ISBT sports closure rotational test simulates biting or pulling on the spout

  • Mecmesin

Specification
The International Society of Beverage Technologists (ISBT) publish voluntary codes of practice for the technical and scientific aspects of soft drinks and beverages. Their packaging guidelines include Sports Closures: Voluntary Standard Performance Specifications and Test Methods; indicating test procedures for the unique push/pull or twist-to-open spout closure design used on mineral water and sports drinks caps.

The purpose of the Section 2.2 Rotational Test is to simulate a person biting or pulling on the spout of the closure to determine if the spout or any part will break, split or detach which could cause a potential choking hazard. The rotational force needed to remove the spout from the closure body is measured and compared to the acceptable minimum value of 5 N.

Solution
The ISBT sports closure rotational test stipulates the test equipment needed to perform the procedure; a tensile tester to apply load and measure the break force, a force gauge to measure the clamping force, and the specific bite clamp and rotational test fixture to grip the preform and spout. The Steinfurth Rotation Tester for Sports Closures (RSTC) includes all of the required elements to test an industry standard beverage bottle preform with closure. The RSTC includes a rotational wheel fixture that transfers the constant 300 mm/min axial motion of the Mecmesin test stand's crosshead into the combined rotational / pull-off force typical of how a person opens the spout. An initial pre-load of 50 N is applied to the bite-clamp mechanism, measured by a loadcell connected to a Mecmesin AFTI force gauge. EmperorTM software graphically plots the force characteristics and records the break load comparing it to the performance specification of the ISBT standard to establish a pass/fail result.

System
- MultiTest 2.5-i computer-controlled test stand with 50 N ILC intelligent loadcell and EmperorTM Force testing software.
- AFTI Advanced Digital Force and Torque Indicator with Smart 100 N S-Beam loadcell.
- Steinfurth Rotational Tester for Sports Closures.

See also

Cosmetic packaging pull-off test

Cosmetic packaging pull-off test

A bench-top testing system was required to repeatably test the pull-off force on a variety of cosmetic containers. The system needed to allow a relatively high volume of containers to be tested with the minimum level of training required for users. Mecmesin's solution avoided the risk of damaging the loadcell by excessive torque on tightening the collet grip, and the lipstick barrel was first inserted in the grip and then connected to the gauge by a flexible chain-link.

Ice cream container lid closing effort

Ice cream container lid closing effort

Food packaging made from thermoformed plastics and intended for freezing, requires testing to ensure optimum functionality when closing and sealing the container. The closing effort of the lid is measured by using a motorised force tester controlled by software together with a custom-designed fixture to hold standard-sized ice cream tubs. In addition the ‘top-load’ crush strength of the container itself can also be tested on the same machine to guarantee it is rigid enough to avoid buckling and spillage when the lid is applied.

Mecmesin develops Combi Cork-i Extraction Tester for leading Scottish whisky

Mecmesin develops Combi Cork-i Extraction Tester for leading Scottish whisky

To improve the quality and storage of a premium product, the R&D team at a leading Scottish whisky maker needed to optimise the design of their bottle stoppers. They decided that the strength and performance of their reusable stoppers could be ensured by systematic testing of the characteristics of both portions of the stoppers. Working closely with the R&D team, Mecmesin developed the Combi Cork-i Extraction Tester, an innovative multi-function cork extraction testing system that tests both phases of de-corking synchronously.

Greek beauty product manufacturer guarantees production quality by updating to Mecmesins digital torque testers

Greek beauty product manufacturer guarantees production quality by updating to Mecmesin's digital torque testers

A manufacturer of a wide range of skin, hair-care, make-up and sun-care products based in Greece needed to replace their outdated torque testers with up-to-date digital torque testers to guarantee production quality and to ensure their products remained sealed. Mecmesin supplied the company with two Tornado 10N.m digital torque testers, which have the ability to test tamper-evident closures, an intrinsic part of their specification.

  • Mike Webber
  • Product Info
  • English
  • Created 08 May 2018
  • Modified 29 Aug 2019
  • Hits 868