Standard for Cells and Batteries Undergoes Revision

Tanzania Bureau of Standards is overseeing the revision of the Tanzania Standard for primary batteries.

The Cells and Batteries Technical Committee met recently under the chairmanship of Engineer Simon Kabingo from the Dar es Salaam Institute of Technology (DIT), to discuss the proposed changes to the standard as presented by its Secretary, Mr. Liberatus Kalinga, a Standards Officer from the Electrical Engineering Section at TBS

The Committee noted that the implementation of the standard, TZS 143 (Part 1): 2009, Primary batteries – Part 1: General, was faced by various challenges which needed to be worked upon to ensure that the standard doesn’t constitute a technical barrier to trade.

According to members of the committee, the challenges include deduction of heavy metals like cadmium, mercury and lead in Table 3 of the standard which gives classification on standardized electrochemical system of batteries; and the exclusion of content limit of lead, which cause inconsistence in the standard.

During the meeting, members agreed that the Tanzania Standard should be revised so as to remove ambiguity and ensure trade facilitation.

The purpose of TZS 143 is to standardize primary batteries with respect to their electrochemical system, dimensions, nomenclature, terminal configurations, markings, test methods, typical performance, safety and environmental aspects.

According to the Head of the TBS Engineering Standards Department, Eng. Thomas Mnunguli, the objective of the standard is to benefit primary battery users, device designers and battery manufacturers by ensuring that batteries from different manufacturers are interchangeable according to standard form, fit and function.

“To ensure compliance with the objective, the standard specifies performance specifications and test methods for testing primary cells and batteries. Manufacturers as well as importers of primary cells and batteries are required to comply with TZS 143,” asserts Eng. Mnunguli, adding that the standard includes, among other requirements, marking the batteries with a crossed bin symbol denoting the method of disposal.

According to the TC Secretary, Mr. Kalinga, the standard will now be forwarded to the Electrical Engineering Divisional Standards Committee for further deliberation.

Members of the Cells and Batteries Technical Committee are drawn from Panasonic Batteries (T) Co. Ltd., University of Dar es Salaam (UDSM) and Dar es Salaam Institute of Technology (DIT).

Other members of the Cells and Batteries Technical Committee are Tanzania Telecommunications Company Limited, Yuasa Batteries (EA) Co. Ltd. and Chloride Exide (T) Ltd., while TBS serves as the secretariat.