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Solid mineral fuels — Determination of fusibility of ash — High-temperature tube method

Audit data collection — Customs and indirect tax extension

Overview ISO 5401:2024 - "Audit data collection - Customs and indirect tax extension" is an ISO standard that extends ISO 21378 to address audit data needs specific to customs duties and indirect tax…

Audit data collection. Customs and indirect tax extension

1 Scope This document specifies the functional requirements that build on ISO 21378 for audits in the areas of customs duties and indirect taxes [e.g. value-added tax ( VAT ) and excise duties]. It a…