1.2 General Classification
The electrical and electronic component industry is generally classified as standard
industrial classification with the code 36. The SIC is a Statistical Classification
Standard used for all US-based establishments of Federal Economic Statistics
which is under the Department of Commerce [4]. The wide range of electrical and
electronic components are broadly sourced from the product areas which include
carbon and graphite, electric and electronic components, electron tubes, fluorescent
lamps, cathode and television tubes, capacities, incandescent lamps, insulators
(mica, plastic, and laminates), semiconductors, resistance heaters, switchgears and
fuses, and wet transformers.
To indicate main category and subcategory, the electrical and electronic components are assigned four digits under the SIC. This is summarized in Table 4.4, based
on the number of subcategories and discharges.
The invention of computer and its accessories has led to overlapping in the
classification of electrical and electronic components. The recent document
addressed the industry as computer and electronic component industry [5]. However,
the computer and electronic group is classified under the SIC with the code 357 and
with the following subcategories (Table 4.5).
2 Subcategory Classification
The electrical and electronic component industry would be discussed, for simplification purpose, under seven subcategories. They are dry products – carbon and
graphite products, electric materials, electric lamps, electric tubes, semiconductors,
and capacitors [6]. These subcategories shall be discussed under the subheadings:
description and production process, waste characterization, pollutant resolvability,
and treatment.
2.1 Dry Products Subcategory
This subcategory is named dry products because it includes electrical and electronic
components which are produced in plants which do not use manufacturing process
water. These products include switchgears and fuses, resistance, heaters, ferrite
electronic parts, motors and generators, fuel cells, alternators, insulated wire, and
cables (nonferrous). In actual fact, accessories employed in this subcategory are
products of metal finishing industries, and associated wastes are studied under the
metal finishing industries.
4 Electrical and Electronic Wastes Treatment
119
The electrical and electronic component industry is generally classified as standard
industrial classification with the code 36. The SIC is a Statistical Classification
Standard used for all US-based establishments of Federal Economic Statistics
which is under the Department of Commerce [4]. The wide range of electrical and
electronic components are broadly sourced from the product areas which include
carbon and graphite, electric and electronic components, electron tubes, fluorescent
lamps, cathode and television tubes, capacities, incandescent lamps, insulators
(mica, plastic, and laminates), semiconductors, resistance heaters, switchgears and
fuses, and wet transformers.
To indicate main category and subcategory, the electrical and electronic components are assigned four digits under the SIC. This is summarized in Table 4.4, based
on the number of subcategories and discharges.
The invention of computer and its accessories has led to overlapping in the
classification of electrical and electronic components. The recent document
addressed the industry as computer and electronic component industry [5]. However,
the computer and electronic group is classified under the SIC with the code 357 and
with the following subcategories (Table 4.5).
2 Subcategory Classification
The electrical and electronic component industry would be discussed, for simplification purpose, under seven subcategories. They are dry products – carbon and
graphite products, electric materials, electric lamps, electric tubes, semiconductors,
and capacitors [6]. These subcategories shall be discussed under the subheadings:
description and production process, waste characterization, pollutant resolvability,
and treatment.
2.1 Dry Products Subcategory
This subcategory is named dry products because it includes electrical and electronic
components which are produced in plants which do not use manufacturing process
water. These products include switchgears and fuses, resistance, heaters, ferrite
electronic parts, motors and generators, fuel cells, alternators, insulated wire, and
cables (nonferrous). In actual fact, accessories employed in this subcategory are
products of metal finishing industries, and associated wastes are studied under the
metal finishing industries.
4 Electrical and Electronic Wastes Treatment
119