The Queensland Industrial Relations Commission yesterday ordered the Queensland Teachers Union -- which has refused Federal Education Minister Julia Gillard's instructions to hold the NAPLAN tests -- to go ahead with the national aptitude test between May 11-13.

The union could face a fine up to $100,000 if it continues to defy the Industrial Relations order.

The move would be part of Education Queensland's statewide $4 million plan to have 6000 casual and relief teachers ready to hold the tests.

Queensland Teachers Union president Steve Ryan said the union's position had not changed in relation to the tests but said the executive would meet tomorrow.

This is not an industrial matter and should have never been allowed to go into the industrial commission, he said.

It is a professional matter and is something that teachers hold very dear to their hearts.

Teachers threatened a boycott of the national tests after the Federal Government refused to back down on information provided on its controversial My School website.

The Australian Education Union and its branches, including the QTU, want league tables banned which rank schools and new measures put in place to stop test results being misused and inaccurate information being placed on the website.

Southport Primary School Parents and Citizens Association president Ralph Reilly said parents would prefer the issue to be resolved but said the school community was behind its teachers.

If the only way the education union can resolve the issue is to withhold the results, then that is what they should consider doing, he said.

The industrial commission ruling yesterday was the second on NAPLAN tests, aimed at reaffirming the first directive which the QTU said it would defy.