Appendix 3 – Precautions Regarding The Use of Dangerous Materials
Clasification Society 2024 - Version 9.40
Statutory Documents - IMO Publications and Documents - Resolutions - Maritime Safety Committee - Resolution MSC.288(87) – Performance Standard for Protective Coatings for Cargo Oil Tanks of Crude Oil Tankers – (Adopted on 14 May 2010) - Annex – Performance Standard for Protective Coatings for Cargo Oil Tanks of Crude Oil Tankers - Annex 1 – Test Procedures for Coating Qualification for Cargo Oil Tanks of Crude Oil Tankers - Appendix 3 – Precautions Regarding The Use of Dangerous Materials

Appendix 3 – Precautions Regarding The Use of Dangerous Materials

  1 The test methods involve the use of materials that may be hazardous to health as follows:

  • .1 Sulphur Dioxide: Corrosive when wet, toxic if inhaled, causes burns, and is an irritant to the eyes and respiratory system.

  • .2 Hydrogen Sulphide: Highly flammable (Flash point of -82°C), can form an explosive mixture with air, corrosive when wet, causes burns, has to be kept away from sources of ignition, irritant and asphyxiant, LTEL 5 ppm, STEL 10 ppm, higher concentrations can be fatal and have no odour. Repeated exposure to low concentrations can result in the sense of smell for the gas being diminished.

  • .3 Benzene: Highly flammable (Flash point of -11°C), can form an explosive mixture with air, toxic, carcinogenic, acute health risk.

  • .4 Toluene: Highly flammable (Flash point of 4°C), can form an explosive mixture with air, irritant, acute health risk, reprotoxin.

  2 Special test apparatus and precautions may be required depending on the regulations in force in the country where the tests are carried out.

  3 Although some countries have no specific requirements preventing either of the tests being carried out, it shall anyhow be required that:

  • .1 a risk assessment of the working conditions is carried out;

  • .2 during the test period, the system shall be enclosed; and

  • .3 the environment shall be controlled, particularly at the start and end of the tests, suitable air exhaust shall be available and personal protective equipment shall be worn.


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