V&V VentMet laboratory Ltd. as the A group inspection institution works according to LVS EN ISO/IEC 17020 standard in the mandatory scope, as well as in the voluntary scope.
In the mandatory scope according to regulations of the Cabinet of Ministers of the Republic of Latvia laboratory performs:
In the voluntary scope laboratory offers following service:
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| Field of inspection | Type of inspection | Normative technical documentation |
|---|---|---|
| Ultrasound test equipment | Characterization and verification of an object after it is put into operation | LVS EN ISO 22232-1:2020 |
Subsequent verification
Subsequent verification is the periodic verification of measuring instruments after the previous verification, as well as the verification of measuring instruments after the repair. The subsequent verification is performed on the national market in accordance with the Regulations No.981 of the Cabinet of Ministers of the Republic of Latvia if a measuring instrument type is approved or this measuring instrument was produced by 28 June 2005, and the national initial verification or conformity assessment procedures are applied.
The Regulations No.40 of the Cabinet of Ministers of the Republic of Latvia state the list of measuring instruments subject to the state metrological control and their verification periodicity. V&V VentMet laboratory Ltd. performs subsequent verification of the following measuring instruments in the mandatory scope.
The Regulations No.40 of the Cabinet of Ministers of the Republic of Latvia state the list of measuring instruments subject to the state metrological control and their verification periodicity. V&V VentMet laboratory Ltd. performs subsequent verification of the following measuring instruments in the mandatory scope.
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| Measuring instrument | Measuring range | Normative technical documentation |
|---|---|---|
| Weights Accuracy classes M1; M1-2; M2; M2-3; M3 |
1 mg ÷ 500 kg | OIML R 111-1 |
| Non-automatic weighing instruments Accuracy classes I, II, III and IIII |
up to 60 000 kg | LVS EN 45501:2015 |
| Automatic catchweighers Accuracy classes XI, XII, XIII, XIIII (category X) and Y(I), Y(II), Y(a), Y(b) (category Y) |
up to 60 000 kg | OIML R 51-1 |
| Automatic gravimetric filling instruments Accuracy class X(x) and Ref(x) |
up to 60 000 kg | OIML R 61-1 |
| Discontinuous totalisers (totalising hopper weighers) Accuracy classes 0.2; 0.5; 1; 2 |
up to 60 000 kg | OIML R 107-1 |
| Continuous totalisers Accuracy classes 0.5; 1; 2 |
up to 60 000 kg | OIML R 50-1 |
| Pressure gauges (technical, oxygen, electrocontact manometers, vacuum gauges, pressure-vacuum gauges) Accuracy classes 0.25; 0.6; 1; 1.6; 2.5; 4 |
-0.08 ÷ 60 Mpa | LVS EN 837-1:2002+AC, LVS EN 837-3:2002 |
| Water meters DN (15 ÷ 3000) |
0.01 ÷ 30600 m3/h | LVS EN ISO 4064-1:2017, LVS EN ISO 4064-2:2017, LVS EN ISO 4064-5:2017 |
| Heat meters DN (15 ÷ 3000) |
0.01 ÷ 30600 m3/h | LVS EN 1434-1+A1:2019, LVS EN 1434-2+A1:2019, LVS EN 1434-5+A1:2019, LVS EN 1434-6+A1:2019 |
| Dipsticks for gauging the liquid level in tanks Accuracy class II |
0 ÷ 5 m | OIML R 35-1 |
| Measuring tapes for gauging the liquid level in tanks Accuracy class II; III |
0 ÷ 50 m | OIML R 35-1 |
| Metres and rulers Accuracy classes I; II; III |
0 ÷ 5 m | OIML R 35-1 |
| Measuring tapes Accuracy classes I; II; III |
0 ÷ 50 m | OIML R 35-1 |
| Gas meters (diaphragm) G1.6 ÷ G25 Gas meters (rotary displacement and turbine) G16 ÷ G4000 Gas volume conversion devices Ultrasonic gas meters |
0.016 ÷ 40 m3/h 0.5 ÷ 6500 m3/h 0.5 ÷ 6500 m3/h 0.016 ÷ 32 000 m3/h |
LVS EN 1359:2017, LVS EN 12261:2018, LVS EN 12405-1:2019, LVS EN 12480:2018, LVS EN 14236:2019, OIML R 137-1 & 2 |
| Sphygmomanometers Accuracy ± 3 mmHg |
0 ÷ 300 mmHg | LVS EN ISO 81060-1:2012 |
| Evidential breath analyzers Accuracy ± 0.020 mg/l, for β < 0.400 mg/l ± 5% of β, for β ≥ 0.400 mg/l to ≤ 2.000 mg/l (β/2)-0.9 mg/l, for β > 2.000 mg/l, β – reference value of the mass concentration of alcohol |
0.00 ÷ 4.99 mg/l BrAC | OIML R 126 |
| Measuring systems for liquids other than water Accuracy classes 0.3; 0.5; 1.0; 1.5; 2.5 |
2 ÷ 5000 l/min | OIML R 117-1 |
National initial verification
Initial verification is a verification of a new, previously unverified measuring instrument in accordance with the approved type or metrological requirements prior to its placement on the market or putting into service.
The initial verification is performed in accordance with the Regulations No.624 of the Cabinet of Ministers of the Republic of Latvia for measuring instruments undergone national and European Community (EC) type approval. V&V VentMet laboratory Ltd. performs the national initial verification of the following measuring instruments with the obtained type approval in Latvia.
The initial verification is performed in accordance with the Regulations No.624 of the Cabinet of Ministers of the Republic of Latvia for measuring instruments undergone national and European Community (EC) type approval. V&V VentMet laboratory Ltd. performs the national initial verification of the following measuring instruments with the obtained type approval in Latvia.
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| Measuring instrument | Measuring range | Normative technical documentation |
|---|---|---|
| Pressure gauges (technical, oxygen, electrocontact manometers, vacuum gauges, pressure-vacuum gauges) Accuracy classes 0.25; 0.6; 1; 1.6; 2.5; 4 |
-0.08 ÷ 60 Mpa | LVS EN 837-1:2002+AC, LVS EN 837-3:2002 |
| Evidential breath analyzers Accuracy ± 0.020 mg/l, for β < 0.400 mg/l ± 5% of β, for β ≥ 0.400 mg/l to ≤ 2.000 mg/l (β/2)-0.9 mg/l, for β > 2.000 mg/l, β – reference value of the mass concentration of alcohol |
0.00 ÷ 4.99 mg/l BrAC | OIML R 126 |