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2. SAE 904L stainless steel - Wikipedia

   en.wikipedia.org/wiki/SAE_904L_stainless_steel

   904L is an austenitic stainless steel.It is softer than 316L, [1] [2] and its molybdenum addition gives it superior resistance to localized attack (pitting and crevice corrosion) by chlorides and greater resistance reducing acids; in particular, its copper addition gives it useful corrosion resistance to all concentrations of sulfuric acid.

3. Pitting resistance equivalent number - Wikipedia

   en.wikipedia.org/wiki/Pitting_Resistance...

   In general: the higher PREN-value, the more resistant is the stainless steel to localized pitting corrosion by chloride. PREN is frequently specified when stainless steels will be exposed to seawater or other high chloride solutions. In some instances stainless steels with PREN-values > 32 may provide useful resistance to pitting corrosion in ...

4. Water dispenser - Wikipedia

   en.wikipedia.org/wiki/Water_dispenser

   Bottled water dispensers can be top-mounted or bottom-loaded, depending on the design of the model. Bottled water dispensers typically use 11- or 22-liter (5- or 10-gallon) dispensers commonly found on top of the unit. Pressure coolers are a subcategory of water dispensers encompassing drinking water fountains and direct-piping water dispensers ...

5. SAE 304 stainless steel - Wikipedia

   en.wikipedia.org/wiki/SAE_304_stainless_steel

   For more severe corrosion conditions, when 304 stainless steel is too sensitive to pitting or crevice corrosion by chlorides or general corrosion in acidic applications, it is commonly replaced by 316 stainless steel. 304 and 302 stainless steels are subject to chloride stress fracture failure when used in tropical salt water conditions such as ...

6. Drinking water quality standards - Wikipedia

   en.wikipedia.org/wiki/Drinking_water_quality...

   Drinking water quality standards describes the quality parameters set for drinking water. Water may contain many harmful constituents, yet there are no universally recognized and accepted international standards for drinking water. Even where standards do exist, the permitted concentration of individual constituents may vary by as much as ten ...

7. Biden administration sets first national standard to limit ...

   www.aol.com/biden-administration-sets-first...

   The Biden administration finalized the first national standard to limit dangerous “forever chemicals” found in nearly half of the drinking water in the United States. Some environmentalists ...