ISO 19427:2019 pdf free

ISO 19427:2019 pdf free.Steel wire ropes一Pre-fabricated parallel wire strands for suspension bridge main cable一Specifications
The traceability shall be done from the beginning to the end of manufacturing. The manufacturer shall use suitable means to ensure the conformity of products and identify the status of products with respect to monitoring and measurement requirements throughout production and delivery.
The manufacturer shall control the unique identification of the products, and shall retain the documented information necessary to enable traceability.
The gauge wire shall be in the outside of the PPWS. The total length of the PPWS and all measuring points for the sockets, saddles and the key point such as main span middle point and side span middle point shall be marked on the gauge wire under specific marking load while temperature is uniform. The length of gauge wire shall take into account elongation, sag correction and temperature correction based on unstressed length of the cable.
When placing the order, the purchaser may nominate the material of sockets. Socket material shall be agreed between the purchaser and manufacturer. The chemical composition and mechanical properties, such as tensile and Charpy properties, shall be agreed between the purchaser and manufacturer.
The socket castings shall be subject to visual, magnetic particle and ultrasonic inspection. The other non-destructive exarminations (such as liquid penetration, radiographic etc.) shall be done in conditions agreed at the time of enquiry and order. The severity levels for every method, areas of the socket to be tested, percentage and/or frequency of testing shall be agreed between the manufacturer and purchaser. The acceptance criteria (severity level) shall be agreed between the manufacturer and purchaser.
For each socket, wherever transitions cause stress concentrations, transitions shall generally be rounded and machined. Edges on the sockets shall be rounded to make them suitable for zinc coating or painting. Specification for corrosion protection of socket shall be specified by the purchaser.ISO 19427 pdf free download.