ISO 16259:2025 pdf download,Ships and marine technology — Performance test procedures of LNG BOG re-liquefaction system on board a ship. ISO 16259:2025 establishes the requirements and test procedures for conducting a performance test. The purpose of this test is to verify the mechanical characteristics of the onboard liquefied natural gas (LNG) boil-off gas (BOG) re-liquefaction

ISO 13670:2025 pdf download,Fasteners — Reverse-taper grooved pins — One quarter-length progressive grooves on both sides. ISO 13670:2025 defines the specifications for reverse-taper grooved pins featuring a quarter-length progressive groove on each side and closed ends. It covers pins manufactured from steel and stainless steel, with nominal diameters ranging from 2 mm to 25 mm.

ISO 5106:2025 pdf download,Traditional Chinese medicine — Polygala tenuifolia and Polygala sibirica root. ISO 5106:2025 defines the minimum quality criteria and testing procedures for the roots of Polygala tenuifolia and Polygala sibirica. It is applicable to these roots when traded and utilized as natural medicines in international commerce, which includes both Chinese materia medica (in their complete,

ISO 20686:2025 pdf download,Footwear — Critical substances potentially present in footwear and footwear components — Determination of certain organic solvents. ISO 20686:2025 establishes a test method for quantifying residues of specific organic solvents (listed in Annex A) in footwear materials, using gas chromatography-mass spectrometry (GC-MS). The method is applicable to footwear materials in which the

ISO 21564:2025 pdf download,Health informatics — Terminology resource map quality measures and requirements (MapQual). ISO 21564:2025 specifies quality requirements for creating a map between different terminological systems. It defines metrics to evaluate the quality and usefulness of such maps. These metrics enable the determination of map types, conformance levels, and their implications for typical application