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Water Quality Test

A comprehensive, professional water testing helps you safeguard the health and safety of your family.

Safety Standard

Promet

Accredited by the Hong Kong Laboratory Accreditation Scheme (HOKLAS)

Why Promet

Free Delivery

Service Package
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Water Quality Test

A comprehensive, professional water testing helps you safeguard the health and safety of your family.

Safety Standard

Promet

Accredited by the Hong Kong Laboratory Accreditation Scheme (HOKLAS)

Why Promet

Free Delivery

Service Package

Service Package

For Home
For Premises
Recommend

12+5 Comprehensive Home Package

$1,790 $2,010

Antimony(Sb), Arsenic(As), Barium(Ba), Boron(B), Cadmium(Cd), Chromium(Cr), Copper(Cu), Lead(Pb), Mercury(Hg), Nickel(Ni), Selenium(Se), Uranium(U), Colour, Conductivity, Free Chlorine, pH Value, Turbidity

view more

Quantity

6+5 Basic Home Package

$1,290 $1,410

Antimony(Sb), Cadmium(Cd), Chrominum(Cr), Copper(Cu), Lead(Pb), Nickel(Ni), Colour, Conductivity, Free Chlorine, pH Value, Turbidity

view more

Quantity

12 Heavy Metals HKDWS Test

$1,290

Antimony (Sb), Arsenic(As), Barium(Ba), Boron(B), Cadmium(Cd), Chromium(Cr), Copper(Cu), Lead(Pb), Mercury(Hg), Nickel(Ni), Selenium(Se), Uranium(U)

view more

Quantity

6 Heavy Metals Basic Test

$690

Antimony (Sb), Cadmium(Cd), Chromium(Cr), Copper(Cu), Lead(Pb), Nickel(Ni)

view more

Quantity

5 Physical & Chemical Parameters

$720

Colour, Conductivity, Free Chlorine, pH Value, Turbidity

view more

Quantity

Drinking Water Safety Test for Premises

Antimony(Sb), Cadmium(Cd), Chromium(Cr), Copper(Cu), Lead(Pb), Nickel(Ni), pH, Turbidity, Colour, Electricall Conductivity, Free Residual Chlorine, HPC, E. Coli

view more

Commissioning Test of Fresh Water Plumbing System

Antimony(Sb), Cadmium(Cd), Chromium(Cr), Copper(Cu), Lead(Pb), Nickel(Ni), pH, Turbidity, Colour, Electricall Conductivity, Free Residual Chlorine, HPC, E. Coli

view more

New Commissioning Test for Plumbing Works in Occupied Buildings / Village Houses

Antimony(Sb), Cadmium(Cd), Chromium(Cr), Copper(Cu), Lead(Pb), Nickel(Ni), pH, Turbidity, Colour, Electricall Conductivity, Free Residual Chlorine, HPC, E. Coli

view more
Recommend

12+5 Comprehensive Home Package

$1,790 $2,010

Antimony(Sb), Arsenic(As), Barium(Ba), Boron(B), Cadmium(Cd), Chromium(Cr), Copper(Cu), Lead(Pb), Mercury(Hg), Nickel(Ni), Selenium(Se), Uranium(U), Colour, Conductivity, Free Chlorine, pH Value, Turbidity

view more

Quantity

6+5 Basic Home Package

$1,290 $1,410

Antimony(Sb), Cadmium(Cd), Chrominum(Cr), Copper(Cu), Lead(Pb), Nickel(Ni), Colour, Conductivity, Free Chlorine, pH Value, Turbidity

view more

Quantity

12 Heavy Metals HKDWS Test

$1,290

Antimony (Sb), Arsenic(As), Barium(Ba), Boron(B), Cadmium(Cd), Chromium(Cr), Copper(Cu), Lead(Pb), Mercury(Hg), Nickel(Ni), Selenium(Se), Uranium(U)

view more

Quantity

6 Heavy Metals Basic Test

$690

Antimony (Sb), Cadmium(Cd), Chromium(Cr), Copper(Cu), Lead(Pb), Nickel(Ni)

view more

Quantity

5 Physical & Chemical Parameters

$720

Colour, Conductivity, Free Chlorine, pH Value, Turbidity

view more

Quantity

Drinking Water Safety Test for Premises

Antimony(Sb), Cadmium(Cd), Chromium(Cr), Copper(Cu), Lead(Pb), Nickel(Ni), pH, Turbidity, Colour, Electricall Conductivity, Free Residual Chlorine, HPC, E. Coli

view more

Commissioning Test of Fresh Water Plumbing System

Antimony(Sb), Cadmium(Cd), Chromium(Cr), Copper(Cu), Lead(Pb), Nickel(Ni), pH, Turbidity, Colour, Electricall Conductivity, Free Residual Chlorine, HPC, E. Coli

view more

New Commissioning Test for Plumbing Works in Occupied Buildings / Village Houses

Antimony(Sb), Cadmium(Cd), Chromium(Cr), Copper(Cu), Lead(Pb), Nickel(Ni), pH, Turbidity, Colour, Electricall Conductivity, Free Residual Chlorine, HPC, E. Coli

view more

How can I prepare the water sampling bottle?

You may prepare a glass or polyethene bottle (e.g. distilled water bottle). It is not recommended to use bottles of mineral water because the residuals will affect the test results. OR You may select "Yes, I need a water sample bottle(s)" in the order form if you need Promet to send a water sampling bottle to you. HK$50 will be charged for the 1st bottle. Additional HK$25 per bottle from the 2nd onward. It will be sent to you by courier. Fully rinsed before use.

How shall I pay?

You can make payment by the following ways:
a. Payment via PayPal
You can pay the payment via your PayPal account or credit card directly.
Submit the application form with email and we shall send you the Paypal payment request. Please remember to write payer’s name in the “Instruction to Seller” in PayPal before making a payment.
Keep the PayPal payment transaction number for future reference.
Pay through PayPal system, PayPal system does not charge additional fees for payers.
If you pay by credit card, the bank of credit card may charge a fee from the payer, please check with your bank for details.
Before you make a payment, please read carefully for the terms of use of PayPal system.

b. Payment via Internet FPS or Banking
Name of Beneficiary Bank: The Hong Kong and Shanghai Banking Corporation Limited (HSBC)
Bank Account Number: 808-451496-001
FPS ID: 163743594
Name of Beneficiary: Promet Metals Testing Laboratory Ltd.
Please upload the image of deposit slip, remittance advice or transaction record in our web form.


What kind of water can I test?

We only accept household water.

Safeguard your Beloved Ones

Just a few simple steps you can take samples and conduct professional drinking water quality test. Promet helps you protect the health and safety of your family!

Test Process

For Home
For Premises

6 Simple Steps to Collect Sample at Home

There is a lot that goes into actually ensuring the water we drink is safe and clean, including testing.

Test Process Img

Select your service package and complete the online order

Prepare a glass or polyethene bottle (e.g. distilled water bottle). It is not recommended to use bottles of mineral water because the residuals will affect the test results. Fully rinsed before use.

Take the first use 500ml water sample of the day.

Put a label with application number on the bottle (the application number will be mentioned in confirmation email of your order)

Promet arranges courier to collect sample(s) from you.

You will receive the test results within 7 working days by email.

Sampling Protocol for Premises

Promet carries out sampling according to the “Sampling Protocol for Commissioning Test of Fresh Water Plumbing System”, which can be applied to “New Commissioning Requirements for New Plumbing Works”, “New Commissioning Requirements for Plumbing Works in Occupied Buildings/Village Houses”, “Water Sampling and Solder Joint Sampling and Testing for Newly Installed Fresh Water Inside Service”, and “Quality Water Supply Scheme for Buildings- Fresh Water (Plus)” issued by Water Supplies Department.

Test Process Img

Our sampling specialists went through relevant and proper training and are familiar with the sampling procedures and handling of water samples, will ensure that the samples are representatives of water quality of the premises and free from contamination during the course of sampling, sample storage and transportation.

Our sample bottles are made of qualified plastic material with a capacity of 1-litre for metal tests, 500ml for chemical and physical tests and 250ml for bacteriological test. All sample bottles are prepared in accordance with the ISO standards.

Our specialist will collect water samples at the locations selected by WSD according to the steps outlined in the WSD Sampling Protocol, and record all information and observation.

All sample bottles will be labelled immediately, stored properly and delivered to the laboratory for testing as soon as possible.

For the Drinking Water Safety Test for Premises, Promet will send the test results by email as soon as they are ready, a printed report and certificate of compliance will be issued within a week after the completion of test.
As for Commissioning Test of Fresh Water Plumbing System and New Commissioning Test for Plumbing Works in Occupied Buildings/Village Houses, Promet will submit a complete report to the WSD within 5 days after collecting the samples.

What is the best time of the day shall I collect the water sample(s)?

We would recommend you collect the water sample(s) in the early morning. After a night of stagnation, if the water sample(s) collected at that time pass the requirements, the water quality throughout the day should be acceptable.

How often do I need to test water quality?

We would recommend to conduct a water quality test if you have never done that before. Afterwards, we would suggest a regular check every year. On the other hand, we would strongly recommend to conduct a test in the following circumstances:
- If you install a new pipe or faucet at home
- If you install a new water filtering system
- If your building installs new piping
- If you find any abnormality in your water colour, odour, taste or any presence of residuals

Safety Standards

Why do you need a Water Quality Test?

Health Risks of Heavy Metals

(Video available in Traditional Chinese version only)

View Video

Excessive exposure

Excessive exposure of heavy metals in drinking water can cause development delays, high blood pressure, organ damage, cancer, and other severe health effects.

Young exposure

The young are more prone to the toxic effects of heavy metals, as the rapidly developing body systems in the fetus, infants and young children are far more sensitive.

Childhood exposure

Childhood exposure to some metals can result in learning difficulties, memory impairment, damage to the nervous system, and behavioral problems such as aggressiveness and hyperactivity.

WHO Guidelines for
Drinking Water Quality

The Guidelines cover a broad range of chemicals that can affect drinking water quality but not all chemicals will be relevant within a country. To learn more about the list of chemicals, their guideline values and its hazards in drinking water, please click here.

Hong Kong Drinking Water
Standards (HKDWS)

The Government currently adopts the corresponding guideline values / provisional guidline values in the 4th edition of the WHO's Guidelines published in 2011 as the Hong Kong Drinking Water Standards. Details can be found here. Promet’s report is based on HKDWS criteria, compare if the Hong Kong households water meet the specifications.

HKDWS Parameters of Heavy Metals

HKDWS Physical and Chemical Parameters

Sb

Antimony

As

Arsenic

Ba

Barium

B

Boron

Cd

Cadmium

Cr

Chromium

Potential Health Hazards

Antimony trioxide is possibly carcinogenic to humans.

Acceptance Criteria (in μg/L)

≤ 20

Cu

Copper

Pb

Lead

Hg

Mercury

Ni

Nickel

Se

Selenium

U

Uranium

pH

Electrical
Conductivity

Colour

Turbidity

Free Residual
Chlorine

pH is a measure of how acidic/basic water. pH ranges from 0 to 14, with 7 being neural. pH of less than 7 indicates acidity, whereas a pH greater than 7 indicates a base solution. Pure water is neutral, with a pH close to 7.0 at 25°C. Normal rainfall has a pH of approximately 5.6 (slightly acidic) owing to atmospheric carbon dioxide gas. Safe ranges of pH for drinking water are from 6.5 to 8.5 for domestic use.

A high pH makes the taste bitter and decreases the effectiveness of the chlorine disinfection. Low-pH water will corrode or dissolve metals and other substances.

Acceptance Criteria (in μg/L)

≥ 6.5 and ≤ 9.2 (at 25°C)

HKDWS Physical and Chemical Parameters
HKDWS Parameters of Heavy Metals

Source: Health Hazards information from World Health Organization

HKDWS Parameters of Heavy Metals

Sb

Antimony

As

Arsenic

Ba

Barium

B

Boron

Cd

Cadmium

Cr

Chromium

Cu

Copper

Pb

Lead

Hg

Mercury

Ni

Nickel

Se

Selenium

U

Uranium

Source: Health Hazards information from World Health Organization

HKDWS Physical and Chemical Parameters

pH

Electrical
Conductivity

Colour

Turbidity

Free Residual
Chlorine

How to see my result “Pass” or “Fail”?

The test result will be compared with Hong Kong Drinking Water Standards (HKDWS) acceptance level.

Why Promet

  • Water Supplies

    Accredited by Water Supplies Department

  • Efficient Service

    Efficient Service by Professional Team

  • Quality Assurance

    Quality Assurance

  • Professional Team

    General Enquiry: +852 3965 0890

Img 0570 401x263

Promet provided a free water quality test the educational community in order to safeguard the wellbeing of our children, teachers and administrative staff.

Potential Health Hazards

Antimony trioxide is possibly carcinogenic to humans.

Acceptance Criteria (in μg/L)

≤ 20

Potential Health Hazards

Long-term exposure to arsenic in drinking-water is causally related to increased risks of cancer in the skin, lungs, bladder and kidney, as well as other skin changes, such as hyperkeratosis and pigmentation changes.

Acceptance Criteria (in μg/L)

≤ 10

Potential Health Hazards

Barium has been shown to cause nephropathy in laboratory animals.

Acceptance Criteria (in μg/L)

≤ 700

Potential Health Hazards

Short- and long-term oral exposures to boric acid or borax in laboratory animals have demonstrated that the male reproductive tract is a consistent target of toxicity.

Acceptance Criteria (in μg/L)

≤ 2400

Potential Health Hazards

Classified as probably carcinogenic to humans, cadmium accumulates primarily in the kidneys and has a long biological half-life in humans of 10 to 35 years.

Acceptance Criteria (in μg/L)

≤ 3

Potential Health Hazards

It is classified as human carcinogen.

Acceptance Criteria (in μg/L)

≤ 50

Potential Health Hazards

At high concentration level, copper imparts an undesirable bitter taste to water and may impact the colour of water. Copper contaminated drinking water brings gastrointestinal effects.

Acceptance Criteria (in μg/L)

≤ 2000

Potential Health Hazards

Exposure to lead is associated with a wide range of effects, including various neurodevelopmental effects, mortality (mainly due to cardiovascular diseases), impaired renal function, hypertension, impaired fertility and adverse pregnancy outcomes.

Acceptance Criteria (in μg/L)

≤ 10

Potential Health Hazards

The toxic effects are seen primarily in haemorrhagic gastritis and colitis; the ultimate damage is to the kidney.

Acceptance Criteria (in μg/L)

≤ 6

Potential Health Hazards

Metallic nickel is possibly carcinogenic. In an animal study with administered nickel, the integrity and performance of male and female reproductive systems, growth and development of offspring and post-implantation/perinatal lethality are found.

Acceptance Criteria (in μg/L)

≤ 70

Potential Health Hazards

Symptoms in people with excessive selenium included gastrointestinal disturbances, discolouration of the skin, decayed teeth, hair or nail loss, nail abnormalities and changes in peripheral nerves.

Acceptance Criteria (in μg/L)

≤ 40

Potential Health Hazards

Nephritis is the primary chemically induced effect of uranium in humans.

Acceptance Criteria (in μg/L)

≤ 30

pH is a measure of how acidic/basic water. pH ranges from 0 to 14, with 7 being neural. pH of less than 7 indicates acidity, whereas a pH greater than 7 indicates a base solution. Pure water is neutral, with a pH close to 7.0 at 25°C. Normal rainfall has a pH of approximately 5.6 (slightly acidic) owing to atmospheric carbon dioxide gas. Safe ranges of pH for drinking water are from 6.5 to 8.5 for domestic use.

A high pH makes the taste bitter and decreases the effectiveness of the chlorine disinfection. Low-pH water will corrode or dissolve metals and other substances.

Acceptance Criteria (in μg/L)

≥ 6.5 and ≤ 9.2 (at 25°C)

EC is a measure of the ability of a solution to carry or conduct an electrical current. Conductivity in water is affected by the presence of inorganic dissolved solids such as chloride, nitrate, sulfate, and phosphate anions (ions that carry a negative charge) or sodium, magnesium, calcium, iron, and aluminum cations (ions that carry a positive charge).

Acceptance Criteria (in μg/L)

≤ 300 μS/cm (at 25°C)

Colour is graded on scale of 0 (clear) to 70 Hazen unit (HU). Pure water is colourless, which is equivalent to 0 Hazen unit.

Acceptance Criteria (in μg/L)

≤ 5 HU

Turbidity is a measure of the ability of light to pass through water. The particulates can provide hiding places for harmful microorganisms and thereby shield them from the disinfection process. Suspended particles provide adsorption media for heavy metals such as mercury, chromium, lead, cadmium, and many hazardous organic pollutants.

Turbidity more than 5 NTU can be visible to the average person while turbidity in muddy water, it exceeds 100 NTU.

Acceptance Criteria (in μg/L)

≤ 3.0 NTU

Chlorine (Cl₂) does not occur naturally in water but is added to water and wastewater for disinfection. While chlorine itself is a toxic gas, in dilute aqueous solution, it is not harmful to human health. In drinking water, a residual of about 0.2 mg/L is optimal. The residual concentration which is maintained in the water distribution system ensures good sanitary quality of water.

Acceptance Criteria (in μg/L)

> 0 and ≤ 1.5 mg/L