The maximum permissible chloride content in water for domestic supplies should not exceed -

অন্যান্য
অন্যান্য

প্রশ্নঃ The maximum permissible chloride content in water for domestic supplies should not exceed -

  • ক. 250 ppm
  • খ. 350 ppm
  • গ. 450 ppm
  • ঘ. 550 ppm

সঠিক উত্তরঃ

250 ppm
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