Document ID: chunk:federal_register_of_legislation:F2018L01173:body:0:p59
Version: federal_register_of_legislation:F2018L01173
Segment Type: other
Provision Reference: 
Character Range: 152369–155133

the two electrolytes may produce a vigorous, uncontrollable chemical reaction.
Battery chargers and all circuits fed by the battery should be switched off when leads are being connected or disconnected. Whilst individual cell voltages may not present a shock risk, dangerous voltages can exist when a number of cells are connected together in series. A lethal shock needs a current of only tens of milliamps and particular care should be taken when the voltage exceeds 50V.
Ventilation tubes of battery boxes should be examined regularly to ensure that they are free from obstruction.
Lids of battery boxes (if provided) should be fastened while opened for servicing and properly secured again when the work is finished.
Batteries should be kept battened into position to prevent shifting in rough weather.
Batteries should always be transported in the upright position to avoid spillage of electrolyte and in a way that will minimise the risk of injury due to heavy lifting.
Safe and effective means of inspecting and servicing the batteries should be provided by adequate lighting and access to each cell. Personal protective clothing, gloves and a face shield suitable for use with acid should be supplied and worn by seafarers engaged in topping up the batteries. Open flames and naked lights should not be used to inspect battery cells.

12.6              Lead acid batteries
When the electrolyte is being prepared, the concentrated sulphuric acid should be added slowly to the water. If water is added to the acid, the heat generated may cause an explosion of steam, splattering acid over the person handling it.
Goggles, rubber gloves and a protective apron should be worn.
To neutralise acid on skin or clothes, copious quantities of clean fresh water should be used.
An eyewash bottle should be available for immediate use on the eyes in case of accident. This bottle should be clearly distinguishable by touch from acid or other containers, so that it may be easily located by a person who is temporarily blinded.
The corrosion products which form around the terminals of batteries are harmful to skin and eyes. They should be removed by brushing, away from the body. Terminals should be protected by petroleum jelly.
An excessive charging rate causes acid mist to be carried out of the vents onto nearby surfaces. This should be cleaned off with diluted ammonia or soda solution, and affected areas then dried.

12.7              Alkaline Batteries
The general safety precautions with this type of battery are the same for the lead-acid batteries with the following exceptions.
The electrolyte in these batteries is alkaline but is similarly corrosive. It should not be allowed to come into contact with the skin or clothing. In the case of accident the