Class 8 Corrosive Liquids Learning Tool T-1030

1. Class 8 Corrosive Liquids Learning Tool T-1030 This work has been produced by DGL (Aust) Pty Ltd This Learner’s Tool is about the skills and knowledge required to store and warehouse Class 8 Corrosive Liquids at DGL (Aust) facilities. This includes operational requirements for the safe and efficient control of all functions and effective management of hazardous situations.

2. Before you get started • It is important that you complete all sections in this learning tool as it has been designed so that • You can abide by the procedures of our organization. • You can apply what you have learnt in this package in your day to day activities • This Learning Tool is designed to be relevant only to DGL (Aust) Pty Ltd employees and only applied whilst employed with DGL (Aust) Pty Ltd • You may have already acquired knowledge in the area identified in this package as you may have completed some specialized training. Or you may have been working within the industry for some time. Should you identify any improvement opportunities in the information contained in this package or have difficulties completing the package please contact National Training and Compliance Manager DGL (Aust) Pty Ltd PO BOX 1594 EAGLE FARM QLD 4009 Ph 07 3868 1001 Fax 07 3868 1055

3. Definition of a Class 8 • A class 8 product is defined as • Class 8 substances (corrosive substances) are substances which, by chemical action, will cause severe damage when in contact with living tissue, or, in the case of leakage, will materially damage, or even destroy, other goods or the means of transport. • (Note 1) • Note (1) Source the Australian Dangerous Goods Code 7th Edition page 127

4. Properties of Class 8 • Acids and bases have a common property: they are corrosive. The corrosiveness is defined in contact with living tissue but acids and bases attack many other materials as well. They react with metals producing hydrogen gas which is highly flammable. • Acids and bases may have toxic properties and some are also flammable as such. Acids and bases are often transported, used and disposed as water solutions. • Some acids, such as nitric acid and hydrochloric acid, release highly corrosive vapours at room temperature when in a concentrated form. • Anhydrides are compounds which have properties similar to those of acids, and they react with water forming the corresponding acids; for example acetic anhydride and water produce acetic acid. • When an acid and a base are mixed they neutralize each other producing a salt and water. Neutralization also produces heat. Mixing an acid or a base with water also involves a rise in the temperature of the solution. This may create hazards, such as splashes and formation of dangerous mists. • The pH is the scale used to compare the level of acidity and alkalinity of various acids and bases and their diluted solutions. The pH is related to the amount of hydrogen ions present in the solution. The pH of a neutral solution or substance is 7. Acids have a pH of <7 and bases of >7. To control and prevent adverse effects of acids and bases on health, several countries have set occupational exposure limits. These limits for acidity are: pH less than 2 (1.5 in some countries) and for alkalinity: pH 12-14 (11.5-14 for some countries). Acids can be referred to as inorganic (mineral) acids or as organic acids. Examples of mineral acids are sulphuric acid, hydrochloric acid and nitric acid. Salicylic acid, ascorbic acid and acetic acid are organic acids. • (Note 2) • Note (2) International Programmeon Chemical Safety Page 2 • Note (2) Source the Australian Dangerous Goods Code 7th Edition page 129

5. Class Label for Class 8 • Skin of hand on Model No. 8 may be white or shaded grey • (Note 1). Note (1) Source the Australian Dangerous Goods Code 7th Edition page 428

6. Classification of Class 8 Products • Packing groups are assigned to corrosive substances in accordance with the following criteria: • (a) Packing group Iis assigned to substances that cause full thickness destruction of intact skin tissue within an observation period up to 60 minutes starting after the exposure time of three minutes or less; • (b) Packing group IIis assigned to substances that cause full thickness destruction of intact skin tissue within an observation period up to 14 days starting after the exposure time of more than three minutes but not more than 60 minutes; • (c) Packing group IIIis assigned to substances that:(i) cause full thickness destruction of intact skin tissue within an observation period up to 14 days starting after the exposure time of more than 60 minutes but not more than 4 hours; or(ii) are judged not to cause full thickness destruction of intact skin tissue but which exhibit a corrosion rate on either steel or aluminium surfaces exceeding 6.25 mm a year at a test temperature of 55 °C, when tested on both materials. (Note 1) • Note (1) Source the Australian Dangerous Goods Code 7th Edition page 127

7. Storage • Package stores for corrosive substances, other than indoor storage cabinets, shall comply with the following general requirements, as appropriate: • (a) Stores shall be located on a floor that has immediate access from outside the building. • (b) At least two means of access shall be provided to stores having a floor area greater than 25m 2. • (c) Stores shall be designed, constructed and operated in a manner that will allow the housekeeping requirements to be carried out effectively. • (d) All materials used for the construction of stores shall have corrosion resistance appropriate to the type of store and the materials to be kept, or be lined with corrosion-resistant materials. • (e) All areas used for decanting shall have floors that are sealed and are drained to a suitable compound. • (f) Lighting shall comply with – • (i) lighting, of sufficient luminance as to enable a person to easily read all markings on packages, signs, instruments and other necessary items, shall be available in areas where people are working; • (ii) interior lighting shall be of at least the luminance specified in AS/NZS 1680.1 and AS/NZS 1680.2.4; and • (iii) sufficient lighting shall be available on any internal roads which lead to areas, rooms or buildings where dangerous goods are kept or handled and which might be used by people during work at the premises. • (g) Adequate ventilation shall be provided in all stores and at places where packages are opened. • NOTE: Ventilation should be sufficient to maintain exposure levels in the storage area below recommended workplace exposure standards. • (h) Stores, other than those for closed lead-acid batteries, shall be provided with a means of either containing a spill or of diverting it to a compound within the boundaries of the premises. The net capacity of any compound shall be not less than whichever is the greater of— • (i) 25% of the aggregate volume of liquids kept; or • (ii) the capacity of the largest container kept; but need not exceed 5000 L where only packages are kept.

8. Storage continued • (i) Packages shall be kept in a manner such that they cannot fall and cause spillage outside the compound. • (j) Storage areas shall be secured against unauthorized entry. • (k) Where provided, and except where they are designed as spill trays or compounds, racks or shelves shall be designed and constructed in such a manner as to prevent the accumulation or pooling of liquid. • (l) Where racking is used, the layout of racks shall be such as to provide clear passage for escape of personnel. • NOTE: It is recommended that the width of aisles between racks be not less than 1.2 m. • (m) Where packages are kept in stacks, the stacks shall be arranged in such a manner as to minimize the possibility of stack collapse and to prevent damage to packages in lower layers from loadings exerted by the upper layers. • (n) In stores and associated handling areas where flammable gases may be generated (e.g. where lead-acid batteries are being charged) a hazardous zone, as described in AS/NZS 2430 series, may exist. In such a case, all electrical equipment in such hazardous zones shall be suitable for use in those zones. • (o) The following items shall be provided within 10 m of, but not nearer than 2 m to, stores where packages are opened: • (i) Except that a domestic shower may be an adequate substitute in locations presenting a lesser degree of risk, e.g. in service stations where batteries are handled, a safety shower complying with AS 4775 or a plunge bath. • (ii) Eye-wash facilities complying with AS 4775. • (iii) Water for the washing of hands. • (p) For stores where packages remain closed at all times, appropriate gloves, and water for the washing of hands shall be provided. • (Note 1) • Note (1) Source the Australian AS 3780-1994 The storage and handling of Corrosive Substances page 17 & 18

9. Management of Leaks • General • Every endeavour shall be made to prevent leaks or spills, and to control them if they do occur; clean-up action shall be initiated immediately. Leaked or spilled corrosive substances shall be kept and disposed of in accordance with your state waste disposal regulations. • Clean-up materials and equipment • In order to deal with leaks and spills (whether major or minor), clean-up equipment, chemicals for neutralizing or decontaminating spills and absorbent materials shall be maintained at every premises on which corrosive substances are kept or handled. A typical list of appropriate items is as follows: • (a) Adequate quantities of absorbent material, e.g. sand, fuller’s earth or suitable proprietary substances. • (b) Calcium hydroxide (hydrated lime), for use on acidic spills. • (c) Sodium bisulfate, for use with alkaline spills. • (d) Crushed calcium carbonate (limestone). • (e) A sufficient number of resealable waste-recovery containers, e.g. drums, made of materials compatible with the substances being kept and appropriately marked as being for emergency use only. • (f) Approved containers made of appropriate materials, for the purpose of repackaging the contents of any leaking packages. • (g) Portable pumps and decanting equipment. • (h) Shovels.

10. Management of Leaks Continued • Clean-up procedures • At every occurrence of a leak or spill, the emergency plan shall be implemented and consideration shall be given to notifying the emergency services. • Leaking packages shall be positioned in such a manner as to stop or minimize the leak and, if necessary, shall be moved to a safe location. Either the package should be placed in a suitable container, e.g. a plastic bag or an oversize drum, or its contents should be transferred to a clean packaging. The exterior of such clean packaging shall be clearly labelled in accordance with NOHSC: 3013 and with the ADG Code and the SUSDP, as appropriate. • Small spills on the floor, or on the walls or structures of a building, should be absorbed, and • the absorbent placed in a suitable waste container for disposal. • Note (1) • Note (1) Source the Australian AS 3780-1994 The storage and handling of Corrosive Substances page 34

11. Personal Habits • All persons whose work involves handling of corrosive substances shall comply with the following directions: • (a) Do not introduce, keep, prepare or consume any food or drink, or use tobacco, in any area where corrosive substances are kept or handled. • (b) After handling corrosive substances, always wash your hands before eating, drinking, smoking or using the toilet, and after work. • (c) Immediately attend to injuries caused by contact, or suspected contact, with corrosive substances. • The above directions, or wording to the same effect, shall be prominently displayed in the work area. • Note (1) • Note (1) Source the Australian AS 3780-1994 The storage and handling of Corrosive Substances page 36 & 37

12. First Aid • A first aid station shall be provided in a clean area. It shall comprise, as a minimum, an appropriate first aid kit and first aid instructions, e.g. MSDS, for all corrosive substances being kept or handled on the premises. • It is recommended that— • (a) at least one person on the premises is trained in first aid; and • (b) a list of persons trained in, and designated as being responsible for the administering of, first aid should be shown on all notice boards on the premises. • The first aid procedures set out in the relevant MSDS should be adopted. • Note (1) • Note (1) Source the Australian AS 3780-1994 The storage and handling of Corrosive Substances page 38

13. Test your knowledge • Through the following slides you will be asked an number of questions to show that you have understood the content of this learning tool • Please record your answer on the training form F-260. • You will be required to submit the answers to the DGL HSEQ unit

14. Question 1 • What is a Class 8 Substance generally called? • a) An Acid • b) An Alkaline • c) Corrosive Substance • d) A Flammable Acid

15. Question 2 • What highly flammable substance is created when a corrosive substance react with metal? • a) Liquid Petroleum Gas • b) Helium Gas • c) Tear Gas • d) Hydrogen Gas

16. Question 3 • What is the range of a PH scale? • a) 1 - 15 • b) 1 - 14 • c) 1 - 12 • d) 1 - 16

17. Question 4 • When a substance is classified into a packing group of II within how many days can you start to see a destruction of intact skin tissue if you have been exposed for more then 3 minutes but less then 60minutes? • a) 14 days • b) 7 days • c) 3 days • d) 1 day

18. Question 5 • If a store is greater then 25m2 at least how many access point should there be? • a) no less then 3 • b) no less then 1 • c) no less then 2 • d) no less then 4

19. Question 6 • What would you use on alkaline spills? • a) Calcium hydroxide • b) Crushed calcium carbonate • c) Water from the hose • d) Sodium bisulfate

20. Question 7 • How quickly should you attend to a caused by contact, or suspected contact, with corrosive substances? • a) When it starts to burn • b) Immediately • c) When you get home • d) When your flesh is present

21. Question 8 • How many persons are recommended be trained in first aid when you have class 8 on site? • a) At least 1 • b) Minimum of 2 • c) At least 3 • d) No more then 4

22. Additional information • For more information on Class 9 products the following sources may be of assistance • Australian Dangerous Goods Code 7th Edition • Available to all DGL employees via the company’s intranet • AS 3780-1994 The storage and handling of Corrosive Substances • Available to all DGL employees via the company’s intranet • International Programme on Chemical Safety