ISO 5872:2025 pdf download,Oil and gas industries including lower carbon energy — Pipeline transportation systems — Vocabulary. ISO 5872:2025 is a vocabulary standard for the oil and gas (including lower-carbon energy) pipeline transportation sector. Its main purpose is to establish fundamental terms and definitions used across the pipeline lifecycle, so people can communicate consistently when

ISO 17744:2025 pdf download,Plastics — Determination of specific volume as a function of temperature and pressure, pvT diagram — Piston apparatus method. ISO 17744:2025 describes how to determine the specific volume of plastics as a function of temperature and pressure, producing a pvT diagram. It gives standardized procedures for measuring both molten and solid-state material

ISO 609:2025 pdf download,Coal and coke — Determination of carbon and hydrogen — High temperature combustion method. ISO 609:2025 specifies a method to determine the carbon and hydrogen content of coal and coke using a high-temperature combustion approach. In this procedure, a prepared sample is combusted in a controlled atmosphere so that carbon and hydrogen

ISO 11781:2025 pdf download,Molecular biomarker analysis — Requirements and guidance for single-laboratory validation of qualitative real-time polymerase chain reaction (PCR) methods. ISO 11781:2025 provides minimum requirements and performance criteria for performing a single-laboratory validation of qualitative (binary) real-time PCR methods used to detect specific DNA sequences in foods. It is designed to ensure that a