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Chlorine, Hardness & pH Water Quality Analysis Test Kit
Watersafe Chlorine, Hardness & pH Water Quality Analysis Test Kit
Contaminants Tested
- pH
- A measurement of the degree
of how acid or alkaline the water supply is based on a pH scale of 0 -
14. A pH reading of 7.0 is considered neutral and neither acid or
alkaline. Numbers below 7.0 are considered acidic, numbers above 7.0 are
considered alkaline. Each full number change in the pH scale up or down represents a
10 fold increase in degree of acidity or alkalinity. For example, a pH
reading of 4.0 is 10 times more acidic than a reading of 5.0 and 100 times
more acidic than a reading of 6.0. There can be many causes for acidic
water including acid rain (high carbon dioxide), acid source
water from absorbing atmospheric carbon dioxide and from
decaying vegetation and no acid buffering characteristics in the
water. Alkaline waters can be caused by unwanted substances such
as alkali or ammonia from nitrate fertilizer finding its way
into your water and excessive carbonates. pH is a non-mandatory
secondary water quality standard and guidelines are provided to
assist in managing drinking water for aesthetic considerations
such as taste, color and odor as well as for corrosion control.
Aesthetic
Effects - Excessive levels of alkalinity can produce a
"soda" taste and have a drying effect on the skin because of the
tendency to remove normal skin oils. Water that is acidic or very
alkaline will tend to be corrosive. This corrosive water will begin
to dissolve metals such as lead, copper, brass and zinc in the
plumbing lines and carry them in the water to the faucet or water
appliance such as washing machines, water heaters and plumbing
fixtures.
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- EPA
Recommended Contaminant Level
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- Secondary Maximum
Contaminant Level
(SMCL) - pH 6.5 to 8.5.
- Chlorine
- Chlorine is used an
an oxidizing agent to change the chemical composition of targeted substances. It is helpful in the removal of Iron,
Manganese and Hydrogen Sulfide from water and it is also used to
disinfect water and kill microorganisms. Chlorine is added in
municipal water treatment and may also be used on a small scale
in residential water treatment systems. Chlorine added to the
water will first react with Iron, Manganese and Hydrogen Sulfide
through the oxidation process and then some of the Chlorine will
be neutralized by any organic matter and bacteria present in the
water, this is the "Chlorine Demand". The remaining Chlorine
present in the water is called "Residual Chlorine". If any
Ammonia is present in the water, Residual Chlorine will react
with it to form Chloramines. If no Ammonia is present, the
remaining Chlorine is called "Free Chlorine". "Total Chlorine"
is the combination of the Residual Chlorine that has formed
Chloramines and Free Chlorine levels. Today, most municipalities
are turning to the application of Chloramine, a compound of
chlorine and ammonia, instead of Chlorine products to help
reduce the amount of disinfection byproducts. However, this
treatment method still leaves "Free" Chlorine present in water.
Health
Effects - Chlorine can react with organic matter in the
water, such as from vegetation decay, and form disinfection
byproducts called Trihalomethanes (THM's). THM's are suspected
human carcinogens. Chlorine may also create objectionable taste
and odor problems in water. Chlorine can be irritating to the
skin upon contact as well as an eye, nose and lung irritant when
exposure to the air is encountered. Ingestion of Chlorine can
cause stomach discomfort.
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- EPA
Recommended Contaminant Level
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- Maximum Residual
Disinfectant Level Goal (MRDLG) - 4.0 milligrams per
liter (mg/L) or 4 parts per million.
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- Maximum Residual
Disinfectant Level (MRDL) - 4.0 milligrams per liter
(mg/L) or 4 parts per million.
- Hardness
- A US Geological
Survey indicates hard water is found in over 85% of the United
States. Hardness is a common water quality problem that relates
to the amount of dissolved minerals present in water. As water
travels through the ground, rock and soil, it picks up minerals
along the way. The primary mineral substances that are
associated with water hardness are calcium and magnesium. These
minerals are not found in nature in their elemental form but
found in water principally as chlorides,
sulfates, carbonates and bicarbonates.
Aesthetic
Effects - Hardness reduces a soap or detergent's ability
to clean and lather by causing the development of insoluble
precipitation in water. This is the soap scum seen in the
shower, toilets and on tubs as well as whitish scale deposits in
pipes, water heaters and coffee makers. Water hardness makes
washing clothes, bathing and shampooing more difficult and less
effective. More soap will be required in hard water to have the
same effectiveness as in soft water. Hardness will also cause
scale buildup on water lines and in appliances such as water
heaters. It can cause the reduction in water flow through pipes
and make heating appliances less effective and more costly to
run due to the poor heat transmission through the scale buildup.
- WQA
Hardness Standards
- No EPA standards
exist for the municipal control of water hardness.
The Water Quality Association (WQA) has established
hardness standards. The measurement for water
hardness is either in grains per gallon (gpg) or milligrams per liter (mg/L)/parts per million (ppm).
|
Hardness
Level |
gpg |
mg/L or
ppm |
| Soft |
less than 1.0 |
less than 17.1 |
| Slightly
Hard |
1.0 to 3.5 |
17.1 to 60 |
| Moderately Hard |
3.5 to 7.0 |
60 to 120 |
| Hard |
7.0 to 10.5 |
120 to 180 |
| Very Hard |
10.5 and above |
180 and above |
Definitions
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Maximum
Residual Disinfectant Level Goal (MRDLG) - The
level of a drinking water disinfectant below which there is no known or
expected risk to health. MRDLGs do not reflect the benefits of the use
of disinfectants to control microbial contaminants.
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Maximum
Residual Disinfectant Level (MRDL) - The highest
level of a disinfectant allowed in drinking water. There is convincing
evidence that addition of a disinfectant is necessary for control of
microbial contaminants.
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Secondary Maximum Contaminant Level (SMCL) -
Non-mandatory water quality standards for 15 contaminants. EPA does not
enforce these "secondary maximum contaminant levels" or "SMCLs." They
are established only as guidelines to assist public water systems in
managing their drinking water for aesthetic considerations, such as
taste, color and odor. These contaminants are not considered to present
a risk to human health at the SMCL.
Testing
Procedure
Important
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Keep tests out of reach of children and pets. Do not ingest
anything from this test kit. Do not drink water sample used for
testing. Store and use at room temperature (60-86 F).
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Do
not open packets or a vial until you are ready to perform the
tests.
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Do
not touch test pads.
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Do
not use on hot water or water containing bleach detergents.
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Do
not re-use any part of the test kit.
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Read and follow all instructions carefully.
Instructions
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Carefully open pH/ Hardness/ Chlorine Test
packet and take out test strip.
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Immerse the regent pads into the water sample
and remove immediately.
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Hold the strip level for 15 seconds.
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Match pH, Hardness and Total Chlorine Pads
(in that order) with provided
color chart in kit.
Results
pH (end pad)
Total Hardness (middle pad)
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0 ppm |
50 ppm |
120 ppm |
250 ppm |
425 ppm |
Total Chlorine (pad nearest
handle)
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0 ppm |
2.0 ppm |
4.0 ppm |
10 ppm |
Specifications
Features
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Easy to use kit provides a convenient way to check your water
for the disinfectant chlorine, EPA Secondary Drinking Water
Regulation pH and hardness levels.
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Do-it-yourself
test strips. Everything needed to perform and analyze the test are included.
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The test
is
fast and provides you with results right at home in 15 seconds.
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Clear directions, easy methods and top
quality non-toxic test ingredients assure you of reliable
test results.
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EPA-based,
laboratory certified test kit includes:
- 1 - pH Test
- 1 - Chlorine Test
- 1 - Hardness Test
- Watersafe
Chlorine, Hardness & pH in Water Test
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Price: $9.95
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