Reference Weights and Mass Standards

ASTM Reference Calibration Weight Sets

Reference Calibration Weights and Mass Standards Adjusted to Troemner UltraClass Tolerances
Troemner UltraClass Reference Calibration Weights and Mass Standards offer the tightest tolerances, lowest uncertainties, and all surfaces are polished to a perfect finish to meet or exceed ANSI/ASTM E617 tolerance and design restrictions. UltraClass calibration weights are manufactured from high grade stainless steels including Troemner Alloy 8 which possesses closely controlled density, low magnetic susceptibility, and corrosion resistance.
ASTM Reference Calibration Weight Sets Features
Troemner UltraClass offers high accuracy with tight tolerances and guaranteed uncertainties as low as 1/5 of the tolerance. Weight surfaces meet or exceed ASTM and have a highly polished finish.
Available in high grade stainless steels including Troemner Alloy 8 which possesses closely controlled density, extremely low magnetic properties, good stability, and resistance to corrosion.
Available with certificate options traceable to NIST including ISO/IEC 17025 Accredited Certificate or Traceable Certificate to aid in meeting SOP and regulatory requirements.
ASTM Reference Calibration Weight Sets Models
Certificate


Show More
ASTM Class
Show More
Weight Set Range










































Show More
Set Capacity

















Show More
Set Total Pieces


























Show More
Protective Case
Show More
Certificate
No Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
500 mg - 1 mg
Certificate
ISO/IEC 17025 Accredited Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
500 mg - 1 mg
Certificate
Traceable Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
500 mg - 1 mg
Certificate
ISO/IEC 17025 Accredited Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
2 g - 1 mg
Certificate
ISO/IEC 17025 Accredited Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
5 g - 1 mg
Certificate
No Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
20 g - 1 mg
Certificate
ISO/IEC 17025 Accredited Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
20 g - 1 mg
Certificate
Traceable Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
20 g - 1 mg
Certificate
No Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
50 g - 1 mg
Certificate
ISO/IEC 17025 Accredited Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
50 g - 1 mg
Certificate
Traceable Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
50 g - 1 mg
Certificate
No Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
100 g - 1 mg
Certificate
ISO/IEC 17025 Accredited Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
100 g - 1 mg
Certificate
Traceable Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
100 g - 1 mg
Certificate
No Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
200 g - 1 mg
Certificate
ISO/IEC 17025 Accredited Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
200 g - 1 mg
Certificate
Traceable Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
200 g - 1 mg
Certificate
No Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
(2) 200 g - 1 mg
Certificate
ISO/IEC 17025 Accredited Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
(2) 200 g - 1 mg
Certificate
Traceable Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
(2) 200 g - 1 mg
Certificate
No Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
500 g - 1 mg
Certificate
ISO/IEC 17025 Accredited Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
500 g - 1 mg
Certificate
Traceable Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
500 g - 1 mg
Certificate
No Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
1 kg - 1 mg
Certificate
ISO/IEC 17025 Accredited Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
1 kg - 1 mg
Certificate
Traceable Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
1 kg - 1 mg
Certificate
No Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
2 kg - 1 mg
Certificate
ISO/IEC 17025 Accredited Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
2 kg - 1 mg
Certificate
Traceable Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
2 kg - 1 mg
Certificate
No Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
(2) 2 kg - 1 mg
Certificate
ISO/IEC 17025 Accredited Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
(2) 2 kg - 1 mg
Certificate
Traceable Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
(2) 2 kg - 1 mg
Certificate
No Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
5 kg - 1 mg
Certificate
ISO/IEC 17025 Accredited Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
5 kg - 1 mg
Certificate
Traceable Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
5 kg - 1 mg
Certificate
No Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
10 kg - 1 mg
Certificate
ISO/IEC 17025 Accredited Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
10 kg - 1 mg
Certificate
Traceable Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
10 kg - 1 mg
Certificate
No Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
20 kg - 1 mg
Certificate
ISO/IEC 17025 Accredited Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
20 kg - 1 mg
Certificate
Traceable Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
20 kg - 1 mg
Certificate
No Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
25 kg - 1 mg
Certificate
ISO/IEC 17025 Accredited Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
25 kg - 1 mg
Certificate
Traceable Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
25 kg - 1 mg
Certificate
No Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
30 kg - 1 mg
Certificate
ISO/IEC 17025 Accredited Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
30 kg - 1 mg
Certificate
Traceable Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
30 kg - 1 mg
Certificate
No Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
50 kg - 1 mg
Certificate
ISO/IEC 17025 Accredited Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
50 kg - 1 mg
Certificate
Traceable Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
50 kg - 1 mg
Certificate
No Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
20 g - 5 mg
Certificate
ISO/IEC 17025 Accredited Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
20 g - 5 mg
Certificate
Traceable Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
20 g - 5 mg
Certificate
No Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
50 g - 5 mg
Certificate
ISO/IEC 17025 Accredited Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
50 g - 5 mg
Certificate
Traceable Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
50 g - 5 mg
Certificate
No Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
100 g - 5 mg
Certificate
ISO/IEC 17025 Accredited Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
100 g - 5 mg
Certificate
Traceable Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
100 g - 5 mg
Certificate
No Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
20 g - 10 mg
Certificate
ISO/IEC 17025 Accredited Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
20 g - 10 mg
Certificate
Traceable Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
20 g - 10 mg
Certificate
No Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
50 g - 10 mg
Certificate
ISO/IEC 17025 Accredited Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
50 g - 10 mg
Certificate
Traceable Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
50 g - 10 mg
Certificate
No Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
100 g - 10 mg
Certificate
ISO/IEC 17025 Accredited Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
100 g - 10 mg
Certificate
Traceable Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
100 g - 10 mg
Certificate
No Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
500 mg - 10 mg
Certificate
ISO/IEC 17025 Accredited Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
500 mg - 10 mg
Certificate
Traceable Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
500 mg - 10 mg
Certificate
No Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
20 g - 100 mg
Certificate
ISO/IEC 17025 Accredited Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
20 g - 100 mg
Certificate
Traceable Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
20 g - 100 mg
Certificate
No Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
50 g - 100 mg
Certificate
ISO/IEC 17025 Accredited Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
50 g - 100 mg
Certificate
Traceable Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
50 g - 100 mg
Certificate
No Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
100 g - 100 mg
Certificate
ISO/IEC 17025 Accredited Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
100 g - 100 mg
Certificate
Traceable Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
100 g - 100 mg
Certificate
No Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
20 g - 1 g
Certificate
ISO/IEC 17025 Accredited Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
20 g - 1 g
Certificate
Traceable Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
20 g - 1 g
Certificate
No Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
50 g - 1 g
Certificate
ISO/IEC 17025 Accredited Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
50 g - 1 g
Certificate
Traceable Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
50 g - 1 g
Certificate
No Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
100 g - 1 g
Certificate
ISO/IEC 17025 Accredited Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
100 g - 1 g
Certificate
Traceable Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
100 g - 1 g
Certificate
No Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
200 g - 1 g
Certificate
ISO/IEC 17025 Accredited Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
200 g - 1 g
Certificate
Traceable Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
200 g - 1 g
Certificate
No Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
(2) 200 g - 1 g
Certificate
ISO/IEC 17025 Accredited Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
(2) 200 g - 1 g
Certificate
Traceable Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
(2) 200 g - 1 g
Certificate
No Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
500 g - 1 g
Certificate
ISO/IEC 17025 Accredited Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
500 g - 1 g
Certificate
Traceable Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
500 g - 1 g
Certificate
No Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
1 kg - 1 g
Certificate
ISO/IEC 17025 Accredited Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
1 kg - 1 g
Certificate
Traceable Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
1 kg - 1 g
Certificate
ISO/IEC 17025 Accredited Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
2 kg - 1 g
Certificate
No Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
2 kg - 1 g
Certificate
Traceable Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
2 kg - 1 g
Certificate
No Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
(2) 2 kg - 1 g
Certificate
ISO/IEC 17025 Accredited Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
(2) 2 kg - 1 g
Certificate
Traceable Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
(2) 2 kg - 1 g
Certificate
No Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
5 kg - 1 g
Certificate
ISO/IEC 17025 Accredited Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
5 kg - 1 g
Certificate
Traceable Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
5 kg - 1 g
Certificate
No Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
10 kg - 1 g
Certificate
ISO/IEC 17025 Accredited Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
10 kg - 1 g
Certificate
Traceable Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
10 kg - 1 g
Certificate
No Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
20 kg - 1 g
Certificate
ISO/IEC 17025 Accredited Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
20 kg - 1 g
Certificate
Traceable Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
20 kg - 1 g
Certificate
No Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
25 kg - 1 g
Certificate
ISO/IEC 17025 Accredited Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
25 kg - 1 g
Certificate
Traceable Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
25 kg - 1 g
Certificate
No Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
30 kg - 1 g
Certificate
ISO/IEC 17025 Accredited Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
30 kg - 1 g
Certificate
Traceable Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
30 kg - 1 g
Certificate
No Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
50 kg - 1 g
Certificate
ISO/IEC 17025 Accredited Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
50 kg - 1 g
Certificate
Traceable Certificate
ASTM Class
Troemner UltraClass
Weight Set Range
50 kg - 1 g
ASTM Reference Calibration Weight Sets Product Details
Applications
Use as a primary reference for calibrating other mass standards and use for traceability between national mass standards and ASTM Class 1 weights and lower. This class is appropriate for calibrating high-precision balances with a readability as low as 0.01 mg.
Construction
Weights 1 g and above are two-piece. Weights 500 mg and below are one-piece. Weights ≥2 kg are 316 Stainless Steel. Weights 1 kg to 1 g are Troemner Alloy 8. Weights 500 mg - 5 mg are 304 Stainless Steel. Weights below 5 mg are Aluminum.
Design Features
Weights 50 kg through 1 g are cylindrical with handling knob. Weights 500 mg and below are flat with one end turned up for easy handling.
Similar Products