Overview
ISO 5655:2000 - Photography - Industrial radiographic films (roll and sheet) and metal intensifying screens - Dimensions defines preferred and recognized sizes, cutting/tolerance rules, measurement conditions and package marking for industrial radiographic films and metal intensifying screens. It standardizes roll widths and lengths, sheet dimensions, intensifying screen sizes, and labeling so manufacturers, equipment designers and users achieve interchangeability and reliable film handling.
Key topics and requirements
- Scope: Preferred and recognized sizes for film in rolls and sheets, and metal intensifying screens; package marking requirements. (Shaping of screen corners is not specified.)
- Measurement conditions: Dimensions apply at manufacture under (23 ± 2) °C and (50 ± 5) % RH (ISO 554). Instrument calibration at 20 °C (ISO 1).
- Dimensional stability: Polyester-based film is normally used; permitted departure at package opening is limited (no more than +0.05 % above maximum and −0.08 % below minimum).
- Films in rolls:
- Preferred roll widths include values such as 35, 60, 70, 100, 130, 180, 300, 350, 400 mm (see standard tables for exact aim/tolerances).
- Slitting/tolerance rules apply for non-standard widths (rules depend on nominal width; e.g., up to 12 cm: nominal −1.5 mm ±0.5 mm).
- Preferred roll lengths: up to 100 mm width - 90, 100, 150, 305 m; wider rolls - typically 60 m.
- Films in sheets:
- Preferred sheet sizes listed (examples: 6×24 cm, 9×12 cm, 10×24 cm, 18×24 cm, 30×40 cm, 35×43 cm).
- Temporarily recognized legacy sizes are listed and recommended to be phased out.
- Cutting/tolerance rules for metric sizes (e.g., up to 12 cm: nominal −1.5 mm ±0.5 mm; 12–65 cm: nominal −2.0 mm ±1.0 mm).
- Squareness and edge straightness: checked by comparing sheet perimeter against two perfect rectangles defined by min/max tolerances; no perimeter point may fall inside smaller or outside larger rectangle.
- Corner rounding: allowed within specified limits; no steps or sharp features.
- Intensifying screens:
- Preferred and recognized screen dimensions are tabulated; rules for new sizes (dimension = nominal width minus defined offsets) are provided.
- Package marking:
- Packaging must indicate product name/size, safelight conditions, shipping/storage conditions and other useful data (manufacturer, reference, batch/lot, metric dimensions, expiry/develop-before date).
- Wording for conformity: “COMPLYING WITH ISO 5655”.
Applications - who uses this standard
- Manufacturers of industrial radiographic film and metal intensifying screens
- X‑ray cassette and screen designers / equipment manufacturers
- Quality managers and procurement teams in nondestructive testing (NDT) / industrial radiography
- Laboratories and service providers handling and storing radiographic film
Related standards
- ISO 554 (conditioning/testing atmospheres) and ISO 1 (reference temperature for length measurements) are normative references cited by ISO 5655.
- Prepared by ISO/TC 42 (Photography); aligns with related film and imaging standards for NDT consistency.
Keywords: ISO 5655, industrial radiographic film dimensions, roll film sizes, sheet film sizes, intensifying screen sizes, radiographic film tolerances, package marking, industrial radiography standards.
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