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Glass Quality Assessment

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The quality and performance of a product once in market is a reflection of the brand, and supplier's, identity - should that product not be fit-for-purpose, cause injury, or not perform to expected standards then the effect on the brand, its public image and potential costs are obvious. We provide a range of services from the assessment of individual properties and physical and mechanical testing to full quality assessment suites and the verification of set industry or international standards.

Visual Quality Assessment

Examination to identify design features, visible defects or imperfections within/on the glass and mechanical damage that might affect performance during use.

Fitness-for-Purpose Assessment

Providing quality assessment of a wide range of glass products for performance and mechanical strength against specific standards, customer requirements or GTS recommendations.

Container Glass Services

Quality assessment to a range of container specific industry standard tests such as those outlined in TEC 7 and TEC 9 to verify the quality and performance of glass packaging for i…

Pharmacopoeia

Pharmacopoeia testing for all Type I, II and III glass packaging (containers, bottles, vials, ampoules) and parenteral delivery vessels for use across the pharmaceutical and medica…

Annealing Assessment

Our annealing assessment assesses the quality of the annealing process for glass containers, domestic glassware and other glass products, in order to ensure the quality of the end …

Toughening Assessment

Visual examination of stress pattern using polarised light along with scratch and fragmentation testing to determine the effectiveness of the heat strengthening process.

Cased Glass Assessment

Quality assessment conducted where two (or more) glasses are fused together to form a final product, for example wine glasses with coloured bowl/stem, or coloured glass or enamel d…

Glass Thickness and Distributi…

Measurements of glass thickness on an article at given areas. This can be compared to a product specification or industry guidelines.

Dimensional Examination

This service measures, and can verify, the dimensional specifications of a product to customer requirements and a range of methods can be used.

Capacity & Headspace

Capacity and headspace - also referred to as 'Vacuity' - assessment calculates the volume of liquid held by the container and the volume of space left at the top of the packaging.

Coatings Assessment

Assessment of surface protection can be carried out by use of slip tables and AGR hot-end coating technology. The longevity of the coating performance can be assessed using our AGR…

Closure and Leakage Assessment

Our experts have extensive experience in physical and mechanical testing and quality assessment of glass container packaging;this extends to neck finish specifications and the corr…

Design Critique and FEA

Assessment and critique of a product design at early design, trial or production stage in order to advise on performance and strength. This service focuses on assessment of design …

Candles and Votives Testing

Fitness-for-purpose assessment of glass containers intended for use as candle holders, or ‘votives’, in order to demonstrate proper due diligence when placing products upon the…

Ballotini (Road Marking Materi…

Suite of testing for ballotini, road marking materials and pre-mixed glass beads to EN 1423 and EN 1424.


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Case Studies & Projects

Failure Analysis - Wine Bottle

Failure Analysis - Wine Bottle

The remains of a broken wine bottle were received by Glass Technology Services Ltd and the customer, a prominent UK brand, requested to know the reason...

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Foreign Bodies found within Drinks Bottles

Foreign Bodies found within Drinks Bottles

A number of glass fragments had been reported to be present within two bottles; the brand owner had checked the densities of the fragments and bottles...

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Foreign Body Analysis - Cosmetics and Beauty

Foreign Body Analysis - Cosmetics and Beauty

A salon brand received a serious injury complaint from a consumer where it was reported that glass had been found within an anti-aging cream. Concerned...

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Failure Investigation - Cafetiere (French Press)

Failure Investigation - Cafetiere (French Pre...

A well-known cookware brand received a customer complaint that a glass cafetiere ('French Press') "exploded" whilst full of hot liquid...

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Quality Assessment - Retail

Quality Assessment - Retail

A high street name requested routine quality assessment of a new product line, as a case of due diligence. How did GTS help? During the quality assessment,...

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