The public inquiry into the Stockline factory explosion will be published on Thursday.
Nine workers were killed when the ICL plastics factory in Maryhill, Glasgow, blew up five years ago.
A further 33 people were seriously injured in the blast, which was caused when a build-up of leaking gas ignited.
Lord Gill’s report will be published at noon.
This public inquiry was launched in July 2008 and was held in a community hall just a short distance away from the site of the explosion.
The first phase of the report examined the circumstances which led to the blast on May 11, 2004.
It found how the ICL factory was housed in an ageing Victorian building.
Witnesses described how no proper checks had been made on corroded pipes that had been installed in the 1960s, despite concerns being raised by health and safety officers.
The explosion was caused by gas leaking from these pipes in a basement.
The company’s owners - ICL Tech Limited and ICL Plastics Limited - were fined £400,000 in August 2007 after admitting health and safety breaches.
In the second stage of the inquiry, Lord Gill heard from gas companies and the health and safety executive.
The aim of Lord Gill’s study is to prevent a similar tragedy happening in the future and to issue any recommendations which he sees fit.
