Tanzania Bureau of Standards (TBS)

Draft Standards for Public Comments

• EDC 2 (239) DTZS-IEC 60137, Insulated bushings for alternating voltages above 1000 V
• EDC 2 (236) DTZS-IEC 60364-5-54, Low-voltage electrical installations - Part 5-54 Selection and erection of electrical equipment - Earthing arrangements and
• comments_form_April_2021
• Stakeholders' comments letter
• stakeholders commenting form
• Inviation for Comments--Construction Sector
• DTZS 719 Specification for Bottom-Pouring Refractories Steel Plants
• DTZS 718 Methods of Testing Refractory Castables
• DTZS 717 Materials for the production of primary aluminium - Dense refractory bricks-determination cryolite resistance
• DTZS 716 Insulating Bricks- Specification
• DTZS 715 High Heat Duty Fireclay Refractories- Specification
• DTZS 707 Polyethylene–Based Structural Grade Plastic Lumber – For outdoor Applications - Specification
• DTZS 706 PRODUCTS USED FOR TREATMENT OF WATER INTENDED FOR
• DTZS 702 Specification for Road Humps and Rumble Strips