Overview
ISO 14315:1997 - "Industrial wire screens - Technical requirements and testing" specifies terminology, tolerances, material requirements and test methods for pre‑crimped or pressure‑welded industrial wire screens used for screening operations. It applies to screens made from high‑tensile steel, stainless steel or other weavable metals (not to woven wire cloth covered by ISO 4783‑2). The standard also defines inspection documentation, ordering information and delivery conditions for rolls and cut‑to‑size screening surfaces.
Key topics and technical requirements
- Terminology and geometry: definitions for aperture width (w), wire diameter (d), pitch (p), warp/weft, open screening area and mass per unit area.
- Tolerances on aperture width: two tolerance classes - Y for average aperture deviation (± Y) and X for maximum single‑aperture positive deviation. Specific tolerance values depend on nominal aperture sizes (see standard tables).
- Wire diameter: pre‑weaving tolerances per ISO 4782; after weaving the diameter is untoleranced and must be measured per the test methods in ISO 14315.
- Permissible blemishes: defined maximum number of major manufacturing blemishes per unit area, with separate provisions for cut‑to‑size pieces. Minor blemishes are acceptable unless they affect aperture size or surface quality.
- Screening surface tolerances: dimensional tolerances for rectangular screening surfaces, with and without hook strips (side or end tensioning), including parallelism and hook strip length rules.
- Materials: allowable materials include high‑tensile steel (carbon content 0.37–0.85 %, tensile strength range indicated in the standard), stainless steel (specified by purchaser) or other agreed metals. Calculated mass per unit area is provided (actual mass may be up to 3 % lower).
- Test methods: measurement procedures for wire diameter (micrometer/dial gauge), average aperture (measuring spans of multiple pitches) and maximum aperture size, plus margins to be disregarded at roll edges.
- Inspection documents: statement of compliance, supplier test report, optional inspection certificate, chemical analysis and other agreed tests.
- Ordering and delivery: essential order details (quantity, aperture size, wire diameter, material, weave type, tolerances), roll length/width tolerances, and labelling/packing requirements.
Applications and users
ISO 14315 is used by:
- Manufacturers of industrial wire screens and screen components
- Screening equipment designers and OEMs specifying screening media
- Quality control laboratories performing acceptance testing and inspection
- Purchasers and end‑users in industries performing mechanical screening (mining, aggregates, recycling, mineral processing, chemical and food screening applications) who need clear specifications for performance and interchangeability
Related standards
- ISO 2194 - nominal sizes of apertures
- ISO 4782 - metal wire for wire screens
- ISO 4783‑1 and ISO 4783‑3 - guidance on aperture/wire combinations and preferred combinations for pre‑crimped or pressure‑welded screens
- (Referenced update) ISO 9044 - industrial woven wire cloth
Keywords: ISO 14315:1997, industrial wire screens, aperture width, wire diameter, test methods, tolerances, screening surfaces, hook strips, inspection certificate.