Technology And Qualification Test 

Qualification tests are required in accordance with international standards as well as national standard of Iran. These tests are said to be long-term because their duration lasts around 10,000 hours (approximately 1.5 years). Qualification tests are carried out for three main objectives:

a. Determination of the long-term mechanical properties of the raw materials used in the pipe structure. It should be taken in account that long-term mechanical strength of 50 years is determined by qualification tests.

b. Gaining results for designing GRP pipes with a useful lifespan of 50 years

c. Performing re-qualification tests to confirm that the raw materials have a consistent formulation and quality (once every 1.5 years)

The most important qualification tests are as follows:

In addition to long-term tests, the following tests are also carried out:

– Resistance to UV rays

– Resistance to abrasion

– Resistance to long-term temperature in high temperatures

– Resistance to fire

– Test of fittings (short-term and long-term)