Weighing scale calibration checks the reading against test weights. Legal Metrology stamping is the verification process for scales used in trade. Hindustan Scale Company (HSCo) arranges calibration certificates through NABL-accredited labs and arranges stamping and re-verification across India. Tell the team which service and documents you need.

Calibration certificates through NABL-accredited labs

HSCo arranges certificates through NABL-accredited labs it works with. Send the model, capacity, location and the certificate requirements from your quality team or customer. The team will advise on the service arrangements. The calibration guide explains checks to make using your scale’s instructions.

Legal Metrology stamping and re-verification

Every new HSCo scale carries a one-year warranty plus one year of Legal Metrology stamping. HSCo arranges re-verification when it falls due, anywhere in India. If a port is fitted to a scale already in use, HSCo arranges re-verification where required. Send the existing stamping details when requesting service.

AMC: the checks on a calendar

An annual maintenance contract can cover scheduled visits, accuracy checks, repairs and breakdown support. Agree the visits, parts and other work included before the contract starts. For a fault needing attention now, raise a repair request; the team will tell you whether the scale comes in or an engineer visits.

Test weights for your own checks

HSCo supplies testing and calibration weights. Send the scale model, capacity and smallest displayed increment so the team can advise on the weight and class for the check you need. A category name alone does not specify the required test weight.

M1 Class Stainless Steel Weights – 1 mg to 50 kg

Price on Request

Class M1 stainless-steel test weights: wire weights 1–500 mg and cylindrical knob weights 1 g–50 kg, for checking and calibrating commercial and industrial scales.

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F1 Class Stainless Steel Weights – 1 mg to 50 kg

Price on Request

Class F1 stainless-steel reference weights for calibrating precision balances and checking F2 and M class weights: wire weights 1–500 mg and cylindrical knob weights 1 g–50 kg. Price on request.

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Weight Box 1 mg – 200 g, 23 Pieces – Classes E1, E2, F1, F2, M1, M2

Price on Request

23-piece stainless steel weight set, 1 mg to 200 g, in OIML classes E1 to M2, with NABL calibration. Aluminium case with picker, cleaning cloth and brush.

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Cast Iron Weight 20 kg – Class M1, Rectangular with Handle

₹2,000.00 (ex. GST)

20 kg cast iron test weight, class M1: rectangular block with a built-in handle, painted anti-rust finish. For checking and calibrating platform scales and weighbridges.

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What to send HSCo

Send the model, capacity, location, number of scales and the service needed. Include any certificate or stamping details you have. Call +91-7045922251 or +91-7045922206, email hsc@hindustanscale.com, or use the site’s WhatsApp widget.

Calibration and stamping: questions customers ask

Calibration compares the scale’s reading with test weights and records the result. Legal Metrology stamping is verification for trade use. HSCo arranges calibration certificates through NABL-accredited labs and stamping or re-verification across India. Tell the team how the scale is used and what paperwork your customer or quality team needs.

HSCo arranges calibration certificates through NABL-accredited labs it works with. Accreditation belongs to the laboratory; HSCo does not claim to be the accredited lab. Send the scale model, capacity, location and certificate requirements so the team can arrange the work with the laboratory.

Every new HSCo scale ships with one year of Legal Metrology stamping, alongside a one-year warranty. When re-verification falls due, HSCo arranges it anywhere in India. Send the model, location and existing stamping details so the service team can advise on the arrangements for your scale.

Test weights let you compare the scale’s reading with a known weight between formal calibrations. The weights needed depend on the scale and the check being made. Send HSCo the model, capacity and smallest displayed increment for advice on the class and denominations; do not choose from capacity alone.