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regulation 9(3)
The instrument shall have a specified accuracy class X(x) for which the maximum permissible deviation of each fill from the average shall be equal to the limits specified in Table 1, multiplied by the class designation factor (x).
(x) shall be 1 x 10k, 2 x 10k, 5 x 10k, k being a positive or negative whole number or zero.
Value of the mass of the fills M(g) | Maximum permissible deviation of each fill from the average for class X(1) | |||||
---|---|---|---|---|---|---|
Initial verification | In-service | |||||
For in-service testing, when the reference particle mass exceeds 0.1 of the maximum permissible in-service deviation, the values derived from Table 1 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%.
| ||||||
M ≤ 50 | 6.3% | 9% | ||||
50 < M ≤ 100 | 3.15g | 4.5g | ||||
100 < M ≤ 200 | 3.15% | 4.5% | ||||
200 < M ≤ 300 | 6.3g | 9g | ||||
300 < M ≤ 500 | 2.1% | 3% | ||||
500 < M ≤ 1000 | 10.5g | 15g | ||||
1000 < M ≤ 10000 | 1.05% | 1.5% | ||||
10000 < M ≤ 15000 | 105g | 150g | ||||
15000 < M | 0.7% | 1% |
For instruments where it is possible to preset a fill weight the maximum difference between the preset value and the average mass of the fills shall not exceed 0.25 of the maximum permissible deviation of each fill from the average, as specified for in-service verification in 2.2.2. This limit will apply for initial verification and for in-service testing.
Clause 6.3 of Part 1 of OIML R 61
(Number of fills required to find the average value)
The number of individual test fills, required to find the average value, depends upon the preset value (m) as specified in Table 2.
m ≤ 10 kg | 60 fills |
10 kg < m ≤ 25 kg | 32 fills |
25 kg < m ≤ 100 kg | 20 fills |
100 kg < m | 10 fills |
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