HK TianJun Water Treatment Energy Saving Technology Limited

Reverse osmosis plant display diagram

The Hong Kong Standards And Testing Centre Ltd (STC)

For consumers to make more informed choices regarding water efficiency when purchasing household appliances the Water Supplies Department (WSD) of the Hong Kong government has made it mandatory for water supply piping and water fitting products under specified categories (Annex to Form WWO 46) to obtainGeneral Acceptance (GA) certification before products could be placed on the market.  At STC, we provide one-stop tapware and WC testing services that includes testing and submission of GA certification applications and Water Efficiency Labeling Scheme (WELS).  Tapware &amp; WC Testing services General Acceptance (GA) LetterWater Efficiency Labeling Scheme (WELS)Sanitary Tapware (BS EN 200)WC Pans &amp; WC Suites (BS EN 997)To know more or enquire any specific service, please visit https://www.stc.group and fill in our enquiry form on https: www.stc.group/contact.   

Tapware and WC Testing

Assisi International Co Ltd

Plasma Air Purifying Technology Plasma tube has long life span up to 20,000 hours等离子管使用壽命長達 20,000 小時No/less consumables, in line with the "General Hygiene Requirements for Air Disinfection Machines" issued by the National Health Commission WS/T648-2019" requirements: The plasma air disinfection machine shall not be equipped with medium or high efficiency filters, and there is no need to replace consumables later. 無/少耗材 符合國家衛健委發布的《空氣消毒機通用衛生要求 WS/T648-2019》的要求:等離子空氣消毒機內部不得裝有中、高效 過濾器，後期無需更換耗材2-5W/hour/module tube 等離子管耗電量只有2-5W/小時Assuming that the PAU (fresh air blower) consumes 200W per hour, installing our system can reduce the usage rate by 3%, that is, it can save 6W per hour and 25.92kW per year, which is equivalent to 2x 5-meter-high trees carbon absorption 假設PAU（（空氣處理機組））每小時耗電200W，安裝我們的系統可降低3%的使用率，即每小時可節省6W，每年可節省25.92kW，相當於2x 5米-高樹碳吸收

Plasma Air Purifying technology

Water is the essence of life and we place great emphasis on the quality of water through STC extensive water quality testing services. Acquiring HOKLAS accreditation for tap water, drinking water, cooling tower water testing and more, our environmental analysis team can identify chemical, physical and microbiological parameters with reference to WHO, BP and GB standards to ensure safety compliance.  Additionally, the emission of hazardous substances into the air such as volatile organic compounds (VOCs) and formaldehyde have also become an increasing concern for public health. STC’s experienced chemists and state-of-the-art VOCs chambers can access and detect even trace amounts of hazardous substances in building materials, furniture, and home decorations.  Our Environmental Surveillance &amp; Analysis services include: Drinking Water Heavy metal analysis(e.g. lead, cadmium, chromium, nickel, copper, antimony, etc.)WHO standards, WSD Circular LetterPurified water in containers(BP 2017, GB 5749, GB 8537, FDA, etc.)Water Filter Performance TestingRadioactivityGuidelines for Drinking Water Quality(2007 ed.)Purified Water Water for Analytical Laboratory Use(ISO 3696)Quality Water Supply Schemes for Buildings–Fresh Water (Plus) Chemical and Microbial testing(e.g. iron, colour, conductivity, pH value, turbidity; coliform organisms, E. coli)Heavy metals(e.g. lead, cadmium, chromium, nickel)Guidelines on Cleansing &amp; Disinfection of Fresh Water Inside Service Chemical testing(e.g. colour, conductivity, pH value, turbidity, free residual chlorine)Microbial testing(e.g. count of E. coli, heterotrophic plate count)Waste Water &amp; Cooling Tower Water Chemical analysis(e.g. BOD5, COD, Odor, Oil and grease content, SV30, etc.)Metal content(e.g. lead, cadmium, chromium, nickel)Microbial testing(e.g. coliform organisms, E. coli, fecal coliforms, Heterotrophic plate count, Legionellapneumophila, etc.)Air Quality Microbial quality testing(e.g. particle count, airborne bacteria, yeast and mould count, etc.)Volatile Organic Compounds VOCs(e.g. dichloromethane, methylethyl ketone (MEK), toluene, benzene, etc.)Formaldehyde Compliance(ASTM D5582, ASTM D6007, ASTM E1333, CARB/EPA TSCA Title VI, EN717-3, EN120)Plastic Testing Identification and Conditioning testingChemical analysis(e.g. bis-phenol A, PAHs, phthalates, etc.)Metal Testing Alloy Composition TestingCorrosion Testing(e.g. salt spray, etc.)Nickel ReleaseMetal ImpurityIf you have any further question, please feel free contact us or visit our website: https://www.stc.group/en/contact To know more or enquire any specific service, please visit https://www.stc.group and fill in our enquiry form on https: www.stc.group/contact. 

Environmental Analysis

Acquiring HOKLAS accreditation for tap water, drinking water, cooling tower water testing and more, STC environmental analysis team can identify chemical, physical and microbiological parameters with reference to WHO, BP and GB standards to ensure safety compliance.  Our Environmental Surveillance &amp; Analysis services include: Drinking WaterPurified WaterQuality Water Supply Schemes for Buildings–Fresh Water (Plus)Guidelines on Cleansing &amp; Disinfection of Fresh Water Inside ServiceWaste Water &amp; Cooling Tower WaterAir QualityPlastic TestingMetal TestingIf you have any further question, please feel free contact us or visit our website: https://www.stc.group/en/contact To know more or enquire any specific service, please visit https://www.stc.group and fill in our enquiry form on https: www.stc.group/contact. 

Environment Analysis

Sun Flame Co Ltd

We have workshop in Tokyo. We have been assembling Made in Japan watch. Also, we have some inspection testing. We can water proof test for 10BAR. 

Water resistant inspection

STC has been recognized by the China Quality Certification Center (CQC) (No. V-189) for providing professional and reliable testing services for household electronic appliances, including smart toilets. STC’s smart toilet testing services are in accordance with the latest domestic and international standards to assist manufactures in strengthening product competitiveness by meeting safety requirements and consumer performance expectations.   Our Smart Toilet Testing services include: Safety TestingPerformance TestingElectromagnetic Compatibility (EMC) TestingEnergy Efficiency TestingWater Efficiency TestingAntibacterial TestingTesting Standards Household &amp; Similar Electrical Appliances - Electronic Toilets: Energy Efficiency, Water Efficiency &amp; Antibacterial Certification Requirements(CQC64-448160-2018)Safety Requirements for Household Electrical Toilets and Similar Electrical Appliances(GB 4706.53-2008)Electronic Toilet Sanitation(GB/T 34549-2017)Electronic Toilet(GB/T 23131-2008)Safety of Household &amp; Similar Electrical Appliances - Part 2-84: Particular Requirements for Toilets(IEC 60335-2-84)Toilet Cleaning Water(JIS A 4422:2011)Toilet Bowl(JG/T 285-2010)Toilet Seat &amp; Cover(JC/T 764-2008)Smart Toilet(CBMF15-2016)Smart Toilet Seat (JD 0001-2017)If you have any further question, please feel free contact us or visit our website: https://www.stc.group/en/contactTo know more or enquire any specific service, please visit https://www.stc.group and fill in our enquiry form on https: www.stc.group/contact.  

Smart Toilet Testing

Keppel Seghers - Zhen Hua Joint Venture

Upgrading of the sewage treatment level from preliminary treatment to chemically enhanced primary treatment with disinfection; expansion of the treatment capacity to 200,000 cubic metre per day; construction of ancillary works including an administration building, a maintenance workshop, access roads and landscaping works. Upgrading the treatment level of San Wai sewage treatment works will help to reduce pollution loads to the North-western Waters; and expansion of the treatment capacity will be able to cater for additional flows due to population growth in Northwestern New Territories. Zhen Hua, being the local representative of China Harbour, via Group’s global network, has been contributing to the local infrastructure development for over 36 years.   改善污水處理水平，由基本處理提高至化學強化一級處理加消毒；把處理量擴充至200,000 立方米；建造附屬工程包括行政大樓、工場、通道及環境美化工程。工程項目將改善新圍污水處理廠的處理水平以減少西北水域所承受的污染量並增加該廠的處理量，以處理新界西北區人口增長帶來的額外污水量。 香港振華在過去36年來一直致力於當地的基礎設施建設。作為中國港灣的香港代表及中國交通建設集團的一員, 振華透過集團的全球性網絡及國家一帶一路政策所帶來的機遇, 在環保相關領域積極發展。 

San Wai Sewage Treatment Works, Phase 1

CMA Testing & Certification Laboratories Limited

We support your environmental testing needs including but not limited to followings aspects:  Air      • Indoor Air Quality Measurement       • Indoor Air Quality (IAQ) Certification Scheme •Stack emission measurement  Water • Drinking Water Analysis              • Waste Water Sampling Collection• Legionnella and Analysis • Marine Water Analysis• Swimming Pool Water Analysis         • Waste Water Analysis for License  Green Building • BEAM                            • Carbon &amp; energy audit•LEED  Soil •Solid Waste Analysis•Sediment Analysis  Environmental Products • Product carbon footprint evaluation      • Biodegradable Product•Performance evaluation of environmental products Other Services • Noise Analysis                      • Odor Measurement•Trade Effluent Surcharge (TES) Appeal- Appointed by Hong Kong Drainage Services Department  Sustainability• Environmental, Social and Governance (ESG) consultancy 

Environmental Testing

This UV light testing service can act as the UV simulator, acid rain simulator and outdoor moisture attack tester. Theadvanced equipment helps offer stable and reliable results. This light testing service is especially suitable for small- to large-sized companies. Effective and efficient.Excellent after-sales support.To know more or enquire any specific service, please visit https://www.stc.group and fill in our enquiry form on https: www.stc.group/contact. 

UV Light Testing

Weprovide high-quality testing services for sunglasses and sun glare filters. Our testing standards meet the EU directive requirements, and wehelp you to develop business in EU markets. Our test scope includes blue-light absorption, UV absorption, scattered lights, lens robustness, resistance to ignition, lens transmittance uniformity, polarizing filters, gradient filters, material and surface quality, and resistance to radiation. EU directive of Personal Protective Equipment (PPE) 89/686/EEC specifies the fundamental safety requirements for sunglasses.All sunglasses are required to meet the fundamental safety requirements EN 1836:2005.To know more or enquire any specific service, please visit https://www.stc.group and fill in our enquiry form on https: www.stc.group/contact. 

Sunglasses and Sun Glare Filter Testing

TUV Rheinland HK Ltd

more detail: https://www.tuvrblog.com/wp-content/uploads/2025/02/%E4%BF%9D%E6%B8%A9%E6%9D%AF%E7%AD%89%E9%A5%AE%E5%93%81%E5%AE%B9%E5%99%A8%E6%B5%8B%E8%AF%95%E5%92%8C%E8%AE%A4%E8%AF%81%E6%9C%8D%E5%8A%A1-SCEN.pdf 

Testing and Certification Services for Thermal Mugs and Other Beverage Containers

SGS HK Ltd

A wide variety of voluntary ecolabeling schemes have appeared in recent years to help businesses striving to meet consumer demand for more sustainable products and services. However, environmental claims will only help consumers if they are based on scientific evidence and can be trusted. SGS green marksOur independent assessment scheme, based on recognized standards such as ISO 17065, ISO 17029, ISO 14065, and ISO 14021, ensures your product has passed all defined criteria allowing you to differentiate your product in fractured markets. All protocols include a clearly defined product scope and certification/verification criteria, including: Biobased ContentBiodegradabilityIndustrial CompostabilityHazardous Substance AssessedPVC-FreeRecycled ContentWhat are the benefits of the SGS green marks?Products certified/verified under our program will gain global recognition via the SGS Green Mark. This mark can be used on the product, packaging, promotional materials, and advertising to show end-users that the environmental claim is certified or verified by SGS. All marks have a QR code that allows consumers to confirm that the mark and claim are authentic. Additionally, it will provide consumers with a link to a quick summary of the specifics of the certification. Other specific benefits include: Provides third-party credibility to single-attribute environmental claims, facilitating trust and confidenceReduces the risk of greenwashingDifferentiates your product from the competitionVisualizes corporate commitment to ESG and leadership in green product developmentFacilitates access to new customers and marketsEnhances brand image Build trust in your product or brand and gain competitive advantage in complex global markets with independent certification or verification by SGS. 

SGS Green Mark

Hydrogen has the potential to supply our future energy needs. That's why we are committed to contributing to a future that meets the needs of both people and the environment in a sustainable way. And that's why we are supporting the development of hydrogen as the energy carrier of the future. When the foray into not yet fully developed areas, and a lack of regulations, guidelines and experience can make it difficult to gain a foothold in the hydrogen economy. We support you with a comprehensive package of integrated services that includes testing, inspection, training and consulting. Our expertise will help you to manage the risks to people, plants, businesses and the environment and to create safe operating conditions. The path to a sustainable hydrogen economy has its challenges, but it's worth it. Let's walk it together. 

Green Hydrogen - An energy carrier with potential.

At the stage of food selling, our product certification service can promote and strengthen the "good quality", "environmental friendly", "reliable"….images of your products which in turn enhance the consumers’ confidence.  Types of Service Examples Chemical testing Colorants, Metals, Veterinary Drugs, Sweeteners, Pesticides, Toxins, Preservatives, Antioxidants, Mineral Oils, Nutrition composition and labelling Biological testing Bacteria, Viruses, Parasites Others Species authenticity, Allergen testing, GMO testing, Shelf-life study, Audit service 

Food Testing

At STC, we offer comprehensive food contact materials testing services to assist manufacturers, suppliers and retailers ensure that products comply with relevant food contact material regulations in countries such as Europe, United States, China and Japan. We also offer quality and performance testing services to verify products claims and technical analysis for product improvements to meet industry standards and consumer expectations.   STC is the only testing laboratory in Hong Kong working in collaboration with industry leading laboratory LUCIDEON to provide reliable and specializedceramic testing and cookware testing services.  Ceramic Testing Metal Release(EU 84/500/EC, 2005/31/EC; US FDA 7117.05, 7117.06)Thermal Shock(ASTM C554, BS EN 1183)Microwave Safe(ASTM C1607, BS EN 15284)Dishwasher Safe(ASTM C676, BS EN 12875)Metal MarkingCookware Testing(BS EN 12983) Thermal HazardHeat ResistanceFatigue ResistanceTorque ResistanceBending StrengthPencil Hardness Test for CoatingPouringPlasticware Testing European UnionRegulation(EU No. 10/2011)United States(FDA 21 CFR 170-190)Japan(Food Sanitation Law)China(GB 4806)Cutlery Testing Cutlery for Preparation of Food(ISO 8442-1)Cutlery with Stainless Steel and Silver plating(ISO 8442-2)Table Cutlery with Non-metal Handles(BS 5577)Child-Use Cutlery and Feeding Utensils(BS EN 14372)Glassware Testing Annealing and Temper Number(ASTM C148)Thermal Shock(ASTM C554, BS EN 1183)Other Kitchenware &amp;Food Contact Material TestingItems Insulated Container Testing(e.g. insulated water flask) BS EN 12546Ovenware Testing(BS EN 13834)Toughened Glass Panels Testing(BS 3193)If you have any further question, please feel free contact us or visit our website: https://www.stc.group/en/contact To know more or enquire any specific service, please visit https://www.stc.group and fill in our enquiry form on https: www.stc.group/contact. 

Food Contact Materials and Kitchenware Testing

In order to help manufacturers ensure the safety and control the quality of their products, STC provides a wide range of comprehensive Chemical Testing services for products including:  Household Chemicals Cleaners Antibacterial Effectiveness TestSodium HypochloriteContent(ASTM D2022)Anionic Active Matter ContentPhosphorus ContentEtc.Toothpaste Fluoride ContentPH ValueDiethylene Glycol ContentEtc.Industrial Chemicals Thinner(e.g. toluene, benzene content)Petroleum ProductsViscosityDensityElement ContentEtc.If you have any further question, please feel free contact us or visit our website: https://www.stc.group/en/contact To know more or enquire any specific service, please visit https://www.stc.group and fill in our enquiry form on https: www.stc.group/contact. 

Chemical Product Testing

V-Trust Inspection Service Co., Ltd

This lab testing service is carried out by a group of professionals for added effectiveness. The advanced machines and technologies used help guarantee added accuracy. This lab testing is compatible with CPSIA, REACH, CE and RoHS certifications. 	 Efficient and reliable. 	 With excellent after-sales supports.  

Lab Testing

Nemko Hong Kong Limited

The G-mark certification mark is mandatory in the Gulf States for some common household products. The countries, currently part of the scheme, include Kuwait, Bahrain, Oman, Qatar, Saudi Arabia, Yemen and the United Arab Emirates (UAE). Nemko is a notified body for the region. Let us guide you through the entire process in a few steps. You can then sell your product to over 80 million people. Product scoperefrigerators and freezersovenswater heatershair dryerswashing machines/dryersand many moreFor the full product scope,click hereand open List No (2). The schemeThe scheme has many similarities to the European Low Voltage Directive (LVD) but requires certificates to be issued by a registered Notified body. It also includes EMC in addition to product safety. You will find the regulation named “Gulf Technical Regulation for Low Voltage Electrical Equipment and Appliances - BD-142004-01”here. Why should you choose Nemko?Nemko has been working with market access to the Gulf region for many years, both directly, and through local partners. Our experience and knowledge will allow a smooth process.Nemko is one of the major certification bodies for pre-shipment certificates, which are still mandatory for most Gulf countries.Nemko was one of the first companies to become a Notified Body for the Gulf Technical Regulation and we have experienced personnel who are participating in the further development of the certification scheme. We aim to always provide you with the latest changes and updates regarding the scheme.

G Mark Certification

 	 With our own qualified and accredited in house labs, V-Trust can manage the testing of samples according to your requirements, your market&#39;s local regulations and government&#39;s standards efficiently. We provide various qualification testing services, such as, CE, EMC, RoHS, REACH, CPSIA, EN71, ASTM, Oeko-Tex, etc.  

Wide Expertise in the Home Appliances Industry  V-Trust's inspection services for home appliances provide invaluable support to buyers, ensuring that products comply with safety requirements and quality standards.  By identifying potential defects, electrical hazards, and performance issues before products reach the market, V-Trust helps buyers mitigate risks and avoid costly problems.  Detailed inspection reports with photographic evidence available within 6 to 24 hours after inspection.  Why V-Trust  ✔ Full-Time Inspectors Only: We do not hire part-time QC staff or outsource to other firms. This approach serves as a key anti-bribery measure and ensures the highest level of reliability in our inspection reports. ✔ Diverse Product Range: Our team covers a wide range of product categories, including electronics, electrical products, lighting, building materials, furniture, home décor, kitchenware, textiles, apparel, and industrial goods. ✔ 2,500+ Checklists: We offer comprehensive checklists for various product lines, drawing on our extensive QC experience. ✔ Online Booking: Easily book services through our advanced online system, and access inspection results and supply chain statistics via the QC dashboard. ✔ Quick and Efficient Service: Receive same-day quotations, with reports available 6 to 24 hours after inspection. We also offer free laboratory testing and regulatory consultations.  About V-Trust  V-Trust is the largest product inspection company in Asia, employing only full-time inspectors. With over 600 staff across 10 Asian countries, we conduct more than 110,000 inspections and audits annually, serving over 13,000 buyers worldwide.  We are experts in the quality control industry, offering a wide range of cost-effective services, including product inspections, factory audits, laboratory testing, and product certification.  V-Trust operates in China and key export markets such as India, Vietnam, Malaysia, Thailand, Bangladesh, Pakistan, Cambodia, Indonesia, and Myanmar.  For more information, please contact us:Website: www.v-trust.com 

Home Appliances Product Inspection

HONGKONG YILAW INSPECTION AND TESTING TECHNOLOGY CO., LIMITED

Confirm your products meet hazardous substance restrictions under RoHS directives. Service Highlights Test for lead, mercury, cadmium, and other restricted substances Analyze materials and components for compliance Ensure conformity with EU environmental regulations Prevent customs delays and market recalls Provide official RoHS compliance reports Why Choose ECQA Experienced inspectors across key sourcing regions Accredited laboratories for precise substance analysis Transparent reports with lab data and certification evidence Flexible scheduling to align with production and shipping About ECQAECQA is a third-party inspection and quality control service provider operating across Asia, Europe, and other major global manufacturing hubs. We offer product inspections, factory audits, testing, and certification to ensure quality and compliance. Book RoHS Testing TodayProtect your market access. Contact us for a quotation. 

RoHS Testing

Cleaner Production Partnership Programme

 Hong Kong – Guangdong Cleaner Production Partners Recognition Scheme   

 Federation of Hong Kong Industries

The Hong Kong Green Mark Certification Scheme is a system certification scheme. It helps to identify, control and monitor the environmental aspect of a company’s operations. It directs companies to establish environmental performance benchmarks and make continuous improvement to achieve the desired level of environmental performance.

My Sourcing