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March 28, 2012

Confined space and gas detectors

Thanks to S.Selvam for sending news about an incident where the gas detector used for confined space tests was out of calibration.Read about the incident in this link.
 Another article by Concept Controls mentions the following:
'There has never been a consensus among manufacturers regarding how frequently confined space gas detectors need to be calibrated. However, manufacturers do agree that the safest and most conservative approach is to verify the
performance of the instrument by exposing it to known concentration test gas before each day’s use. This functional “bump test” is very simple and takes only a few seconds to accomplish. It is not necessary to make a calibration adjustment unless the readings are found to be inaccurate. The regulatory standards that govern confined space entry
procedures are in agreement with this approach'.

Read the article in this link.

Contribute to the surviving victims of Bhopal by buying my book "Practical Process Safety Management"

March 26, 2012

Lessons to learn from safety report of Railways

The Indian railways high powered committee on rail safety has published its report. There are two recommendations in the report which also apply to process safety management in India. I am quoting from the report: "There is no practice of independent safety regulation by an independent agency separate from operations. The Railway Board has the unique distinction of being the rule maker, operator and the regulator, all wrapped into one. Commissioners of Railway Safety though considered to be the safety watchdogs have negligible role at the operational level. Compliance of safety standards set by Railways for themselves are often flouted for operational exigencies. The Committee has recommended a statutory Railway Safety Authority (RSA) and a safety architecture which is powerful enough to have a safety oversight on the operational mode of Indian Railways without detaching safety with the railway operations. The Committee has also recommended measures to strengthen the present Railway Safety Commission to undertake meaningful regulatory inspections" IR suffers from ‘IMPLEMENTATION BUG’. Implementation of accepted recommendations of the previous safety committees has been a major issue. The Committee has recommended an empowered group of officers in Railway Board to pilot the implementation of the recommendations in a time bound manner with full funding. The Committee has also recommended the review of implementation of recommendations by the new statutory outfit of Railway Safety Authority under Government of India. In India, we need to make PSM mandatory and bring an independant investigating authority like the CSB. Also, the recommendations of safety audits need to be followed up. Read the full report in this link.

March 20, 2012

Capacitor failure incident

An interesting incident of a capacitor failure aboard a ship is reported.
Chemical plants use capacitor banks to improve power factor and there are lessons to learn from this incident.
Read about the incident in this link.

March 18, 2012

Fire in Chemical Tanker

A fire has been reported in a chemical tanker in Mumbai. It appears that toluene was unloaded and "stripping" operations were on when the fire occurred.
Read about it in this link.
UPDATE: An explosion has occurred in the same vessel reportedly injuring 7 petrsonnel, one critically. Read about it in this link.

Contribute to the surviving victims of Bhopal by buying my book "Practical Process Safety Management"

Murphy's technology laws

I came across some interesting technology laws from Murphy! The best I liked were:
  1. "The degree of technical competence is inversely proportional to the level of management.
  2. Logic is a systematic method of coming to the wrong conclusion with confidence.
  3. Technology is dominated by those who manage what they do not understand". 
No harm intended to anyone......but it is of relevance to PSM today!!!!
Read many good ones in this link