below for a clear comparison of low and high voltage testing which clearly illustrates the overwhelming advantages of high voltage testing.

Our nondestructive high voltage test
Our nondestructive high voltage test

  1. Current passes through holiday - defect registered.
  2. Current passes through holiday. Surface tension has no effect on high voltage testing - defect registered.
  3. Current passes through void below surface - defect registered.
  4. Current passes through inclusion below surface - defect registered
  5. Current passes through thin spot - defect registered.

Result = All sheets with discontinuities and potential defect

Other maker's low voltage wet swab test
Other maker's low voltage wet swab test

  1. Test reagent passes through holiday - defect registered.
  2. Test reagent subject to surface tension - defect does not register.
  3. Void below surface - defect does not register.
  4. Inclusion below surface - defect does not register.
  5. Thin spot in enamel - defect does not register.

Result = Sheets with potential defect sites will pass quality control

The industry s most advanced chemical corrosion resistance testing and simulation

There are International Standards including ISO, EN and ASTM, available to test the chemical corrosion resistance of vitreous and porcelain enamel coatings. These standards cover a specific range of acid and alkaline liquids at room and elevated temperatures. By applying these standards to testing the chemical corrosion resistance of the PERMASTORE® product range customers have the confidence in knowing that a benchmark exists for the performance of our product in a number of environments to an acknowledged set of internationally accepted quality standards.

Permastore publishes the results of the tests carried out in compliance with these standards in its product qualitystandards thus providing customers with the evidence of the stringent tests our product undergoes. In addition Permastore subjects itself to external independent inspection of its compliance with its published quality standards by Materialprufungsamt Nordrhein-Westfalen (MPA NRW) of Germany on a random basis.

We are equipped to offer the customer a range of solutions and advice for the customer to have the confidence to choose products to suit their application, especially when considering the extremes of temperature and pH levels. It is also accepted that in many applications the condensation and gaseous zone in the roof area of the structure is far more aggressive than the tank liquid contents itself.

Many manufacturers appear to only carry out limited tests or not publish any product chemical corrosion testing whatsoever.

See below for our chemical corrosion resistance and physical properties comparison table.

照下さい。

Chemical corrosion test Our products Other maker's products
1) Citric acid,
typical pH2
Tested at both room temperature and boiling.
To EN 14483-1:2004 clause 9
& EN 14483-2:2004 clause 1
No published data on testing carried out to International Standards
2) Boiling or demineralised water
typical pH
To EN 14483-2:2004 clause 13 No published data on testing carried out to International Standards
3) Hot sodium hydroxide,
typical pH 13-14
To EN 14483-4:2004 clause 9 No published data on testing carried out to International Standards
4) Sulphuric acid
typical pH 1
Tested at room temperature.
To EN 14483-1:2004 clause 10
No published data on testing carried out to International Standards
5) Hydrochloric acid
typical pH 1-2
Tested at both room temperature and boiling.
To EN 14483-1:2004 clause 9
& EN 14483-2:2004 clause 12
No published data on testing carried out to International Standards
6) Standard detergent solutions,
typical pH 9-10
Tested to EN 14483-3:2004 clause 9 No published data on testing carried out to International Standards
Note:
All applications are subject to concentration and temperature considerations.
Customers should be aware that although alternative manufacturers may well carry out corrosion resistance testing unless they publicly publish to which international standards they are carried out to there is no benchmark for a comparison of quality.
Physical characteristics test Our products Other maker’s products
1) Impact Tested to ISO 4532 No published data on testing carried out to International Standards
2) Adherence level Tested to EN 10209:Annex D No published data on testing carried out to International Standards
3) Resistance to abrasio Tested to ISO 6370-2 No published data on testing carried out to International Standards
4) Resistance to thermal shock Tested to ISO 2747 No published data on testing carried out to International Standards
5) Scratch hardness Tested to EN 101 No published data on testing carried out to International Standards
Note:
All applications are subject to concentration and temperature considerations.
Customers should be aware that although alternative manufacturers may well carry out corrosion resistance testing unless they publicly publish to which international standards they are carried out to there is no benchmark for a comparison of quality.