Bangladesh BSTI Certification Survey

I need concise, well-sourced answers on whether specific industrial electronics—UPS (HS 850440), Digital Multimeter (HS 903033), Analyzer (HS 902780), Battery Pack (HS 85065), Cable Assembly (HS 8544), Recorder (HS 903289)—and the accessories shipped with them (AA/AAA batteries, button batteries, and cables) trigger mandatory certification under the BSTI Standards & Testing Institution Act 2018. Because these items feed directly into a manufacturing supply chain here in Bangladesh, the findings must focus on local compliance only.

We are looking for someone who can conduct a simple survey.

Specifically, please investigate whether the following six products and three accessories (shipped together with the products) are subject to mandatory certification under Bangladesh's BSTI Standards & Testing Institution Act 2018, who is responsible if they are subject to certification, and whether the certification mark is required for import and sale.

 UPS (Uninterruptible Power System) (HS code: 850440)
 Degital Maltimeter (HS code: 903033)
 Analyzer (HS code: 902780)
 Battery Pack (HS code: 85065)
 Cable Assembly (HS code: 8544)
 Recorder (HS code: 903289)

Accessories
 AA/AAA Batteries
 Button Battery
 Cables


Please include the information supporting your decision (such as website information or information from authorities you interviewed) in your survey results.

Please fill in the survey results in the Excel sheet that will be sent separately.