Rice Lake 50 g ASTM Class 1 Calibration Weight with Case, Stainless Steel (12964)

Description

Rice Lake 50 g ASTM Class 1 Calibration Weight with Case, Stainless Steel (12964)

The Rice Lake 50 g ASTM Class 1 calibration weight (Rice Lake part number 12964) is a polished stainless steel, cylindrical test weight made to ASTM E617 and traceable to NIST. It comes packaged in its own protective case with a handling glove.

Class 1 is the precision class used to check and calibrate analytical and precision balances, and it is also a dependable reference for moisture analyzers, compact lab scales, jewelry and pharmacy balances, and in-house quality checks. The weight has a density of 7.84 g/cm3 and a polished finish that resists contamination. Weights under 100 g are solid, one-piece weights with no adjustment cavity. Under ASTM E617, the tolerance for a 50 g Class 1 weight is plus or minus 0.12 mg.

Rice Lake 50 g ASTM Class 1 Key Features

• ASTM E617 Class 1. The precision class for routine checks and calibration of analytical and precision balances.
• NIST traceable through Rice Lake, with certification available.
• Polished stainless steel cylindrical design with a density of 7.84 g/cm3.
• One-piece construction. Weights under 100 g are solid, one-piece weights with no adjustment cavity.
• Protective case and glove. The weight ships in its own case with a glove so skin oils never touch it.
• Multi-use reference. Use it for daily or weekly balance checks, after moving a balance, for repeatability tests, and for audits in quality systems.

Rice Lake 50 g ASTM Class 1 Specifications

Applications for the Rice Lake 50 g ASTM Class 1

• Calibration and daily checks of analytical and precision balances
• Moisture analyzers and compact laboratory scales
• Jewelry, gem and precious metal balances
• Pharmacy, compounding and cannabis balances
• ISO 9001, GMP and GLP quality programs
• Calibration labs and field service kits

How to Use a Class 1 Calibration Weight

• Let the weight and balance reach room temperature before testing.
• Handle the weight only with the glove or tweezers, never bare hands.
• Zero the balance, place the weight in the center of the pan and record the reading.
• Compare the reading with your balance tolerance; calibrate the balance if it is out of tolerance.
• Return the weight to its case and keep the case closed between uses.

Building a set? See the Rice Lake 100 g ASTM Class 1 weight, Rice Lake 200 g ASTM Class 1 weight. MNM Scales can also supply a calibration certificate; contact us.

Manufacturer Information

See the Rice Lake ASTM Class 1 calibration weights page and the Rice Lake calibration weights brochure (PDF).

Frequently Asked Questions

What is the tolerance of the Rice Lake 50 g ASTM Class 1 weight?

ASTM E617 sets the Class 1 tolerance for a 50 g weight at plus or minus 0.12 mg.

What balances is a Class 1 weight used for?

Class 1 weights are used to check and calibrate analytical and precision balances, and also work as references for lab, jewelry, pharmacy and moisture balances.

Is it NIST traceable?

Yes. Rice Lake ASTM weights are NIST traceable and made to ASTM E617.

What comes with the weight?

A single weight packaged in a protective case with a handling glove.

What is the Rice Lake part number?

Rice Lake part number 12964.

Why Buy Your Rice Lake Equipment from MNM Scales?

MNM Scales is one of the largest scale distributors in the country, with one of the largest selections of medical, retail, laboratory and industrial scales in every category. We offer free shipping in the continental U.S., in-house calibration and certificates, and real help choosing and setting up the right model from our Houston-area team. Businesses and volume buyers can contact us for a quote. Browse all Rice Lake Weighing Systems scales or the full Rice Lake lineup.