EN ISO 9100-8:2005

Overview

EN ISO 9100-8:2005 is a European and international standard specifying the dimensions of vacuum lug finishes for wide-mouth glass containers. This part of ISO 9100 focuses on nominal sizes 63, 66, and 70 mm regular vacuum lug finishes. Developed by CEN in collaboration with ISO Technical Committees for packaging and glass containers, the standard ensures uniformity and compatibility in glass container finishes for vacuum sealing applications.

Vacuum lug finishes are critical for secure sealing of glass bottles, jars, and pots, commonly used in food and pharmaceutical industries. By defining precise dimensional criteria, this standard supports quality assurance, packaging efficiency, and product safety.

Key Topics

• Scope: Specifies the design and dimensional requirements for vacuum lug finishes with nominal diameters of 63 mm, 66 mm, and 70 mm, tailored for wide-mouth glass containers.
• Dimensional Specifications: Detailed measurements including diameters, cutter profiles, thread parameters, leading angles, and pitch are included to ensure consistent manufacturing.
• Quality Requirements: Requirements emphasize that sealing surfaces must be free from defects such as checks, dips or crizzles to ensure effective vacuum sealing.
• Tolerances: General tolerances apply as per EN 22768-1 for linear and angular dimensions to maintain manufacturing precision and interchangeability.
• Thread Construction: The standard defines thread geometry, including leads and angles to enable proper cap engagement and removal, ensuring reliable vacuum integrity.

Applications

• Food Packaging: Ensures airtight sealing of glass jars and bottles for food products, preserving freshness and extending shelf life.
• Pharmaceutical Containers: Provides trusted vacuum sealing dimensions for medicines and custom glass containers requiring sterilization and contamination prevention.
• Cosmetic Packaging: Assists cosmetic manufacturers in standardizing container finishes for creams, ointments, and other products requiring vacuum closure.
• Glass Container Manufacturing: Acts as a guideline for glass bottle and jar manufacturers to produce vacuum lug finishes meeting international dimension standards.
• Packaging Equipment Design: Supports machinery and tool designers in creating compatible closures, capping heads, and sealing systems for wide-mouth glass containers.

Related Standards

• EN 22768-1 / ISO 2768-1:1989: General tolerances standard referenced for dimensional accuracy.
• ISO 9100 (Parts 1 to 7): Other parts in the ISO 9100 series covering various sizes and styles of vacuum lug finishes for glass containers.
• CEN/TC 261 Packaging Standards: European standards related to packaging, encompassing material compatibility, safety, and performance.
• CETIE (International Technical Centre for Bottling and Packaging) Specifications: Industry guidelines informing technical aspects of bottling and packaging finishes.

Benefits of Implementing EN ISO 9100-8:2005

• Interchangeability: Ensures that vacuum lug finishes are compatible across manufacturers and closures regardless of origin.
• Enhanced Product Safety: Minimizes packaging failures which can compromise vacuum integrity and product preservation.
• Increased Packaging Efficiency: Standardized finishes simplify production workflows and reduce equipment downtime.
• International Compliance: Facilitates market access and regulatory compliance across European and global markets.
• Reduced Waste: Reliable sealing reduces spoilage and loss, supporting sustainability goals in packaging operations.

Keywords: vacuum lug finishes, wide-mouth glass containers, EN ISO 9100-8:2005, glass container standards, vacuum sealing dimensions, packaging standards, glass bottle finishes, vacuum closure design.