Recommendation data sheets (FS)

Cetie FS Series – Recommendations for Bottlers and Their Suppliers

The FS series includes a collection of recommendation data sheets specifically designed to support bottlers, container manufacturers, and closure system suppliers throughout the bottling process.

Developed by industry experts, these documents provide practical guidance and shared technical knowledge on a wide range of topics, such as:
  • Fundamental definitions, calculation methods, and physical principles relevant to packaging design and bottling operations
  • Safety and hygiene requirements, including critical hazard prevention, food safety management, and risk assessments
  • Conformity assessment and certification in line with European directives
  • Good practices for filling lines, storage, traceability, and pressure management in bottles for carbonated and still beverages
  • Headspace specification, tamper-evident finishes, and label application
The promotion of a common language and shared expectations between bottlers and suppliers, complementing Cetie’s quality guidelines. These sheets are essential tools for ensuring consistency, compliance, and product integrity across the packaging and bottling value chain.
FS01.00 - Tip angle calculation
01/01/1995 - Latest update 02/06/2023
This data sheet provides the method to calculate the tip angle of a container made of glass.
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FS02.00 - Impact testing of glass containers
01/01/1995
The following recommendations should be taken into consideration if clients wish to deal with impact testing or if impact testing is included in a formal specification.
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FS03.00 - Glass manufacturing controls for vacuum lug and press-on finishes
01/11/2002 - Latest update 29/11/2017
This fact sheet gives requirements and controls to be observed during glass manufacture to help ensure the optimum performance of containers with Vacuum Lug and Press-on closure systems. These are in addition to the dimensional and other requirements within existing national and international ...
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FS04.00 - Internal pressure strength of carbonated beverage bottles
01/01/1998 - Latest update 26/07/2017
This data sheet gives guidance on the relationship between the internal pressure strength standards used for process control at the point of manufacture and the pressure strength standards applicable at the point of receipt of the bottles by the bottler and in the case of refillable bottles, the ...
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FS05.00 - Warehousing of filled glass containers
01/01/1999
The following guidelines are essential for proper transport and storage of glass containers with vacuum lug finish and closure. Lack of adherence to these guidelines may result in loss of package integrity and stack stability.
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FS06.00 - Conformity assessment/Certification
01/01/2000 - Latest update 26/01/2024
Requirements for conformity with Directive 94/62/EC.These are set down in Annex III - EC document 96/C 382/05.
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FS07.00 - Design headspace recommendations for liquid products in bottles and jars
01/11/2002 - Latest update 15/10/2020
This document specifies design headspace recommendations for liquid products in glass containers. It does not concern containers for powders and tablets or flaconnage-type bottles. Note that for food products in wide-mouth containers with a vacuum seal closure, fill levels determine the level of ...
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FS08.00 - Recommendations for design of cork removal devices
01/03/2002
This data sheet gives recommendations for the design of devices for removing corks from wine bottles. Corks can be made of cork or plastic/synthetic material. 
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FS09.00 - Relationship between mass and capacity for glass containers (Alpha factor)
01/08/2003 - Latest update 01/06/2024
This data sheet proposes a relationship between mass and capacity for normal glass bottles. This relationship, named alpha, can be considered as the lightening factor of a container, independently of its volume. For instance, a 1,5 l bottle with an alpha of 14 has the same lightening factor as a ...
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FS10.00 - Headspace recommendations for some flaconnage products
01/10/2003 - Latest update 18/02/2025
This fact sheet specifies headspace recommendations for some flaconnage products. The percentage values are given on the volume of the filled product.
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FS11.00 - Recommendations of good practices for prevention and detection of critical hazards on bottling lines
01/04/2006 - Latest update 02/10/2023
Critical hazard: either a biological, chemical or physical agent in the product or condition of the product, which has the potential to create an adverse health effect or unsafe conditions for individuals consuming, producing or handling the product.
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FS12.00 - Traceability - Recommendations to bottlers and packers
01/04/2006
This fact sheet has been set up by the Quality Committee of Cetie. Its objective is to help bottlers or packers to establish the traceability of packaging in the final product. These recommendations do not concern the liquid beverage, only the packaging and the bottling activity. The study is ...
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FS13.00 - Food safety management - Recommendations to implement a system of reference
01/07/2007
This fact sheet has been set up by the Quality Committee of Cetie. It contains the main systems of reference and standards about safety and hygiene for foodstuffs which apply to the product, the packaging or both. Its objective is to help the bottling sector in its efforts to meet the market and ...
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FS14.00 - Survey of critical hazards for the bottling industry - Detection and prevention
01/09/2010
Critical defects are those defects that represent a safety hazard for the users of the product; bottling companies cannot accept knowingly to release critical defects in their finished product; therefore, either there exists an efficient way to prevent these defects, or the line should be ...
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FS15.00 - Physical principles for containers filled with non-carbonated products
09/12/2013 - Latest update 03/10/2023
This fact sheet gives an overview of the physical principles which govern the behaviour of still liquids when bottled in rigid containers and the consequences in terms of head space requirements. It concerns in particular glass containers for which elastic deformation can be considered to be ...
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FS15.01 - Use of glass bottles - Pressure generated by a liquid
26/02/2021
This documents specifies the pressure a glass packaging container can withstand. It describes three types of pressures: generated – internal and over a long period.
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FS15.02 - Carbonation level, pressure and maximum temperature for specific products
26/02/2021
This fact sheet gives information, in a table, on CO2 g/l, thermal treatment, maximum temperature and pressure for specific carbonated beverages.
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FS16.00 - Pressure resistance test procedures for products bottled with aluminium screw caps
19/12/2013 - Latest update 26/10/2021
This data sheet provides test methods that enable evaluating the level of sealing obtained with an aluminium screw cap applied on a filled glass bottle. Different tests are proposed covering the various objectives for such a test, either for product development, for routine checks during ...
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FS17.00 - Opening torque for ROPP aluminium closures - Test method
01/01/2013 - Latest update 10/11/2023
This document describes the test method for evaluating the opening torque for roll-on pilfer proof (ROPP) aluminium closures on glass bottles.  
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FS18.00 - Recommendations for index marks on pet bottle closures and neck finishes
28/04/2014 - Latest update 09/02/2023
This recommendation fact sheet provides a description of the different options when including Index Marks on closures and neck finishes, with the constraints and points to consider. The Index Marks considered are geometrically defined features, either positive (e.g. lugs) or negative (e.g. ...
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FS19.00 - Flaconnage - Wall thickness - Precaution for use
14/04/2014 - Latest update 01/08/2017
This fact sheet gives recommended minimum glass wall thickness values for flaconnage products. It also describes other factors that need to be taken into account in specifications for mechanical strength.
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FS20.00 - Appropriate specification, bottle quality control and application control of self-adhesive labelling
12/03/2015 - Latest update 01/02/2020
This data sheet provides recommendations for the application of self-adhesive labels on glass bottles. It covers specifications of supplies and conditions of application. For further information on pressure sensitive labels and their application, see Cetie GUIDELINES N° 2.01 - ...
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FS21.00 - PET bottle - Under neck support
12/01/2016 - Latest update 28/09/2022
Draft abandonned
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FS22.00 - Measurement of labelling surface flatness of glass containers
01/02/2016 - Latest update 09/04/2020
This document provides recommendations for checking the flatness of the labelling area on glass containers. It applies to cylindrical or conical labelling surfaces on the body or neck. Note that other factors affect the appearance of the applied labels, especially the glue used and the ...
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FS23.00 - Plastic closure ovality guidelines
22/01/2018 - Latest update 18/11/2024
This document provides best practice guidelines for taking flat-top plastic closures and sport closures for beverage applications ovality into account in the capping process, including both preventive measures to limit ovalisation during transport, storage and handling, and means to improve the ...
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FS24.00 - Glass flaconnage for pharmaceutical products - Recommendations for use of ISO 11418 parts 1,2,3 & 4
15/05/2018
This document concerns the options which are to be selected by manufacturers and users from the following standards: ISO 11418 - Containers and accessories for pharmaceutical preparations - Part 1: Drop-Dispensing glass bottles ISO 11418 - Containers and accessories for pharmaceutical ...
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FS25.00 - Pilfer-proof finish - Definition and measurement of the neck finish height 'F'
29/07/2020 - Latest update 05/06/2025
This data sheet explains how the 'F' Dimension of a pilfer-proof (PP) neck finish should be defined and measured. It specifies clearly how the reference points of the measurement are defined, knowing that the lower point is a virtual point, not a physical point at the surface of the ...
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FS26.00 - Vertical mould seams on glass neck finish
12/10/2021 - Latest update 13/01/2023
This document reviews the factors which can influence the removal of particles from a screw cap upon opening.  
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FS26.01 - Surface conditions for glass finishes with outside sealing
30/01/2023 - Latest update 22/01/2024
This document aims to identify the factors that may cause the sealing surface to become rough and other factors that may affect the good sealing of the glass container. It concerns closure systems that ensure the sealing on the top or on the side of the glass finish.
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FS27.00 - Flaconnage decoration - Chinese new regulation CSAR
05/01/2023
The CSAR regulation (Cosmetic Supervision and Administration Regulation), came into force in 2021 and is made of 80 articles with which cosmetic products must comply. The main requirement of the CSAR regulation is to have legal text printed in Chinese on the container or a label stuck on the ...
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