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Home  >  Balances & Scales > Calibration Masses

Calibration Masses

Calibration Masses

For precision weighing, select from either electronic or precision analytical balance masses. Electronic balance masses are cylindrical shaped for easy stacking on balance weighing pans. Precision analytical masses feature two-piece construction and consist of a special austenitic alloy for high precision and stability. Both groups of masses meet ASTM Class 1 or ASTM Class 4 standards, and are available with either a *NVLAP Lab Code 105013-0 (National Voluntary Laboratory Accreditation Program) or traceable certificate. For commercial applications, choose an NIST Class F weight. Use the descriptions below to select the best calibration class for your application.

UltraClass—With weight tolerances 50% greater than ASTM E617 Class 1 tolerances, these weights combine high precision with the advantage of two-piece construction (1 g and larger), avoiding costly replacement issues associated with one-piece weights

ASTM Class 1—Appropriate for calibrating high-precision analytical balances with a readability as low as 0.1 mg to 0.01 mg

ASTM Class 4—For calibration of semi-analytical balances and for student use

NIST Class F—Primarily used to test commercial weighing devices by state and local weights and measures officials, device installers, and service technicians. Class F weights may be used to test most accuracy Class III scales, all scales of Class III L or IIII, and scales not marked with a class designation

ASTM Class 6—Meet the specifications of OIML R 111 Class M2
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EW-01025-63 Representative image shown, actual product may differ

Case F/01025-62

Product Type Calibration Mass Sets,Brand Troemner,Model TW-100-20KG
EW-01025-63
Call 1-888-358-4705 for availability.
$306.00 USD/EACH

Qty:
EW-11954-51 Group image shown

ASTM Class 1 Mass with Weight Calibration Certificate, 4000 g

Product Type Calibration Mass,Class Class 1,Mass g 4000
EW-11954-51
Call 1-888-358-4705 for availability.
$491.00 USD/EACH

Qty:
Representative photo only Class 1 calibration mass with certificate of calibration 3000 g

Class 1 calibration mass with certificate of calibration, 3000 g

Product Type Calibration Mass,Class Class 1,Mass g 3000
EW-10150-13
Usually ships in 12 days.
$465.00 USD/EACH

Qty:
Representative photo only Rice Lake Class 1 Calibration Weight Set 50 g 1 mg

Rice Lake Class 1 Calibration Weight Set 50 g - 1 mg

Product Type Calibration Mass,Class Class 1,Model 11903CR
EW-10151-14
Usually ships in 11 days.
$1,660.00 USD/EACH

Qty:
Representative photo only 50g 2g Troemner Cal pak Class 1 With Certificate

50g-2g Troemner Cal-pak Class 1 With Certificate

Product Type Calibration Mass,Class Class 1,Brand Troemner
EW-11967-05
Call 1-888-358-4705 for availability.
$307.00 USD/EACH

Qty:
Representative photo only Calibration Service For mass 1 Kg To 25 Kg Astm 4 7 NIST F Oiml M1 M2 M3

Calibration Service For mass >1 Kg To 25 Kg; Astm 4-7; NIST F; Oiml M1, M2, M3

Product Type Calibration Mass Sets
EW-17108-34
Usually ships in 11 days.
$77.00 USD/EACH

Qty:
Representative photo only Recalibration report for calibration masses 1 25kg

Recalibration report for calibration masses 1-25kg

Product Type Calibration Mass Sets
EW-17108-02
Usually ships in 8 days.
$126.00 USD/EACH

Qty:
Representative photo only Cast Iron Grip Handle w Traceable certificate

Cast Iron Grip Handle w/ Traceable certificate

Product Type Calibration Mass,Class Class F,Mass kg 20
EW-11966-55
Usually ships in 13 days.
$192.00 USD/EACH

Qty:
EW-10149-29 CLASS F CALIBRATION MASS, 50KG CAST IRON PAINTED

Class F Calibration mass, 50kg Cast Iron Painted, Density 7.2 (traceable)

Product Type Calibration Mass,Class Class F,Mass kg 50
EW-10149-29
Usually ships in 7 days.
$675.00 USD/EACH

Qty:
EW-11954-27 Group image shown

ASTM Class 1 Mass with Weight Calibration Certificate, 200 g

Product Type Calibration Mass,Class Class 1,Mass g 200
EW-11954-27
Call 1-888-358-4705 for availability.
$194.00 USD/EACH

Qty:
Representative photo only Precision UltraClass mass set 200 g 2 to 1 mg

Precision UltraClass™ mass set, 200 g (2) to 1 mg

Product Type Calibration Mass,Class UltraClass,Mass g 200
EW-01026-61
Call 1-888-358-4705 for availability.
$1,350.00 USD/EACH

Qty:
Representative photo only Calibration Service For mass 2 To 50lbs Astm 0 3 Oiml E2 F1 F2

Calibration Service For mass >2 To 50lbs; Astm 0-3; Oiml E2, F1, F2

Product Type Calibration Mass Sets
EW-17108-10
Usually ships in 8 days.
$126.00 USD/EACH

Qty:
Representative photo only Calibration Service For mass Set With Maximum Value Between 300 To 500 G Astm 1 3

Calibration Service For mass Set With Maximum Value Between 300 To 500 G; Astm 1-3

Product Type Calibration Mass Sets
EW-17109-32
Usually ships in 8 days.
$437.00 USD/EACH

Qty:
Representative photo only Class F Calibration Mass 50 lb

Class F Calibration Mass, 50 lb

Product Type Calibration Mass,Class Class F,Mass lbs 50
EW-01025-66
In stock.
$152.00 USD/EACH

Qty:
Representative photo only Precision ASTM Class 1 calibration mass sets 100 g to 1 g

Precision ASTM Class 1 calibration mass sets, 100 g to 1 g

Product Type Calibration Mass,Class Class 4,Mass g 100
EW-01026-75
Call 1-888-358-4705 for availability.
$604.00 USD/EACH

Qty:
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