A referee-assay record set for Indian base-metals and bullion trading

A referee-assay record set for Indian base-metals and bullion trading — scarce because it is the tie-breaker measurement, produced when buyer and seller disagree, and it resolves exchange-settled trades. Field set per case: sample identity with chain-of-custody and retained-sample splits; representative sampling location (yards, ports, warehouses, and the BME House sampling centre in Mumbai's Gulalwadi market); composition results by accredited method (fire assay weighed to 0.0001 g resolution, optical-emission and ICP spectrometry, atomic absorption, X-ray fluorescence, classical wet chemistry) reported against ASTM and IS standards; off-specification and contamination determinations; and the settlement-grade certificate issued under NABL accreditation (ISO/IEC 17025:2017, certificate NABLT0726MH18640) with ILAC MRA reciprocity. Coverage spans copper, aluminium, lead, zinc, nickel, tin, brass and bronze, ferro-alloys (FeV, FeMo, FeNi, FeSi, FeCr), scrap and ingots, and gold and silver — priced off LME and Comex and settled through Indian clearing workflows.

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Coverage

Universe, instruments and categories.

Industry: Testing & Laboratory Services & ConsultingCopper
Instruments: commoditiesderivativesequities

Dataset card

Type: not stated
Format: Per-case PDF assay certificates and test reports with chain-of-custody documentation; internally structured laboratory records keyed to sample, method and standard, held in laboratory systems and not published in aggregate
Volume: Moderate volume with exceptional value density: each certificate is a disputed or settlement-critical case rather than routine quality assurance, and the lab is the preferred partner to an exchange with 2,500-plus member traders and is empanelled on NSE Clearing base metals. That implies thousands of accredited case records since the exchange approvals, each carrying multiple analyte determinations plus a divergence outcome — plausibly tens of thousands of individual analytical results with attached settlement outcomes.
Users: N/A — an accredited laboratory issuing reports to instructing parties, not a platform. The commercial universe it serves is stated: the 2,500-plus member traders of Bharat Metal Exchange, plus bullion refiners, jewellery houses, hallmarking centres and non-ferrous traders
History: 8 years
Update frequency: not stated
Growth: Active — an operating accredited laboratory with current exchange empanelments, an industry-segmented service site and an active quote funnel; no indication of credential lapse or contraction
Launched: Exchange-approval dates are the reliable anchors: ICCL/BSE-approved assayer from November 2018 and NSE Clearing-empanelled independent assayer for base metals from February 2021, with both appointment letters published on the page. The underlying engineering and testing business predates those approvals.
Delivery: not stated
Entity mapping: not stated
Sample: not stated
Point-in-time: not stated
Licence: not stated

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