ENAC calibration certificates

Do you want to know more about ENAC calibration certificates?

When calibrating weighing equipment, the weighing is verifi ed, and possible deviations are documented.
When calibrating weights, updated procedures are used; and a certifi cate is issued indicating the weight class according to the criteria established in OIML Directive R111-2004, of international validity, which classifi es the test weights in hierarchical form, in various kinds of precision.

Fine accuracy

F1 - This accuracy class is used for calibration of F2 class weights and for calibration of weighing instruments of accuracy class I and II. 
F2 - This accuracy class is used for calibration of M1 class weights and for calibration of weighing instruments of accuracy class II involved in major business transactions (eg, precious metals and stones).

Medium accuracy

M1 - This accuracy class is used for calibration of M2 class weights and for calibration of weighing instruments of accuracy class III.
M2 - This accuracy class is used for calibration of M3 class weights and for calibration of weighing instruments of accuracy class III used in general business transactions.

Test weights

Capacity / Class

1 mg / F1, F2, M1, M2
2 mg / F1, F2, M1, M2
5 mg / F1, F2, M1, M2
10 mg / F1, F2, M1, M2
20 mg / F1, F2, M1, M2
50 mg / F1, F2, M1, M2
100 mg / F1, F2, M1, M2
200 mg / F1, F2, M1, M2
500 mg / F1, F2, M1, M2
1 g / F1, F2, M1, M2
2 g / F1, F2, M1, M2
5 g / F1, F2, M1, M2
10 g / F1, F2, M1, M2
20 g / F1, F2, M1, M2
50 g / F1, F2, M1, M2
100 g / F1, F2, M1, M2
200 g / F1, F2, M1, M2
500 g / F2, M1, M2
1 kg / F2, M1, M2
2 kg / F2, M1, M2
5 kg / F2, M1, M2
10 kg / F2, M1, M2
20 kg / F2, M1, M2
50 kg / M1, M2
100 kg / M2
200 kg / M2
500 kg / M2
1,000 kg / M2

Sets of weights

Capacity / Class

1 mg - 500 mg / F1, M1
1 g - 100 g / F1
1 g - 100 g / M1
1 g - 200 g / F1
1 g - 200 g / M1
1 g - 500 g / F2
1 g - 500 g / M1
1 g - 1 kg / F2
1 g - 1 kg / M1
1 g - 2 kg / F2
1 g - 2 kg / M1
1 g - 5 kg / F2
1 g - 5 kg / M1
1 g - 10 kg / F2
1 g - 10 kg / M1

Industrial and bench scales

Capacity / Class*

Up to 5 kg / III
From 5 kg to 60 kg / III
From 61 kg to 150 kg / III
From 151 kg to 300 kg / III
From 301 kg to 600 kg / III
From 601 kg to 1,500 kg / III
From 1,501 kg to 3,000 kg / III
From 3,001 kg to 6,000 kg / III
From 6,000 kg / III

* For other classes, consult.

Weighing hooks

Capacity / Class*

Up to 60 kg / III
From 61 kg to 150 kg / III
From 151 kg to 300 kg / III
From 301 kg to 600 kg / III
From 601 kg to 1,500 kg / III
From 1,501 kg to 3,000 kg / III
From 3,001 kg to 6,000 kg / III
From 6,000 kg / III

* For other classes, consult.

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