Metanorma: Aequitate Verum

Specifications

General, organoleptic and health characteristics

Kernels of rice, whether parboiled, husked or milled, and whether whole or broken, shall be sound, clean and free from foreign odours or odour which indicates deterioration.

The levels of additives and pesticide residues and other contaminants shall not exceed the maximum limits permitted in the country of destination.

The presence of living insects which are visible to the naked eye is not permitted. This should be determined before separating the bulk sample into test samples.

Physical and chemical characteristics

The mass fraction of moisture, determined in accordance with [ISO712], using an oven complying with the requirements of [IEC61010-2], shall not be greater than 15 %.[1]

The mass fraction of extraneous matter and defective kernels in husked and milled rice, whether or not parboiled, shall not be greater than the values specified in table1.

Note
Lower mass fractions of moisture are sometimes needed for certain destinations depending on the climate, duration of transport and storage. For further details, see [ISO 6322-1], [ISO 6322-2] and [ISO 6322-3].

The defect tolerance for the categories considered shall not exceed the limits given in table1.

Note
This table is based on Table 1.
Note
Some commercial contracts require information in addition to that provided in this table.
Note
Only full red husked (cargo) rice is considered in this table.
Table 1. Maximum permissible mass fraction of defects
Defect Maximum permissible mass fraction of defects in husked rice
\$w_max\$
%

in husked rice

in milled rice (non-glutinous)

in husked parboiled rice

in milled parboiled rice

Extraneous matter: organic

1,0

0,5

1,0

0,5

Extraneous matter: inorganic

0,5

0,5

0,5

0,5

Paddy

2,5

0,3

2,5

0,3

Husked rice, non-parboiled

Not applicable

1,0

1,0

1,0

Milled rice, non-parboiled

1,0

Not applicable

1,0

1,0

Husked rice, parboiled

1,0

1,0

Not applicable

1,0

Milled rice, parboiled

1,0

1,0

1,0

Not applicable

Chips

0,1

0,1

0,1

0,1

HDK

2,0 [2]

2,0

2,0 [2]

2,0

Damaged kernels

4,0

3,0

4,0

3,0

Immature and/or malformed kernels

8,0

2,0

8,0

2,0

Chalky kernels

5,0 [2]

5,0

Not applicable

Not applicable

Red kernels and red-streaked kernels

12,0

12,0

12,0 [2]

12,0

Partly gelatinized kernels

Not applicable

Not applicable

11,0 [2]

11,0

Pecks

Not applicable

Not applicable

4,0

2,0

Waxy rice

1,0 [2]

1,0

1,0 [2]

1,0

Live insects shall not be present. Dead insects shall be included in extraneous matter.

Bibliography

  • [ISO 6322-1], Storage of cereals and pulses — Part 1: General recommendations for the keeping of cereals

  • [ISO 6322-2], Storage of cereals and pulses — Part 2: Practical recommendations

  • [ISO 6322-3], Storage of cereals and pulses — Part 3: Control of attack by pests


1. Formerly denoted as 15 % (m/m).
2. The maximum permissible mass fraction of defects shall be determined with respect to the mass fraction obtained after milling.