 | |  | |  |
 | |  | |  | |  | |  |
| All Rights Reserved © Copyright AfriCommex 2008 |
| Africa Commodity Exchange |
| AfriCommex MAIZE GRADING STANDARD QUALITY STANDARD: The maize shall be of the current season’s crop, have a good natural colour, be free from objectionable odour, contain no live insects and shall comply with the following requirements: |
|
DEFINITIONS:
Maize:
Refers to the seeds of Zea mays L.
Moisture Content:
The moisture content, expressed on a wet weight basis, shall be
determined by an approved moisture meter calibrated according to
a method prescribed by the Bureau of Standards
Extraneous Matter:
a). Anything other than maize grain which will pass through a 4.5
mm sieve.
b). Any animal or mineral or plant matter or grain other than
maize, which will not pass through a 4.5 mm sieve.
Damaged Grain:
Means grain and pieces of grain which will pass through a 4.5 mm
sieve.
Broken Grain:
Means maize, which has been broken, cracked or chipped to
expose the white interior of the grain. It does not pass through the
4.5 mm sieve and has no other defects.
Other Coloured Grain:
Means grain that is coloured or partly coloured maize present in
white maize or maize of any colour other than yellow present in
yellow maize.
Defective Grain:
Means any grain which falls within one or other of the following
categories
a) insect/pest damaged grain
b) fungal damaged grain
c) diseased grain
d) immature or shrivelled grain
e) germinated grain
f) discoloured grain
Insect/Pest Damaged Grain:
Means maize which has been damaged by any insect or animal
pest.
Fungal Damaged Grain:
Means maize with visible mycelial/mould growth on its surface.
Diseased Grain:
Means maize which is obviously rotted by fungi, bacteria or other
organisms of decay.
Immature or Shrivelled Grain:
Means immature maize which has indications of lack of maturity or
full development and which may be thin and papery (almost see
through) in appearance. Means maize which is shrivelled over
most of its surface.
Germinated Grain:
Means maize grain which shows any signs of germination.
Discoloured Grain:
Means grain discoloured by heating, fermentation or weathering.
Sieve:
A 4.5 mm grading sieve is a device, the bottom (baseplate) of
which is perforated with round-holes 4.5 mm in diameter, and
used for the separation of fine extraneous material from grain.
|
DEFINITIONS:
Soyabeans:
Means the seeds of Glycine max.
Moisture Content:
The moisture content expressed on a wet weight basis shall be
determined by an approved moisture meter calibrated according to
a method prescribed by the Zambia Bureau of Standards
Extraneous Matter:
a). All matter, including soyabeans and pieces of soyabeans, which
will pass through a 3.35 mm sieve.
b). All matter, other than soyabeans and pieces of soyabeans,
which will not pass through a 3.35 mm sieve.
Defective Soyabeans:
Means soyabeans or pieces of soyabeans retained on a 3.5 mm
sieve after sieving, which fall within one or other of the following
categories:
a). Discoloured Soyabeans:
Means soyabeans discoloured by heat due to fermentation.
b). Germinated Soyabeans:
Means sprouted soyabeans or soyabeans in which the process of
germination is visible within the embryo.
c). Weather-damaged Soyabeans:
Means soyabeans and pieces of soyabeans in which the seed coats
are discoloured by weather damage on one side or both sides.
d). Infected Soyabeans:
Means soyabeans and pieces of soyabeans which show any sign of
disease, fungus or virus infection.
e). Immature Soyabeans:
Means soyabeans and pieces of soyabeans which are markedly
shrivelled over more than half their area or which, in cross section,
show an intense green colour.
f). Pest-damaged Soyabeans:
Means soyabeans and pieces of soyabeans which are visibly
damaged by insects, birds or rodents.
Split Soyabeans:
Means pieces of soyabeans remaining on a 3.35 mm sieve after
sieving, which are not defective, and include mechanically
damaged soyabeans that are likely to split in handling.
Sieve:
A 3.35 mm grading sieve is a device, the bottom (baseplate) of
which is perforated with round-holes 3.35 mm in diameter, and
used for the separation of fine extraneous material from soyabeans.
Soyabeans:
Means the seeds of Glycine max.
Moisture Content:
The moisture content expressed on a wet weight basis shall be
determined by an approved moisture meter calibrated according to
a method prescribed by the Zambia Bureau of Standards
Extraneous Matter:
a). All matter, including soyabeans and pieces of soyabeans, which
will pass through a 3.35 mm sieve.
b). All matter, other than soyabeans and pieces of soyabeans,
which will not pass through a 3.35 mm sieve.
Defective Soyabeans:
Means soyabeans or pieces of soyabeans retained on a 3.5 mm
sieve after sieving, which fall within one or other of the following
categories:
a). Discoloured Soyabeans:
Means soyabeans discoloured by heat due to fermentation.
b). Germinated Soyabeans:
Means sprouted soyabeans or soyabeans in which the process of
germination is visible within the embryo.
c). Weather-damaged Soyabeans:
Means soyabeans and pieces of soyabeans in which the seed coats
are discoloured by weather damage on one side or both sides.
d). Infected Soyabeans:
Means soyabeans and pieces of soyabeans which show any sign of
disease, fungus or virus infection.
e). Immature Soyabeans:
Means soyabeans and pieces of soyabeans which are markedly
shrivelled over more than half their area or which, in cross section,
show an intense green colour.
f). Pest-damaged Soyabeans:
Means soyabeans and pieces of soyabeans which are visibly
damaged by insects, birds or rodents.
Split Soyabeans:
Means pieces of soyabeans remaining on a 3.35 mm sieve after
sieving, which are not defective, and include mechanically
damaged soyabeans that are likely to split in handling.
Sieve:
A 3.35 mm grading sieve is a device, the bottom (baseplate) of
which is perforated with round-holes 3.35 mm in diameter, and
used for the separation of fine extraneous material from soyabeans.
| AfriCommex SOYA GRADING STANDARD QUALITY STANDARD: The soyabeans shall be of the current season’s crop, have a good natural colour, be free from objectionable odour, contain no live insects and shall comply with the following requirements: |