Chewing 32 times - benefits

This is nothing to do with industrial safety or such sort. However, how I would like share my experience of chewing more number of times.

We read in books about the need for chewing any food item in the mouth for 32 times. However, we are all busy and in hurry due to lack of time, we swallow the food and leave for the work. By this we are taking more food which will add to our weight in the form of fat. Sometimes due to indigestion, we end up in vomittings or suffer with gastric troubles. This is my experience also.

Once, I took food leisurely by chewing more number of times and I found that the quantity of intake is very less. Moreover, I enjoyed my food also. This I did for a few days may be 10 days or so and subsequently I found my weight also reduced by 2 -3 kg.

As it is difficult to stick to good habbits, I could not follow the above method of eating and now my weight is hovering around 85 kg.

A number times, I thought of chewing more times but did not follow it.

Sometimes, we do not take lunch may be with the aim of reducing weight but we end up eating more food in the evening than had we took lunch. So, instead of weight loss, we will gain some more weight.

However, for the last few months, I am taking more banana and this is helping me in having my stomach clean and bowl movements are normal and in time. Only when I am in journey, I find this is disturbed and it will become normal once I am back home.

Importance of Learning

Accidents and near misses are the result of mistakes committed by some one.

On human errors, there is a quotation by the great safety professional, Mr Trevor A. Kletz (retired from ICI, UK and now is about 90 years old),

“Mistakes occur because someone does not know what to do. To prevent them we need better training or instruction or changes to the plant design or work method so that the task is easier”.

It can be due to shop floor person, supervisor, officer during operation, issue of instructions or during design. A mistake can be a part of the system right from the beginning or it could have been committed subsequently.

We all make mistakes. However we can become wise and knowledgeable only when we learn from these mistakes.

Experience makes a man wise. However, experience is not desirable in all aspects.

Again in the words of Mr Kletz in his book, “Still Going Wrong”,

“A high price was paid for safety information mentioned in various sources (like books, films and internet). People were killed or injured and billions of dollars worth of equipment was damaged. Someone has paid the TUTION FEES. There is no need for you to pay them again”.

It only takes one apple to spoil the whole barrel as the old saying goes, and this is time when a group of humans gather together. If one friend or family member is not happy, then their unhappiness can spread to infect the others in the group.

Same can be applied to safety. If a person is unaware / not bothered about safety, he will endanger others also.

If we see the accidents that occurred in any particular industry from its inception or even for that matter for the last few years, can we say that all those accidents that occurred were of first time in nature? It is unlikely and I am sure nobody agrees with this statement. Most of the accidents are of repetitive nature, if not exactly, slightly in a different manner. If we go through the accident and near miss records, we can find similarity in the type of accidents. May be it is not in the same plant but in some other plant under the management of same organization.

Dissemination of information is vital so that all of us can study the accidents and near misses and can see whether IS IT POSSIBLE IN MY PLANT FOR OCCURRENCE OF SUCH AN ACCIDENT. It is important in safety committee meetings held every month that the discussions should be on accidents and near misses occurred in the plant or other plants. Instead, the observation is that mostly discussion goes on pending safety related deficiencies (SRDs) which were already brought to the notice of the plant management by the safety officer and by allocating necessary resources (responsible person, man power, finance, etc), these SRDs can be corrected. Information on accidents, near misses, unusual occurrences etc is normally compiled at corporate level and are sent to all units under the organization after review. This is one valuable source of information on accidents. Similarly, we read such incidents in the newspapers that there is some fire, explosion, electrocution, fall of person, etc with some details. Therefore media is another source. Similarly those who had access for other sources like books (library) or internet can get valuable information.

Seminars can be conducted for employees in which those who were actually involved in accidents directly or witnessed can explain their experience in accidents with the noble cause of saving their colleagues from such accidents. Discussion of these in such seminars, plant meetings, etc creates an awareness about safety and can ignite our minds to take necessary corrective measures so that we can maintain a safe work place.

Most cited reason for fires - Short Circuit

Most of the times I read news papers on fire incidents, the reason told by the owner of the premises or security or fire service department or some one on the road is that it is SHORT CIRCUIT.
Every time I read such a statement and learned people say short circuit is the cause for fire and resultant loss of lives and property, following questions come to my mind.
1. Why not people have a look at electrical wiring / cabling in their building.
2. Why not authorities make it compulsory by way of legislations that electrical audits of buildings by authorized people shall be mandatory? After such audit, the certificate shall be filed along with property tax payment?
3. Such authorized persons must be held responsible once they certify that the building under audit, if declared safety from electrical short circuit hazard is safe, is subjected to fire by short circuit.
4. If the electrical cabling during audit is found to be not satisfactory, then, it should be repaired / replaced within specified period by the auditor (say one or two months). If not, then local town authorities should impose penalty and if not paid, then services like water, electricity, etc shall be disconnected.
5. The vendors of such poor quality cables, switches, etc should be punished by penalties and if repeated, then be imprisoned.
6. Similarly, those who do cabling works should be held responsible, if the fires are due to poor workmanship of such people.
7. Like in industries where it is mandatory to display line diagrams of cabling, same should be made mandatory even for all residential and commercial buildings.

What I feel sometimes is that the short circuit reason is only for showing some reason and claim insurance. Claims should not be settled until the cause is found after due investigation by certified agencies.

The fires caused not only damage the property under fire but also that of others nearby and these buidlings residents have to face hardship because of others, let it be intentional or unintentional.

Sometimes, when a fire incident is reported, it is also brought out that the same building was involved in fire a few years ago. This makes us to think that
i) either the person has learned from earlier incident or
ii) he is doing intentionally to coverup something.

It is therefore made it mandatory that all buildings shall be subjected to electrical and fire safety audits once in every 5 years or so and certificates shall be submitted to town authorities while paying property tax. Else, the property tax shall be increased to such an extent that people should go for audit rather than paying enormous amounts of property tax with penalties for not doing elctrical and fire safety audits.

Lab Safety

Safety is freedom the danger, risk, hazard, so is the meaning found in dictionaries. All of us are concerned about our wellbeing and of others, (mostly) known and (sometimes) unknown.

While doing an activity, consciously and / or unconsciously we keep assessing the dangers in that activity and we take appropriate measures for overcoming those dangers. However, to assess / know the hazards / dangers in a work, we should have knowledge about the nature of work, the materials to be handled both manually and mechanically, the work procedure, the skills required, the persons involved, etc. Apart from these, we also should know about the area at which the work is to be done, the surroundings, the layout, the type of help that will be available in case of emergency, the exit routes, the rules and regulations of the land, etc. So, it requires lot of information to carryout a work safely so that nobody will be exposed to the dangers before, during and after the work. We give lot of importance and attention on activities in plant operations, fabrication shops, workshops, transportation, etc.

However, little attention is paid to safety during various activities in laboratory. Laboratory is a place, where we do research on small scale to establish a process, analyse various materials to know the composition, etc. Laboratory plays an important role in the establishment and various chemicals are handled for which we may not know about the dangers in handling them. The dangers can be in the form of toxicity, fire or explosion. Similarly there are dangers due to electricity, which will be used for heating, mixing, ventilation, illumination, etc. Then, big laboratories will have associated workshops to meet their various requirements, because standard equipment may not be available in the market and therefore they have to be made to the requirement of the researcher or analyst. The dangers in workshop are due to material handling, electrical and from the machines like lathes, grinders, welding sets, cutting machines and cranes and hoists. When, we start thinking about safety in lab, slowly and progressively we start identifying hazards that are present in scaled up plants and we realize that we can’t ignore safety of the people working in laboratories.

This leads us to think big and draw up a safety plan for laboratory. So what is required?

1. A well planned layout for lab, with marked locations of rooms, equipment, office rooms, storage area, air handling units for supply and exhaust ventilation, transformers, power distribution boards (PDBs), emergency exits, fire extinguishers, first aid rooms, workshop, change rooms, etc.

2. Material safety data sheets (MSDS) of the chemicals to be handled, which are available in internet in web sites like www.ilo.org, etc or if not available consult with the supplier of the chemicals. MSDS gives information about physical and chemical properties, non-compatible reactions, transportation of chemicals, measures to be taken for safety during handling and in case of emergency, spillages, etc.
3. Types and quantities of various wastes generated, storage and handling and their disposal procedure.
4. Storage of chemicals at lab stores and in the lab.
5. Power distribution and their connections to the equipment, rooms, earthing connections of equipment, earth stations / pits, earth pit and grid resistance levels to be maintained, etc.
6. Location and routing of service systems like water, air, etc.
7. Off-gas exhaust system that includes piping / ducting, filters, scrubbers, exhaust fans, discharge location (so that exhaust does not become supply for other building’s ventilation system).
8. Drains, their routing, hazards in mixing of various drains to a common drain.
9. Availability of emergency power, water, ventilation for crucial equipment / rooms.
10.Gas cylinder bank storage, movement trolleys, piping / hoses including connection arrangement, pressure regulators, pressure relief valves, monitors / detectors, exhaust system for storage.
11.Mechanical material handling systems like hoists, cranes, pallet trucks, trolleys, safe working loads (SWL), etc.
12.Location of emergency showers and eye wash fountains, availability of water, their quality, maintenance.
13.Personal protective equipment (PPE) like nose masks, respirators, goggles, face shields, aprons, suits, hand gloves, shoes, helmets.
14.In Service Inspection (ISI) requirement for various equipment like furnaces, hoods, supply and exhaust system, PDBs, process and service piping, etc.
15.Maintenance and testing procedures for equipment, electrical systems, fire extinguishers, etc.
16.Minimum inventory of chemicals, essential spares for equipment, tools, etc.

The list goes on as one thinks of and this requires constant and continuous assessment of activities for hazards and based on the activities and hazards in it, appropriate corrective measures have to be taken to minimize the hazards to acceptable levels. Some of the corrective measures in the order of priority from first to last are,

Elimination – Stop use or preparation of chemical so that the hazard can be totally avoided.
Substitution – Find an alternate chemical or method by which the level of hazard can be reduced to acceptable levels.
Administrative – Devise and implement administrative controls so that safe handling can be ensured.
Training – Provide training and retraining to people so that they understand what they are doing, hazards in it and protective measures to be followed and what to do in case of any emergency.
PPE – Use of personal protective equipment (PPE) is the last line of defense and PPE as appropriate to the need is to be used correctly so that persons will be protected when all other lines of defense mechanisms fail.

Finally, an emergency plan should be available for meeting all possible situations, mock drills have to be conducted to ensure that every body understands what is their role and responsibility in an emergency and drawbacks found in mock drills are to be corrected so that a fool-proof emergency plan will be in place.

Finally, I want to remind all concerned about Murphy’s Law, which states, “If something can go wrong, it will and what is more, it will probably happen when we are least expecting it. It may also occur at the worst possible moment, when we are least able to react quickly and effectively because, we have our hands already full or our attention is elsewhere”.

And, “Those who cannot remember the past are condemned to repeat it - George Santayana”

For those who are interested in safety, a number of e-books are available at www.ebookee.com and www.esnips.com. Apart from these, accident investigation reports are available at www.csb.gov and www.hse.gov.uk.

Wish you all a safe lab experience.