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Results 1 - 20 of 1,970 for "hard water" within all areas of EPA.

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Hard Water  Alkaline water containing dissolved salts that interfere with some industrial processes and prevent soap from lathering. Water may be considered hard if it has a hardness greater than the typical hardness of water from the region. Some textbooks define hard water as water with a hardness of more than 100 mgAL as calcium carbonate. -  From Drinking Water Technical & Legal Terms
  - Search all glossaries for terms containing hard water

US EPA - Standard Operating Procedure for Preparation of ...2014-01-07
... Meade, MD Standard Operating Procedure for Preparation of hard water and
other diluents for antimicrobial products SOP Number: MB-30-00 ...
US EPA - OECD Quantitative Method for Evaluating ...2013-10-25
... Preparation. f. Test substance diluent. The test substance diluent is 375
ppm hard water (unless otherwise specified). Adjust ...
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US EPA, Pesticide Product Label, ACCEL (CONCENTRATE) ...2013-08-01
... of product per gallon of water), in the presence of 200 ppm hard water, 5%
serum load and 5 minute contact time, unless otherwise noted, this ...
US EPA, Pesticide Product Label, YYY DISINFECTANT, 07/17 ...2014-08-25
... DEODORIZER Meets QSHA's Bloodborne Pathogens Act requirement Used
as directed, YYY DISINFECTANT is effective in hard water (up to 400 ...
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Water Softeners | WaterSense | US EPA2014-07-24
brief description of page
Sowing the Seeds for Healthy Waterways: How Your ...
Garden Documents
Land and Waste Management Research | US EPA
The Science Inventory is a searchable database of research products primarily from EPA's Office of Research and Development. Science Inventory records provide descriptions of the product, contact information, and links to available printed material or websites.
Abstract for SETAC North America 32nd annual meeting ...
... waters have been used to conduct chronic (>14-d) water-only or sediment
toxicity tests; including ASTM reconstituted hard water (with no addition ...
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When It Comes to Water, We Are All Close Neighbors ...
... manganese that it's undrinkable. The hard water build-up or “scale”
also ruins hot water heaters. We have learned that ...
Current Winter 2011 | WaterSense | US EPA2014-07-24
brief description of page
Comments on the November 2010 Notification of Intent for ...2013-02-07
... Soft water better for skin (UK Study- ongoing) • Aesthetic and health based
effects – Costs and benefits in very hard water environments Page 11. ...
Notification of Intent to Develop Draft Efficiency and ...2013-02-07
... Cation exchange water softeners are used to soften water by exchanging the
calcium and magnesium ions contained in hard water with sodium (or ...
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Page 242 - WaterSense at Work2013-04-08
... Potable water used during other wash or rinse stages might. be treated with
a water softener to remove hard water, which can cause scale buildup. ...
Actions You Can Take To Reduce Lead In Drinking Water ...
Actions You Can Take To Reduce Lead In Drinking Water
Toxicity Test Report Dated August 13, 1998 (Revised 1/22/99)2014-08-05
... Test Solution Aeration None Dilution Water Moderately Hard Water + Selenium
Endpoint Survival and Mean Dry Weight Test Acceptability ...
EPA and MDEQ Wrap Up 2014 Cleanup in Residential Area2014-10-16
... St. Louis residents can expect much higher water quality since metals, such
as manganese, that cause hard water will be removed. ...
Water | Region 2 | US EPA2010-10-05
... hard). Seven of the ten sampling sites had very hard water, two had
hard water, and one had moderately hard water. Iron ...
Water Savings on Tap for Fix a Leak Week 2013 | Healthy ...
... Hard water softeners should also be, so that water using appliances can work
properly and there will be less problems of corrosion or leaks. ...
Supplemental Recommendations | Pesticides | US EPA2012-04-06
... HARD WATER. The Recommended Methods may be modified to demonstrate
the effectiveness of an antimicrobial agent in hard water. ...
One in a Million | Superfund | US EPA2011-07-11
... Water with a high percentage of such dissolved mineral salts is called
hard water. Hard water has a pH greater than 7 and ...

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