The Measuring Instruments (Automatic Gravimetric Filling Instruments) Regulations 2006

Regulations 2(1) and 14(1)

SCHEDULE 5 REQUIREMENTS FOR USE FOR TRADE

PART 1 ACCURACY CLASSES

Table 1

Accuracy classes for automatic gravimetric filling instruments for use for trade

Description of use of filling instrument	Maximum capacity of filling instrument	Accuracy class
(1)	(2)	(3)
For the purpose of this Table, “waste” shall be construed in accordance with section 75 of the Environmental Protection Act 1990(1), but “waste” shall include any waste disposed of for reprocessing or recycling purposes and shall not include any radioactive waste as defined in section 2 of the Radioactive Substances Act 1993(2).
For use for weighing potato crisps and similar products commonly known as “snack foods”	Any capacity	X2
For use for weighing solid fuel	110 kg or less	X(1)
For use for weighing vegetable produce	55 kg or less	X(1)
For weighing waste	Any capacity	X(1)
For use for weighing materials not described in any of the above	Less than 5 kg 5 kg or more	X(1) X(0.5)

PART 2 MAXIMUM PERMISSIBLE ERRORS

Maximum permissible error value for instruments in use for trade

1.—(1) The automatic gravimetric filling instrument shall have a specified accuracy class X(x) for which the maximum permissible error value of each fill from the average shall be equal to the limits specified in Table 2, multiplied by the class designation factor (x).

(2) (x) shall be 1 x 10^k, 2 x 10^k, 5 x 10^k , k being a positive or negative whole number or zero.

Table 2

Value of the mass of the fills (m) in grams	Maximum permissible deviation of each fill from the average for class X(1)
	In use
m< = 50	9%
50 < m < = 100	4.5grams
100 < m < = 200	4.5%
200 < m < = 300	9 grams
300 < m < = 500	3%
500 < m < = 1000	15 grams
1000 < m < = 10 000	1.5%
10 000 < m < = 15 000	150 grams
15 000 < m	1%

(3) For in-service testing, when the reference particle mass exceeds 0.1 of the maximum permissible in-service deviation, the values derived from Table 2 shall be increased by 1.5 times the value of the reference particle mass. However, the maximum value of the maximum permissible deviation shall not exceed (x) x 9%.

Note: Particle mass correction is not applicable to limits which are derived from Table 2, e.g. influence quality tests, zero setting.

• Note: Table 2 is illustrative of the maximum permissible deviation where the class designation factor is 1.

(1)

1990 c. 43.

(2)

1993 c. 12.