Normas ISO

Pipes and fittings of plastics materials -- Fittings for domestic and industrial waste pipes -- Basic dimensions: Metric series-- Part 1: Unplasticized poly(vinyl chloride) (PVC-U)

Methods for the petrographic analysis of bituminous coal and anthracite-- Part 4: Method of determining microlithotype, carbominerite and minerite composition

Predominantly key-operated cast iron gate valves for underground use

Liquid hydrocarbons -- Dynamic measurement -- Proving systems for volumetric meters-- Part 2: Pipe provers

Plastics film and sheeting -- Determination of impact resistance by the free-falling dart method-- Part 1: Staircase methods

Preparation of steel substrates before application of paints and related products -- Visual assessment of surface cleanliness-- Part 1: Rust grades and preparation grades of uncoated steel substrates and of steel substrates after overall removal of previous coatings