|
|
Nominal Value (g)
|
Tolerances (+/- mg)
|
Class F2
|
Class M1
|
Class M2
|
Class M3
|
UK Trade Use
|
| 20 000 |
300 |
1 000 |
3 000 |
10 000 |
3 200 |
| 10 000 |
150 |
500 |
1 500 |
5 000 |
1 600 |
| 5 000 |
75 |
250 |
750 |
2 500 |
800 |
| 2 000 |
30 |
100 |
300 |
1 000 |
400 |
| 1 000 |
15 |
50 |
150 |
500 |
200 |
| 500 |
7.5 |
25 |
75 |
250 |
100 |
| 200 |
3.0 |
10 |
30 |
100 |
50 |
| 100 |
1.5 |
5 |
15 |
50 |
30 |
| 50 |
1.0 |
3 |
10 |
30 |
30 |
| 20 |
0.8 |
2.5 |
8 |
25 |
20 |
| 10 |
0.6 |
2.0 |
6 |
20 |
20 |
| 5 |
0.5 |
1.5 |
5 |
15 |
10 |
| 2 |
0.4 |
1.2 |
4 |
12 |
5 |
| 1 |
0.3 |
1.0 |
3 |
10 |
5 |
| 0.5 |
0.25 |
0.80 |
2.5 |
X |
2.5 |
| 0.2 |
0.20 |
0.60 |
2 |
X |
2 |
| 0.1 |
0.15 |
0.50 |
1.5 |
X |
1.5 |
| 0.05 |
0.12 |
0.40 |
X |
X |
1.2 |
| 0.02 |
0.10 |
0.30 |
X |
X |
0.3 |
| 0.01 |
0.08 |
0.25 |
X |
X |
0.25 |
| 0.005 |
0.06 |
0.20 |
X |
X |
0.2 |
| 0.002 |
0.06 |
0.20 |
X |
X |
0.2 |
| 0.001 |
0.06 |
0.20 |
X |
X |
0.2 |
Note (1) The above table does not cover very high accuracy weights of class F1, E2 & E1.
Note (2) R111 2004 was published at the end of 2005, the table above has been modified with small increases in some tolerances, and the inclusion of weights upto 5 000 kg.
OIML R111 2004 is available from http://www.oiml.org/publications
Note (3) 'UK Trade Use' verification tolerances from EC Directive on Medium Accuracy Weights No.71/317/EEC and The Weights Regulations 1986 No.1683
Note (4) OIML class M3 weights are not suitable for Trade Use (Legal Metrology) as they are not recognised by the EC Directives on Weights
Return to Laboratory Home Page
London Boroughs of Brent and Harrow, Trading Standards Service,
Quality House, 249 Willesden Lane, London, NW2 5JH
Telephone: 020 8937 5555 (Answerphone Out of Normal Hours): 020 8937 5555
Fax: 020 8937 5544
Internet World Wide Web http://www.tradingstandards.gov.uk/brent&harrow/
Electronic Mail: trading.standards@brent.gov.uk
Copyright © Brent and Harrow Trading Standards Service 2007
