Overview
ISO 13507:2012 specifies standard short terms for analytical characteristics to be used in certificates of analysis for rubber compounds, raw rubbers and compounding materials. Published by ISO and prepared by Technical Committee ISO/TC 45 (Rubber and rubber products), the document standardizes the abbreviated names and associated units that laboratories, suppliers and manufacturers should report on certificates of analysis to ensure clear, consistent communication across the rubber supply chain.
Key topics and requirements
- Purpose: provide a single, authoritative list of short terms for analytical characteristics appearing on certificates of analysis for rubber-related materials.
- Definitions: distinguishes common industrial term (usual descriptive name) from standard short term for certificate of analysis (the approved abbreviation).
- Core content: Table 1 lists the standard short terms and corresponding units for a broad range of analytical properties. Examples include:
- Moisture content (Moisture content, % by mass)
- Mooney viscosity (ML(x+y) at … °C, Mooney units)
- Total sulfur/Free sulfur/Combined-sulfur (Total sulfur content, % by mass)
- Density (Density at … °C, kg/l or g/ml)
- pH (pH units)
- CTAB adsorption number (CTAB, m2/g)
- BET surface area (NSA, m2/g) and STSA
- Iodine number/index (mg/g or g/100 g)
- Ash, volatile matter, extractables and specific additive contents (e.g., zinc oxide, antioxidants)
- Applicability notes: several entries are noted as applicable to latex; units and footnotes clarify measurement conventions (e.g., mPa·s = cP).
- Compliance expectation: organizations issuing certificates of analysis are expected to adopt these standard short terms to improve clarity and reduce ambiguity.
Applications and who uses it
- Laboratories and quality-control teams use ISO 13507:2012 to format certificates of analysis consistently for:
- Raw rubber producers
- Rubber compounding facilities
- Additives and ingredient suppliers
- OEMs and downstream rubber product manufacturers
- Benefits:
- Reduces misinterpretation of analytical results
- Simplifies data exchange between suppliers and customers
- Supports regulatory, procurement and traceability processes across global rubber supply chains
Related standards
- Developed by ISO/TC 45 - best used alongside applicable test methods and material standards from ISO for rubber testing and specification. Users should reference ISO testing method standards when preparing or interpreting measurement results.
Keywords: ISO 13507:2012, rubber compounds, certificates of analysis, short terms, raw rubbers, compounding materials, analytical characteristics, CTAB, Mooney viscosity, BET, certificates.