Scheduled Waste Labelling, Code Guide and Common Mistake

This guide is meant for waste generator as reference. I will only discuss waste code that are allowed for us to store, please refer here.


Labelling :

Every containers of scheduled waste must be properly label for identification and warning purposes. It has been clearly mention in regulation 10, of Environmental Quality (Scheduled Waste) Regulation 2005.

Regulation 10. Labelling of scheduled wastes :
(1) The date when the scheduled wastes are first generated, name, address and telephone number of the
waste generator shall be clearly labelled on the containers that are used to store the scheduled wastes.

(2) Containers of scheduled wastes shall be clearly labelled in accordance with the types applicable to
them as specified in the Third Schedule and marked with the scheduled waste code as specified in the
First Schedule for identification and warning purposes.

(3) No person is allowed to alter the markings and labels mentioned in sub regulations (1) and (2).


Labelling can be divided into two part :

1) Part 1 - Identification

In this part, information about the scheduled waste must be display. The information must include the name of scheduled waste, code of the scheduled waste, date of generation, name of waste generator, address of waste generator and their phone number. Below is the example of basic sticker can be used :

2) Part 2 - Hazard label

This is the label used to display the characteristic of the scheduled waste, is it toxic, flammable, oxidizing,  irritant, corrosive, explosive etc.  The label shall be a square set at an angle of 45 degrees
and the dimension shall not be less that 10 cm by 10 cm except where the size of the container or package warrants for a label of smaller size.

Example of common hazard label used for scheduled waste :



Notice there is an asterisk symbol (*) at the bottom of each hazard label, this is to distinguished scheduled waste from any other substances.


Example : Sticker used by us


The label or stickers used can be in two pieces, one piece identification label and one piece hazard label; or both identification label and hazard label on a single sticker. One container can have more than one piece of hazard label depending the hazard it can caused. All labels should be able to withstand weather exposure such as rain or high temperature. This mean, using an A4 paper is not acceptable.


Single Sticker                                                                                                        Dual Sticker

Fail to provide both label on every containers of scheduled waste may result in compounded by DOE and we will reject that containers from collection and storage.


Code Guide and Common Mistake:

SW 1 Metal and metal-bearing wastes

1) SW 101 - Waste that contains arsenic or its compound. Use "Toxic" as hazard label.

2) SW 102 - Waste of lead acid batteries in whole or crushed form. Common use in vehicles or machinery which contains acid as electrolytes and lead plates as anode and cathode .  Use "Toxic" and "Corrosive" as hazard label.



3) SW 103 - Waste of batteries containing cadmium and nickel or mercury or lithium. Common name, "dry-cell" batteries. Often used as rechargeable batteries found in cell phones, watches, laptop, power bank, cameras, etc. Some household batteries especially zink-carbon batteries are often mistaken as scheduled waste. Please read label on every batteries. Use "Toxic" as hazard label.

Zink-Carbon batteries - not a scheduled waste

Nickel-Cadmium rechargeable batteries

  Rechargeable lithium batteries



4) SW 104 - Selplex waste - active component Selenium. Use "Toxic" as hazard label.

5) SW 109 - Waste containing mercury or its compound. Often found in thermometer, thermostat, barometer and fluorescent tubes. Fluorescent tubes sometimes mistaken as e-waste. The fact is, its active component is mercury. Use "Toxic" as hazard label.


6) SW 110 - E-Waste or electronic waste. Define as discarded consumer and business electrical devices or electronic equipment which their components contain materials that render them hazardous. This devices could be cell phones, chargers, computers, printers, oven, refrigerators, television, electronic devices, printed circuit boards, scanners  or anything that has electronic component in it and etc. Some waste generators wrongly declare printer toner as E-waste because they thought it is part of printer. Use "Toxic" as hazard label.



SW 2 Wastes containing principally inorganic constituents which may contain metals and organic materials

7) SW 201 - Asbestos wastes in sludge, dust or fibre forms. Use "Toxic" and "Carcinogenic" as hazard label because it may cause cancer.

8) SW 206 - Spent inorganic acids. Acids derived from one or more inorganic compounds or mineral sources and also known as mineral acid. Inorganic acids differ from organic acid because they do not contain carbon and highly reactive with metals. Ex : Hydrochloric acid (HCL), Nitric acid (HNO3), Sulfuric acid (H2SO4), Boric acid (H3BO3), etc. Appropriate hazard label is "Corrosive".

SW 3 Wastes containing principally organic constituents which may contain metals and inorganic material

9) SW 305 - Spent lubricating oil. Often found in vehicles engine, machinery, etc. to prevent metal surface from wear. Common mistake done by waste generator is in the use of hazard label. Some waste generator uses "Inflammable liquid" which is wrong. Liquid that are flammable must have a flash point equal to or greater than 21oC and less than or equal to 55oC. A typical automotive engine oil will have a flash point between 218oC and 238oC. Appropriate hazard label should be "Toxic".


= is wrong


= Is Right

 Another mistake done by waste generator especially from RIG and Supply boat, is declaring "Cooking Oil" as Scheduled Waste. The fact is, cooking oil is not a scheduled waste.


10) SW 306 - Spent hydraulic oil. A non compressible oil to transfer power within hydraulic system. Usually used in forklift, crane, marine vessel, aviation control system, lifting machinery, etc. Common mistake similar to SW 305, on the use of hazard label. It should be "Toxic" and not a "inflammable" hazard sticker.


11) SW 309 - Oil-water mixtures. Any water that has been contaminated by oil. Example, ballast water. Use "Toxic" hazard label as a base. Add flammable if the oil is flammable.

    IF NECESSARY ADD           

12) SW 310 - Sludge from oil storage tank. Often the result of oil tank cleaning. Use "Toxic" hazard label as a base. Add inflammable if the sludge is flammable.


13) SW 311 - Waste oil or oily sludge. Any discarded oil or sludge that are not in the other category. Hazard label may be varies depending on the waste component and the origin. Use "Toxic" hazard label as a base and add other hazard label when necessary.

    IF NECESSARY ADD                   OR         

14) SW 322 - Waste of non-halogenated organic solvents. This type of organic solvent does not contains halogen atoms such as fluorine, chlorine, bromine or iodine. Example : methanol, ethanol, acetone and Ethyl Acetate. All this solvent are considered highly inflammable. Use "Toxic" and "Inflammable" hazard label.






15) SW 327 - Waste of thermal fluids (heat transfer) such as ethylene glycol. Use "Toxic" hazard label.

SW 4 Wastes which may contain either inorganic or organic constituents

16) SW 402 -  Spent alkalis with pH more or equal to 11.5 which are corrosive or hazardous. Example : Caustic soda (Sodium hydroxide), caustic potash (Potassium hydroxide), Calcium hydroxide, etc. Use "Toxic" and "Corrosive" hazard label.




17) SW 403 - Discarded drugs containing psychotropic substances or containing substances that are toxic, harmful, carcinogenic, mutagenic or teratogenic. Mainly came from clinics and hospitals. Use "Toxic" hazard label as a base.


18) SW 408 - Contaminated soil, debris or matter resulting from cleaning-up of a spill of chemical, mineral oil or scheduled wastes. Use "Toxic" and "Miscellaneous" hazard label as base.


19) SW 409 - Disposed containers, bags or equipment contaminated with chemicals, pesticides, mineral oil or scheduled wastes. Example: Empty drums previously contains chemical or oil, contaminated empty carboy, cans, pail, bucket, plastic or paper used for chemical container, etc. Use "Toxic" hazard label.


20) SW 410 - Rags, plastics, papers or filters contaminated with scheduled wastes. Use "Toxic" and "Miscellaneous" hazard label.


21) SW 416 - Sludge of inks, paints, pigments, lacquer, dye or varnish. Use "Toxic" as hazard label.


22) SW 417 - Waste of inks, paints, pigments, lacquer, dye or varnish. Usually came in a form of printer cartridges or tonner and expired paint that has not been mixed with thinner. Use "Toxic" as hazard label.


23) SW 418 - Discarded or off-specification inks, paints, pigments, lacquer, dye or varnish products containing organic solvent. Example, paint that has been mixed with thinner. Use "Toxic" and "Inflammable" hazard label.


24) SW 421 - A mixture of scheduled wastes. Use "Toxic" and "Miscellaneous" or other hazard label when necessary.





25) SW 422 - A mixture of scheduled and non-scheduled wastes. Use "Toxic" and "Miscellaneous" as base hazard label and add other label when necessary.




26) SW 429 - Chemicals that are discarded or off-specification. Use "Toxic" as base hazard label and add other label when necessary.



27) SW 430 - Obsolete laboratory chemicals. Use "Toxic" as hazard label and other label when necessary.




Some common mistake examples :


1) Containers without any label or sticker.

2) Multiple containers share 1 single sticker with multiple scheduled waste code and without waste generator details.


3) Label without date of first generation.


4) Label with wrong scheduled waste code and without proper contact number.


5) Label with wrong scheduled waste code, wrong waste name and improper contact number.


6) Container with origin chemical sticker still intact and not removed.