Nội dung đầy đủ Thu gọn # Physical Market Guidelines | LBMA
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Physical Market Guidelines | LBMA Find out more Register for the Global Precious Metails Conference in Sorrento, Italy Global Global 中文網站 Contact About About About LBMA Our Team LBMA Board Independent Decision-Making Committee LBMA Sub-Committees Origins of the London Bullion Market History of Global Trade in Bullion Member login Market Standards Market Standards As the independent authority for precious metals, we set standards that uphold trust in the global market. Market Overview About Loco London A Guide to the Loco London Precious Metals Market Training and Education Our Standards Market Standards Global Precious Metals Code Good Delivery Responsible Sourcing Incident Review Process Regulation Resources Financial Regulation Due Diligence Regulation REACH Review Process Case Studies HQLA WGC and LBMA Launch Joint HQLA Website Gold and HQLA: Correcting Misleading Online Information LBMA Precious Metals Market Report Read about the latest quarter in the precious metals market Read now Membership Membership LBMA Membership demonstrates a commitment to uphold global standards within the precious metals market. Overview About Membership Current Members Rules for Members Become a Member How to Join Membership Eligibility Membership Benefits LBMA Subscriber Membership FAQs Already a Member? Login to stay updated with LBMA Member news and events Log in here Good Delivery Good Delivery The standard trusted around the world, Good Delivery guarantees metal quality in the market. LBMA owns and manages the Good Delivery Lists for both gold and silver. Overview About Good Delivery Good Delivery Rules and Governance Good Delivery FAQs Lists Good Delivery Current List Data Good Delivery Former List Data Russian Good Delivery Bars Information Application Process How to apply for Good Delivery accreditation Advancing Standards Proactive Monitoring Proficiency Testing Scheme Resources Reference Materials Vault Operators Training Visual Guide Physical Market Guidelines Past Assaying and Refining Conferences Good Delivery Newsletters GBI Gold Bar Security Features Gold Bar Integrity Ecosystem GDL Newsletter Read the latest newsletter from our Good Delivery team on Committee updates, refinery visits and more Read now Responsible Sourcing Responsible Sourcing All LBMA Good Delivery List Refiners must adhere to our Responsible Sourcing Programme. With annual independent auditing and public reporting, the Programme builds global demand for responsible sourcing. Overview Responsible Sourcing Approved Assurance Providers Overview Approved Assurance Providers LBMA's ASM Initiative Guidance & Tools Guidance Documents Refiners Toolkit Consultations Public Consultation: Responsible Gold Guidance Version 10 Disclosure Guidance Version 3 Resources International Bullion Centre Recommendations Introductory Training Module Responsible Sourcing FAQs Reporting Country of Origin Data Sustainability and Responsible Sourcing Reports Responsible Sourcing Newsletters Review Process Case Studies LBMA Position on the North Mara Mine Claim Supporting Pathways for
Responsible ASM LBMA’s new report explores the progress made between 2022-2025 to help build the foundations for greater inclusion of responsibly sourced ASM gold in formal supply chains. Read now Responsible Gold Guidance V10: Public Consultation RGG10 draws on implementation experience since the introduction of V9, developments in responsible sourcing practice, and LBMA’s commitment to continuous improvement. Discover more Responsible Sourcing Newsletter Summit discussions moved from dialogue to action, LBMA held its first in-person IBC roundtable, and a public consultation is launched on RGG10. Read now Pricing & Data Pricing & Data View information about LBMA prices and data. Overview About LBMA Daily Auction Prices LBMA Gold Price LBMA Silver Price LBMA Platinum and Palladium Price Clearing Vaulting Data LBMA Precious Metal Prices LBMA Daily Trade Reporting Data Clearing Data London Vault Data Value Dates Country of Origin Data LBMA Responds to PRA Consultation Paper: Modernising the Liquidity Policy Framework LBMA supports the PRA’s focus on liquidity usability, including monetisation speed, operational readiness and access to Bank of England liquidity. Discover more News News Read the latest news, publications and resources which outline our key initiatives. News and Resources Newsroom Alchemist Publications LBMA Annual Precious Metals Forecast Survey Centenary of the LBMA Gold Price Wonders of Gold Press Page IBA to Administer LBMA Platinum and Palladium Price Benchmarks from 1 July 2026 A licence from IBA is required in order to obtain, use or redistribute real-time or historical LBMA Platinum and Palladium Price data from that date. Find out more LBMA in Singapore: Strengthening Asia's Role in the Global Gold Market The 2026 Asia Pacific Metals Conference underlined Asia’s growing importance in global precious metals and the need for trusted, resilient and better-connected markets. Read more Events Events Read the latest news, upcoming events and resources. Events and Webinars Upcoming Events Past Events Webinar Series Standards of Conduct at LBMA Events Global Precious Metals Conference 2026 Join us in Sorrento where we will be delivering world class insight, networking and debate, while celebrating a landmark 25 years of this flagship event. Register now Conference 2026 Market Standards Market Standards As the independent authority for precious metals, we set standards that uphold trust in the global market. Market Overview About Loco London A Guide to the Loco London Precious Metals Market Training and Education Our Standards Market Standards Global Precious Metals Code Good Delivery Responsible Sourcing Incident Review Process Regulation Resources Financial Regulation Due Diligence Regulation REACH Review Process Case Studies HQLA WGC and LBMA Launch Joint HQLA Website Gold and HQLA: Correcting Misleading Online Information LBMA Precious Metals Market Report Read about the latest quarter in the precious metals market Discover more Membership Membership LBMA Membership demonstrates a commitment to uphold global standards within the precious metals market. Overview About Membership Current Members Rules for Members B
ecome a Member How to Join Membership Eligibility Membership Benefits LBMA Subscriber Membership FAQs Already a Member? Login to stay updated with LBMA Member news and events Discover more Good Delivery Good Delivery The standard trusted around the world, Good Delivery guarantees metal quality in the market. LBMA owns and manages the Good Delivery Lists for both gold and silver. Overview About Good Delivery Good Delivery Rules and Governance Good Delivery FAQs Lists Good Delivery Current List Data Good Delivery Former List Data Russian Good Delivery Bars Information Application Process How to apply for Good Delivery accreditation Advancing Standards Proactive Monitoring Proficiency Testing Scheme Resources Reference Materials Vault Operators Training Visual Guide Physical Market Guidelines Past Assaying and Refining Conferences Good Delivery Newsletters GBI Gold Bar Security Features Gold Bar Integrity Ecosystem GDL Newsletter Read the latest newsletter from our Good Delivery team on Committee updates, refinery visits and more Discover more Responsible Sourcing Responsible Sourcing All LBMA Good Delivery List Refiners must adhere to our Responsible Sourcing Programme. With annual independent auditing and public reporting, the Programme builds global demand for responsible sourcing. Overview Responsible Sourcing Approved Assurance Providers Overview Approved Assurance Providers LBMA's ASM Initiative Guidance & Tools Guidance Documents Refiners Toolkit Consultations Public Consultation: Responsible Gold Guidance Version 10 Disclosure Guidance Version 3 Resources International Bullion Centre Recommendations Introductory Training Module Responsible Sourcing FAQs Reporting Country of Origin Data Sustainability and Responsible Sourcing Reports Responsible Sourcing Newsletters Review Process Case Studies LBMA Position on the North Mara Mine Claim Supporting Pathways for Responsible ASM LBMA’s new report explores the progress made between 2022-2025 to help build the foundations for greater inclusion of responsibly sourced ASM gold in formal supply chains. Discover more Responsible Gold Guidance V10: Public Consultation RGG10 draws on implementation experience since the introduction of V9, developments in responsible sourcing practice, and LBMA’s commitment to continuous improvement. Discover more Responsible Sourcing Newsletter Summit discussions moved from dialogue to action, LBMA held its first in-person IBC roundtable, and a public consultation is launched on RGG10. Discover more Pricing & Data Pricing & Data View information about LBMA prices and data. Overview About LBMA Daily Auction Prices LBMA Gold Price LBMA Silver Price LBMA Platinum and Palladium Price Clearing Vaulting Data LBMA Precious Metal Prices LBMA Daily Trade Reporting Data Clearing Data London Vault Data Value Dates Country of Origin Data LBMA Responds to PRA Consultation Paper: Modernising the Liquidity Policy Framework LBMA supports the PRA’s focus on liquidity usability, including monetisation speed, operational readiness and access to Bank of England liquidity. Discover more News News Read the latest news, publications and resources which outline our key init
iatives. News and Resources Newsroom Alchemist Publications LBMA Annual Precious Metals Forecast Survey Centenary of the LBMA Gold Price Wonders of Gold Press Page IBA to Administer LBMA Platinum and Palladium Price Benchmarks from 1 July 2026 A licence from IBA is required in order to obtain, use or redistribute real-time or historical LBMA Platinum and Palladium Price data from that date. Discover more LBMA in Singapore: Strengthening Asia's Role in the Global Gold Market The 2026 Asia Pacific Metals Conference underlined Asia’s growing importance in global precious metals and the need for trusted, resilient and better-connected markets. Discover more Events Events Read the latest news, upcoming events and resources. Events and Webinars Upcoming Events Past Events Webinar Series Standards of Conduct at LBMA Events Global Precious Metals Conference 2026 Join us in Sorrento where we will be delivering world class insight, networking and debate, while celebrating a landmark 25 years of this flagship event. Discover more Global Global Global 中文網站 Contact About About About LBMA Our Team LBMA Board Independent Decision-Making Committee LBMA Sub-Committees Origins of the London Bullion Market History of Global Trade in Bullion Member login Good Delivery Physical Market Guidelines The following guidelines have been designed to inform and assist those who work in the Good Delivery physical market, particularly in relation to electronic weighing and non-destructive testing. layout/blocks/body/_downloads --> Weighing Guidelines In general, a good electronic balance is one of the most accurate and precise measuring devices in any laboratory or vault. The current generation of electronic balances report mass with 7 significant digits and determine that mass of gold bars with a readability to 0.0003 tr oz (for large gold bars). The purpose of this guide is to provide some insight into how electronic balances work, factors that affect mass measurement, and discuss the best practices for mass measurement of precious metal bars. Weighing Guidelines layout/blocks/body/_text --> Non-Destructive Testing Guidelines The only way to accurately determine the fineness of a gold bar is to take a representative sample and analyse by Fire Assay and/or an appropriate instrumental technique. Representative sampling will always result in the destruction of the bar. layout/blocks/body/_text --> Energy Dispersive X-Ray Fluorescent Spectroscopy (EDXRF) Elemental surface analysis can only be used to verify possible fineness if the sample is known to be homogenous. Due to the Mass Absorption Coefficient (MAC) of gold, the penetration of X-Rays is very low; generally, less than 10 microns so this technique can be deceived by simple plating. Ultrasound Effective in identifying materials in the bar that are not gold, for example substitute inserts, air pockets or other trapped material. False readings can be made if obturation is poor. No information on fineness. Eddy Current A very quick and easy way of determining whether the bar might – or might not – be gold. Not definitive. Only accurate to a certain depth, only tests the area of the probe surface. Very limited informa
tion on fineness, however, can provide limited information on the assay if the matrix is constant. At present there does not appear to be a definitive non-destructive testing solution that can be endorsed and so the best risk mitigation of sub-standard assay remains the Good Delivery eco-system of refineries and chain of custody. As techniques are developed and refined, it will become necessary to review these Guidelines. layout/blocks/body/_related --> Good Delivery Current List Only refiners whose bars have been accredited by LBMA as meeting the exacting standards for trading on the global OTC market appear in the Good Delivery List. Find out more Proactive Monitoring Proactive monitoring is mandatory for all LBMA Good Delivery refiners. It is designed to test their technical competence and ensures that we maintain the highest possible standards. Find out more Stay updated Register to access the latest LBMA news and events through our email alerts Register at MyLBMA LBMA About Us Membership Current Members Contact Us Our Team Newsroom MyLBMA Quicklinks Prices and Data LBMA Daily Trade Reporting Data Good Delivery Alchemist Events Responsible Sourcing A Guide to the Loco London Precious Metals Market 中文網站 © 2026 LBMA 7th Floor, 62 Threadneedle Street, London EC2R 8HP | LBMA Privacy Notice
