Overview
ISO 20779:2018/Amd 1:2019 is an important amendment to the international standard that governs the generation and collection of total particulate matter (TPM) from cigarettes using a routine analytical smoking machine. This amendment focuses on applying an intense smoking regime to standardized cigarette testing, enhancing the precision and consistency of TPM measurements. Developed by ISO Technical Committee ISO/TC 126 on Tobacco and tobacco products, this standard amendment provides detailed procedural clarifications to improve data reliability in tobacco smoke analysis.
Key Topics
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Total Particulate Matter (TPM) Collection
The document revises methods for generating and collecting total particulate matter from cigarette smoke using analytical machines that simulate intense smoking conditions.
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Routine Analytical Smoking Machine Procedures
Specific steps detail the correct conditioning and insertion of cigarettes into the smoking machine, ensuring that the cigarette's butt contacts the perforated disc within the smoke trap to prevent leakage or deformation.
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Intense Smoking Regime
The amendment clarifies the intense puffing protocol, including exact specifications on puff volumes, intervals, and cigarette positioning, to replicate high-intensity smoking scenarios for measurement purposes.
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Puffing and Sweeping Definitions
Introduction of precise terminology such as "sweep puff"––a puff drawn after extinguishing or removing the cigarette from the holder-used to ensure no residual smoke remains uncollected.
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Handling of Cigarette Butts and Ash
Procedures specify that cigarette butts should remain in place for at least 30 seconds after smoking to allow residual smoke to deposit properly. Ash must fall naturally into the ashtray and not be artificially removed during testing.
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Sequential Smoking and Sweep Puff Counts
Guidelines describe the total number of sweep puffs required in machines with different smoker setups, ensuring uniform sample collection across varying equipment.
Practical Applications
ISO 20779:2018/Amd 1:2019 is essential for laboratories and manufacturers involved in tobacco product testing, research, and regulatory compliance. It provides:
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Standardized TPM Measurement
Enables consistent data collection across different labs and geographic regions, facilitating product evaluation and comparison.
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Regulatory Compliance Support
Assists tobacco companies in meeting stringent international regulatory requirements by adhering to approved TPM testing methods.
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Quality Control
Helps quality assurance teams monitor tobacco product characteristics and smoking regimes ensuring product consistency and performance evaluation.
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Health Research
Supports scientific research on tobacco smoke exposure by providing reliable data on particulate matter generated under intense smoking conditions.
Related Standards
- ISO 3308 – Routine analytical smoking machine – Definitions and standard conditions
- ISO 4387 – Determination of total particulate matter in cigarette smoke
- ISO 15592 – Cigarettes – Measuring tar, nicotine, and carbon monoxide under various smoking regimes
- ISO 8243 – Conditioning and testing atmosphere for tobacco products
By aligning ISO 20779:2018/Amd 1:2019 with these complementary standards, organizations ensure a comprehensive and robust framework for tobacco smoke analysis under intensified smoking conditions.
Keywords: ISO 20779:2018, cigarette testing, total particulate matter, TPM collection, smoking machine, intense smoking regime, tobacco smoke analysis, TPM measurement standard, tobacco product testing, ISO tobacco standards
Open preview (PDF)Cigarettes — Generation and collection of total particulate matter using a routine analytical smoking machine with an intense smoking regime — Amendment 1