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Test apparatus according to ISO 28706-2

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This test equipment is used for the determination of the resistance of flat surfaces of vitreous and porcelain enamels to boiling acids, boiling neutral liquids and/or their vapours, according to ISO 28706-2.

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This test equipment is used for the determination of the resistance of flat surfaces
of vitreous and porcelain enamels to boiling acids, boiling neutral
liquids and/or their vapours, according to ISO 28706-2.

This apparatus allows the determination of the resistance of vitreous and porcelain
enamels to the liquid and vapour phases of the corrosive medium simultaneously.

Principle
A set of similarly enamelled test specimens is placed in the liquid zone 
and/or in the vapour zone of the test apparatus, as required, and exposed 
to attack by a boiling acid or neutral liquid, or its vapour, under specified conditions.

The same design of test apparatus and the same test principle is employed 
for the different liquids.

The loss in mass is determined and used to calculate the rate of loss in mass
per unit area and, if necessary, the corrosion rate.

General description
The test apparatus consists of a cylinder, having a standard socket
for holding a reflux condenser with a graduated collector on one side.

The cylinder is heated externally by a heater placed round the lower half of the cylinder

The electrical heater is controlled by an electronic temperature controller.

Applicable test methods
Equipment is suitable for enamel testing in accordance with the following standards :

DEZ-MB 7.3.2 enamel resistance against boiling water by long-term exposure
DEZ-MB 7.3.3 enamel resistance against drinking water
DEZ-MB 7.4.2 enamel resistance against hot soda solution
DEZ-MB 7.4.4 enamel resistance against boiling sodium-pyrophosphate solution

DIN/ISO 2742 enamel resistance to boiling citric acid 
DIN/ISO 2743 enamel resistance to condensing hydrochloric acid vapour 
DIN/ISO 2744 enamel resistance to boiling water and water vapour
DIN/ISO 2745 enamel resistance to hot sodium hydroxide

DIN/ISO 28706-2 enamel resistance to boiling acids, boiling neutral liquids and/or their vapours

EN 14483-2 enamel resistance to chemical corrosion
IS 3972 part 2 sec 1 enamel resistance to citric acid

The equipment designed in accordance with ISO 28706-2, which replace DIN/ISO 2733 respectively DIN/ISO 2734 

Scope of supply
Our supply include the following components:

- 1 Glass cylinder with stubs
- 1 Reflux condenser
- 1 Graduated collector
- 1 Ring heater
- 1 Microprocessor-based temperature controller with digital display
- 1 Packing set, either type A, B or C**
- 1 Set of bolts, nuts & washers

**The appropriate packing may vary per utilized reagent. Please specify the appropriate packing type(s) when ordering

Please click on the hyperlinks below for related topics :
Applicable standards
Spare, wear & tear parts for "Vetter prufgerate"
- Auxiliary equipment for enamel tests according to ISO 28706-2

Data sheet

StandardISO 28706-2

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Test apparatus according to ISO 28706-2

Test apparatus according to ISO 28706-2

This test equipment is used for the determination of the resistance of flat surfaces of vitreous and porcelain enamels to boiling acids, boiling neutral liquids and/or their vapours, according to ISO 28706-2.

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