HAZARDOUS WASTES MANAGEMENT Flashcards
What is DAO 2013-22?
Revised Procedures and Standards for the Management of Hazardous Wastes
Present unreasonable risk or hazard to the health and safety
of the people and the environment.
Hazardous Wastes
Refers to substances that can create fire under certain conditions.
lgnitability
Refers to material with pH values less than 2 and pH values greater than 12.5.
Corrosivity
Refers to substances that are unstable under normal conditions and readily undergo
violent reaction without detonation (i.e. oxidizing/reducing).
Reactivity
Refers to substances that can cause acute or chronic health risks.
Toxicity
Must be compliant with the following requirements
detailed in the DAO 2A13-22.
Chemical Wastes Storage Facilities
Laboratory chemical wastes can be classified into two main group.
- Solid Wastes
- Liquid Wastes
Certain type of hazardous wastes requires an appropriate type of container to prevent leakage and undesirable reactions.
Appropriate containers per type of wastes
Allowed vessels, containers, tanks, and containment buildings for waste storage.
Allowed waste containment
The maximum hazardous waste accumulation time is** one (1) year**, except for wastes that have no existing infrastructure for proper treatment and disposal.
Storage time limits
Hazardous wastes generated in the laboratory should be
labelled properly based on their hazards.
Proper labelling of hazardous wastes
Also used to determine the hazards posed by the chemical waste.
Pictograms
Container Type:
Polyethylene drums
Content:
Acids and bases
Container Type:
Metal drums
Content:
Flammables, solvents, paints
Container Type:
Fiber drums
Content:
Granular materials
Color of the label is ______ for background and black for letters (permanent marking).
Yellow
Minimum size of _________ for vessels, containers, and tanks, or readable from five (5)
meters afar.
10cm x 10cm
RA 6969, “The Toxic Substances and Hazardous and Nuclear Waste Control Act” which focuses on toxic and hazardous waste management.
Department of Environment and Natural Resources (DENR)
RA 9514, revised Fire Code of the Philippines.
Bureau of Fire Protection (BFP)
Have different memorandum circular (MCs) and executive order (EOs) implemented by Firearms and Explosive Office.
Philippines National Police (PNP)
RA 9165, “The Dangerous Drugs Act”
Philippine Drug Enforcement Agency (PDEA)
Foods, Drugs, Medical Devices and Cosmetics Act.
Food and Drug Administration (FDA)
Chemistry Profession Act
RA 10657
Refers to a single pile of a material. Not in the form of separate permanently
identifiable units.
Bulk material
Comprised of identifiable units, which may be assigned numbers.
Packaged material
Bulk materials that are partially packaged into smaller units, such as bags or drums.
Segments
A quantity of the material transferred on one occasion and covered by a single
set of shipping documents.
Consignment
Refers to quantity of material which is assumed to represent a single population for sampling purposes.
Lot
Refers to quantity of material which is known or assumed to have been produced under
uniform conditions.
Batch
Are portions of the material obtained from the lot/batch by using a sampling device.
lncrements
Result of combined increments.
Primary or gross sample
Results from a number of primary samples combined and mixed.
Composite or aggregate
A portion of material delivered to the laboratory for analysis. Obtained from primary or composite sample by a series of division and reduction processes
Laboratory sample
Refers to a quantity of material that is actually submitted for analysis. Technically,
it is called as analytical portion.
Test portion
Samples with characteristics the same as that of parent material.
Representative Samples
Obtained by choosing certain portions of the material possessing the desired characteristics to be analyzed
Selective Samples
Obtained by using a random sampling plan that generates data for the purpose of statistical analyses
Random Samples
Two or more portions of the material collected at the same time.
Composite Samples
Performed when statistical evaluation is needed to be employed on the set of data.
Probability Sampling or Random Sampling
Any sample has an equal chance of selection.
Simple Random Sampling
The lot is subdivided/stratified where a simple random sample
is selected from each stratum.
Stratified Random Sampling
The first sample is selected randomly and then subsequent
samples are taken according to a previously arranged interval.
Systematic Random Sampling
Performed when a representative sample is not appropriate, hence, results in selective samples.
Non-probability Sampling
Knowledge about the material is required to select the desired specific samples.
Judgement Sampling
The materials are subdivided into groups where a sample is selected from each group.
Quota Sampling
Performed when selecting a sample depends on its availability and accessibility.
Convenience Sampling
Involves selection of a sample from material which does not consist of discrete, identifiable or constant units.
Bulk Sampling
Involves the use of a predetermined sampling plan to determine if the batch
of materials meets the defined criteria for acceptance.
Acceptance Sampling
