Calibration Weights

OIML Precision Weights that conform to the standards of the Organisation Internationale de Metrologie Legale International Recommendation (OIML R 111).  They are manufactured from the finest stainless steels available including Alloy 8 Stainless Steel that has low magnetic permeability, uniform consistency and high resistance to corrosion. These weights  are available in Classes E1, E2, F1 and F2.

Weights below 10mg are constructed of aluminium

The weights are individually identified and supplied in a plastic box with either a pair of tweezers or cotton handling glove.

They are suitable for the calibration, adjustment, and checking of all types of balances and scales.

F2 Class OIML Stainless Steel Calibration Weights (Boxed)  

DenominationWeightUKAS CertDenominationWeightUKAS Cert
1mg7537-F2PNAF2-E5g7522-F2PNAF2-E
2mg7536-F2PNAF2-E10g7521-F2PNAF2-E
5mg7534-F2PNAF2-E20g7520-F2PNAF2-E
10mg  7533-F2PNAF2-E50g7518-F2PNAF2-E
20mg 7532-F2PNAF2-E100g7517-F2PNAF2-E
50mg7530-F2PNAF2-E200g7516-F2PNAF2-E
100mg 7529-F2PNAF2-E500g7514-F2PNAF2-E
200mg7528-F2PNAF2-E1kg7513-F2PNAF2-E
500mg7526-F2PNAF2-E2kg7512-F2PNAF2-E
1g7525-F2PNAF2-E5kg7510-F2PNAF2-E
2g7524-F2PNAF2-E10kg7509-F2PNAF2-E
20kg7508-F2PNAF2-E
UKAS certification optional.  View example certificate
F2 Weight Sets

F1 Class OIML Stainless Steel Calibration Weights (Boxed)

Purchase online
DenominationWeightUKAS CertDenominationWeightUKAS Cert
1mg7537-F1PNAF1-E10g7521-F1PNAF1-E
2mg7536-F1PNAF1-E20g7520-F1PNAF1-E
5mg7534-F1PNAF1-E50g7518-F1PNAF1-E
10mg  7533-F1PNAF1-E100g7517-F1PNAF1-E
20mg 7532-F1PNAF1-E200g7516-F1PNAF1-E
50mg7530-F1PNAF1-E500g7514-F1PNAF1-E
100mg 7529-F1PNAF1-E1kg7513-F1PNAF1-E
200mg7528-F1PNAF1-E2kg7512-F1PNAF1-E
500mg7526-F1PNAF1-E5KG
7510-F1PNAF1-E
1g7525-F1PNAF1-E10kg7509-F1PNAF1-E
2g7524-F1PNAF1-E20kg7508-F1PNAF1-E
5g7522-F1PNAF1-E
UKAS certification optional. View example certificate
F1 Weight Sets

E2 Class OIML Stainless Steel Calibration Weights (Boxed)

Purchase online
DenominationWeightUKAS CertDenominationWeightUKAS Cert
1mg7537-E2PNAE2-E10g7521-E2PNAE2-E
2mg7536-E2PNAE2-E20g7520-E2PNAE2-E
5mg7534-E2PNAE2-E50g7518-E2PNAE2-E
10mg  7533-E2PNAE2-E100g7517-E2PNAE2-E
20mg 7532-E2PNAE2-E200g7516-E2PNAE2-E
50mg7530-E2PNAE2-E500g7514-E2PNAE2-1
100mg 7529-E2PNAE2-E1kg7513-E2PNAE2-1
200mg7528-E2PNAE2-E2kg7512-E2PNAE2-11
500mg7526-E2PNAE2-E5kg7510-E2PNAE2-11
1g7525-E2PNAE2-E10kg7509-E2PNAE2-11
2g7524-E2PNAE2-E20kg7510-E2PNAE2-111
5g7522-E2PNAE2-E
UKAS certification optional.  View example certificate
E2 Weight Sets

E1 Class OIML Stainless Steel Calibration Weights (Boxed)

DenominationWeightUKAS CertDenominationWeightUKAS Cert
1mg7537-E1PNAE110g7521-E1NAE1-1
2mg7536-E1PNAE120g7520-E1NAE1-1
5mg7534-E1PNAE150g7518-E1NAE1-1
10mg  7533-E1PNAE1100g7517-E1NAE1-1
20mg 7532-E1PNAE1200g7516-E1NAE1-1
50mg7530-E1PNAE1500g7514-E1NAE1-1
100mg 7529-E1PNAE11kg7513-E1NAE1-1
200mg7528-E1PNAE12kg7512-E1NAE1-111
500mg7526-E1PNAE15kg
7510-E1NAE1-111
1g7525-E1NAE1-110kg7509-E1NAE1-111
2g7524-E1NAE1-120kg7508-E1NAE1-111
5g7522-E1NAE1-1
UKAS certification optional.  View example certificate
E1 Weight Sets