The purpose of the IOGP S-719 specification documents is to define a minimum common set of requirements for the procurement of water mist fire protection systems in accordance with NFPA 750, 2023 Edition (effective date of 9th April 2022), Standard on Water Mist Fire Protection Systems, for application in the petroleum and natural gas industries. The IOGP S-719 specification documents follow a common structure comprising a specification, also known as a technical requirements specification (TRS), a procurement data sheet (PDS), an information requirements specification (IRS) and a quality requirements specification (QRS). These four specification documents, together with the purchase order, define the overall technical specification for procurement.