AQL Sampling in Quality Control Inspections

Due to the high costs associated with piece by piece inspections, these are generally limited to small rush orders and high value products. In most cases, it is not necessary to inspect every piece of an SKU in a lot before shipping. The industry standard for a pre-shipment inspection is to perform a check on random samples of a production lot after production is at least 80% complete and packaged for shipment.

This is a more cost-effective approach and is widely accepted for most consumer goods. Sampling rates in a quality control inspection have been established to calculate the defect rate, or defect percentage, in a production lot. It is called the Acceptable Quality Limit or Level (AQL) and is widely used as the framework for determining the appropriate sampling size (number of items checked) and ratios of defects found in the sample size.

What is AQL?

The AQL standard is defined in ISO 2859-1 as “the quality level that is the worst tolerable percentage or ratio of defects that are still acceptable”. It represents the maximum number and type of defects that can be accepted in an inspected example, beyond which the entire batch must be rejected.

AQLs can be set for a percentage or number of critical, major and minor defects. In practice, these three levels are most often used, and especially for consumer products. They are defined as follows:

  • Critical Defects – 0%

Not acceptable as a user could be harmed, the product is not compliant with regulations, or the defect results in product failure.

  • Major Defects – 2.5%

This represents defects that result in the product being considered unacceptable by the end user.

  • Minor Defects – 4.0%

Failure to meet specification in ways that most buyers would still accept.

AQL Table

The most common AQL standard for the consumer goods industry was developed by the American National Standards Institute (ANSI) and the American Society for Quality (ASQ). AQL table is used as a fundamental tool for preparing a sampling plan for random inspections of product .

Table 1 – Sample size code letters

Table 2 – Single sampling plans for normal inspection

Notes: “√” means acceptance       “×” means rejection

“↑  “ :use first sampling plan above arrow. If sample size equals or exceeds lot or batch size, do 100% inspection.

“↓  “: use first sampling plan below arrow.

AQL Sampling

Imagine you have an order of 960 articles of clothing ready to ship. How will you calculate the standard AQL required for the inspection?

  1. Check Table 1 for general inspection levels and select your lot size in the relevant range, which is 501-1200. If you run your inspection at the average inspection level II, your code would be the letter J.
  2. On Table 2 locate the code letter J and , and you can see your sample size is 80, which indicates the number of pieces required to be inspected.

Determine the number of defects

Based on the sample size above, you still need to determine the allowable or maximum number of critical, major and minor defects to pass the inspection. AQL 0.0 is for critical defects, AQL 2.5 for major defects, and AQL 4.0 for minor defects.

To determine the number of allowable major and minor defects, follow the J row to the 2.5% column where the numbers 5 and 6 are recorded. The lower number, 5, is the maximum number of allowable defects that will result in acceptance. In the same way, you can find the number 7 as the maximum number of allowable defects for minor defects.

AQL Summary Table

AQL Summary for 960 Articles
Level Sample AQL Critical AQL Major AQL Minor
G-II 80 0.0 2.5 4.0
Max Allowed 0 5 7

General and Special inspection levels

Special inspection levels (S-1, S-2, S-3, S-4) are normally used for certain types of on-site inspections or checks that are only necessary on a relatively small number of units in the lot. The results are not likely to differ significantly between units inspected (often <10 units), and especially where an inspection requires destructive or time-consuming tests.

General inspection levels (G-I, G-II, G-III) are the most common inspection levels used for larger lots. These cover all the regular checks and tests that can be conducted relatively quickly with varying results across all items sampled. They are generally used in the following way:

  • G-I

Products with less strict requirements

  • G-II

The most common sampling plan for consumer products under normal conditions.

  • G-III

Products with more strict requirements.

AQL sampling and QC inspection with HQTS

AQL sampling is a practical and effective way to perform quality assurance on an order of manufactured goods to reduce the risk prior to accepting an order. Backed by the industry knowledge and experience of nearly 1,500 professionals, in more than 20 countries, HQTS is well-suited to be your partner in quality.

Trend Report – The Challenges of Sourcing in Vietnam

The economy booms but with scathing criticism from international buyers

Vietnam’s economy has been rapidly growing the last decade, with the GDP overtaking China in 2017. It continues to be one of the world’s fastest-growing economies. The Vietnam economy has not been affected by global economic slow-down and has benefited from the US-China trade war.

The rise of Vietnam manufacturing

Vietnam has risen rapidly as an important manufacturing sector in Southeast Asia and is playing a vital role in the global supply chain. Vietnam has been particularly focused on replacing China for labor intensive products, while slowly moving upmarket. The growth of the Vietnam exports, however, has not been accompanied by significant improvements in sourcing problems.

In contrast, the expanding production capacity has resulted in increasing sourcing problems, underscored by the frustration of many international buyers.

3 greatest challenges for sourcing in Vietnam

Product quality

The challenges facing products made in Vietnam are similar to those in other developing countries.

  • Product quality
  • Low prices
  • Meager earnings abroad
  • Weak branding

The fatal flaw is a lack of professional quality control. This issues has damaged the reputation of products made in Vietnam.

Poor or no quality systems, inferior production environments, and the lack of quality responsibility and accountability have had detrimental on the establishment of quality systems in Vietnam.

The issue of product quality is a primary bottleneck which restrains Vietnam industry in striving for excellence, and faster adoption by the global market.


Subcontracting is very common in the Vietnam manufacturing industry. Suppliers and factories try to cut costs by subcontracting work out to other suppliers to reduce their cost. This makes it difficult to know who is making your products.

Many of these are small and less qualified suppliers. They often operate in the shadows with poorly trained workers and no quality systems, training, or accountability.

Wages in this sector have grown far more slowly since the factory avoids regulation and labor laws. This results in incentives for larger manufacturers to shift production to smaller ones to produce products at cheaper prices at improved margins.


Corruption continues to be a major issue in Vietnam. To deal with some of these issues, it is important to be well educated on the businesses environment.

  • Labor Law
  • Child labor
  • Wage Irregularities
  • Slave Labor
  • Corruption
  • ­Bribery
  • ­Extortion
  • Fraud

Vietnam’s economic development has led to a series of public issues related to ethics and social responsibility ensnaring some major consumer brands.

Some of these brands were forced to admit lack of controls in their sourcing process that led to use of sweatshops and other suppliers with related issues.

While many brands are trying to address the fallout by proactively focusing on ethics in their Vietnam supply chain, it remains a pervasive problem.

Growing strain on international supply chains

Sourcing from low-cost locations in South and Southeast Asia bring obvious benefits, but the exposure to hidden risk cannot be underestimated.

To mitigate risk we recommend

  • Plan carefully in selecting suppliers and sourcing partners
  • Partner with an accredited quality control provider
  • Develop a balanced sourcing portfolio for each product category
  • Avoid over-reliance on few suppliers

How Can a QC Partner Help?

  • Develop and Implement a Supplier Standard

Supplier evaluations are critical. Setting a standard specification will help ensure suppliers being evaluated are being measured equally, and for the most important aspects. A trusted QC provider can help you do this.

  • Conduct factory Audits and Evaluations

While doing your own evaluation is an option, it is often much cheaper and more effective to rely on a local 3rd party provider to help. They know the business environment and are well suited to ferret out issues.

  • Quality Control

Aside from hiring your own staff, there is no better way to ensure your interests are guarded than with a QC partner.  From helping to optimize your supply chain, monitoring production, and doing inspections, the benefits far outweigh the cost. Let HQTS take he guess work out of ensuring social responsibility, on-time delivery, and quality management.

How to Select Safe Clothes for Babies

Each year there are hundreds of recalls of baby clothing due to various factors including:

  • Hidden toxic chemicals

These underscore the need for parents to be cautious when choosing baby, toddlers, and children’s clothing. As these more recalls find their way in the news, it is no wonder see a stronger interest in organic fabrics, such as pure cotton. What more can parents do?

Avoid Toxic Chemicals

Most baby clothes are manufactured with conventional cotton, polyester, nylon, or other synthetic materials. Such garments especially are produced with synthetic dyes and toxic chemicals such as:

  • Azo dyes
  • Phthalates for plastic softening
  • Pesticides for mold mitigation
  • Formaldehyde
  • Per/poly-fluorinated chemicals found in footwear, coats, and swimwear
  • Perfluorochemicals and nonylphenol ethoxylates for wrinkle, stain, fade, and static cling resistance
  • Organotin as a biocide for sweaty sportswear and footwear

Synthetic clothes typically are made from petroleum products, which may contain toxic chemicals that may cause allergies and disrupt the development of the immune and reproductive systems. That “new” smell in clothing usually indicates the presence of chemicals. If it lingers after washing, it is an indicator that the chemicals are still present, and at unsafe levels.

What Can Parents Do?

Look for the clothes made of chemical-free materials, such as organic cotton, bamboo, silk, wool or hemp, and so forth to avoid the risks associated with traditional cotton or synthetic clothes.

Buying the clothes made of chemical-free materials dramatically reduces the likelihood that you expose your baby to endocrine disruptors and carcinogens. However, clothes should also be washed using a non-toxic laundry detergent before use, preferably multiple times. If a company claims the use of “organic cotton” or “natural dyes”, they must prove it. Check for 3rd party certification to back up the claim, and that Oeko-Tex Standard 100 accepts the certification. Oeko-Tex is the strictest standard out there.

Avoid Physical Harm

Good sense when shopping for baby close can go a long way toward providing safer clothes, for example, parents should avoid:

  • Accessories easily removed and ingested
    • Buttons and accessories
  • Drawstrings or embellishments that could be a choking hazard
    • Bows, drawstrings, ties, decorative rhinestones

Such decorations present a choking risk to your child.  Apparel with long ties, or that pull tightly around your baby’s arms, legs, or neck are also unsafe. If you feel such are necessary, do not hesitate to test the accessory. For example, a strong pull on the attachment to ensure the thread is tight will avoid coming off. Remember, anything that fits in a baby’s mouth is likely to be there are some point n their young life. And, anything that could become wrapped around a throat or limb is likely to do so.

Choose Fire-Safe

Loose-fitting and floaty garments like dresses, nightdresses, and dressing gowns are especially susceptible to fire and will quickly melt while they burn. These types of clothing do not match most global safety standards. That is not only for an open flame. It includes electric and gas fires, lamps, or appliances that are hot enough to melt or spark a flame. It is essential to follow instructions label to confirm the fabric itself is flame-retardant and the best fit for fire-retardation, especially for sleepwear.


It is not necessary for parents to be frightened of children’s clothing. However, it is crucial to educate yourself and be cautious, especially when buying from an unknown source. Knockoffs abound and are often present the most significant hazard to your child. There are many excellent brands, with long histories of manufacturing safe clothes for children, but do your research.

Sourcing in Vietnam – Wood Products and Furniture

Vietnam is one of the most dynamic countries in terms of growth in furniture production. The country has consolidated its position not only for local consumption but is also establishing itself as an attractive option for offshore manufacturing for overseas companies. It is currently the second-largest exporter of furniture in the Asia-Pacific region, and fifth in the world, behind China, Germany, Italy, and Poland. In 2017, furniture exports were valued at around USD 7.66 billion, increasing to USD 8.66 billion in 2018.

The Vietnam furniture market has an annual double-digit growth rate. Forecasts for 2020 indicate a target of 10 billion USD in exports is feasible. The furniture industry in Vietnam has highly competitive advantages due to its high labor requirements.

Raw Material Supply

According to the Vietnam Administration of Forestry and the Vietnam Rubber Association, Vietnam produced more than 22.7 million cubic meters of round wood in 2015; 24.4 million round cubic meters in 2016; 25.7 million round cubic meters in 2017, and almost 27.5 million round cubic meters in 2018.

Although orders are rising, the industry does not face a lack of sources for material for processing furniture for export. Timber is a renewable material source, and the Vietnam Government encourages and support broad reforestation efforts, with the forest coverage now at 41-42% compared with 27% just 20 years ago.

According to the Ministry of Agriculture and Rural Development (MARD) of Vietnam, Vietnam has 4,500+ wood processing companies, of which 95% are privately owned. In 2018, the number of enterprises processing wood products for export reached over 1,800, an increase of more than 300 compared with 2017.

(Data source:

Free Trade Agreements

The European Union-Vietnam Free Trade Agreement (EVFTA) and the Comprehensive and Progressive Agreement for Trans-Pacific Partnership (CPTPP) came into force in January of 2019, which makes Vietnam an attractive production location. Lower tariff rates, together with benefits such as low operating costs, stable political conditions, and cheap labor are essential reasons for considering Vietnam as a good option for your furniture sourcing.

The number of orders from CPTPP countries, including Canada, Japan, New Zealand, Australia, and Peru, has increased significantly this year. For example,  Vietnamese wood furniture manufacturers have signed contracts totaling $300 million for export products to Canada in 2019. The figure was less than $100 million a year in previous years.

The benefits of policy preferences include:

  • Tariffs will be cut to zero for most product categories, which paves the way for Vietnamese products to enter CPTPP/EVFTA markets.
  • The lower import tariff on technologies and equipment will allow Vietnamese enterprises to purchase more modern technologies and equipment from developed countries helping to improve their quality and productivity.

Supply Chain Challenges

From the above analysis, we can see the opportunities of considering the Vietnamese furniture industry in your sourcing planning. However, sourcing from Vietnam comes with risk. The most significant risk is related to quality. Historically, the industry rife with systemic quality issues. From the lack of quality control systems and processes to a lack of transparency in the upstream supply chain, this is a knotty problem (no pun intended) throughout the industry. In its simplest form, three major players comprise the industry’s supply chain.

Often, these businesses do not promote a dynamic supply chain environment with transparency at all levels. They also lack familiarity with a common set of quality systems, technical production standards, including raw material standards, transport standards, product specifications, and quality standards for finished products. So, quality control is a significant issue for furniture production in Vietnam.

According to FM Global Resilience Index, Vietnam received a score of 19/100 for quality control of local suppliers, while the figure for China is 45. Also, Vietnam’s evolving economy continues to have issues with sustainability, logistics, environmental, and labor issues such as code violations and forced labor.

These statistics highlight the importance of engaging with a professional third-party quality control provider who has your back in the factory. From assisting with vendor selection, evaluations, and audits, to conducting product inspections and management, HQTS Group Ltd. can go a long way in helping you avoid quality issues.  Partnering with HQTS can help ensure that your specifications and standards are being met and promote a holistic end-to-end supply chain.

HQTS is your best choice for ensuring quality in Vietnam.

Case Study – A Supply Chain Breakdown


ShangYing Apparel Co. is a South Korea based apparel manufacturer established in 2006 by parent company ShangYing Group Co. Ltd. It is a full-service manufacturer with independent design, development, and production.

A young team was formed to manage the subsidiary, bringing creativity, fast pace, and bold designs quickly to the market to dominate their niche. The approach was wildly successful. The manufacturing environment was in tune, market demand was growing, and the business expanded rapidly. In less than ten years, the brand grew to two major lines, three local factories, and nearly thirty partner upstream suppliers in China.

The Issues

The rapid expansion resulted in complicated supply chain issues, such as multi-level contracting, questionable raw materials and accessories, and unskilled labor’s inferior workmanship, among others.

Also, fast fashion was coming into its own as a result of the changing consumer habits of the younger generation. ShangYing management was developing and launching a dozen new products weekly in what became a very complex supply chain. The result of this fast growth and disparate supply chain was loss of quality control, increased recalls, returned goods, damage claims, and other pressing issues.

For example, a batch of new style short sleeved shirt was put into production immediately upon design completion. However, most of the factory’s employees were not familiar with the new product, and because of the limited time and volume, some factories had no choice but to subcontract production to other small, untested factories. As a result, more than 40% of finished products had significant quality problems with thread, color stains, and sewing. Whole batches of products had to be recalled and destroyed. The result was financial loss and damage to their brand reputation.

Findings – Supply Chain Analysis

ShangYing Company selected HQTS as the quality control provider to help solve issues with the summer/autumn line of products. Our team members establish a new set criterion on which to evaluate vendors and conducted a thorough analysis of all vendors based on that. Based on the review, recommendations were made to weed out the unqualified factories.

Findings – Internal Quality Control

The next step involved educating the ShangYing quality control department to strengthen internal quality management processes and systems. We completed a complete review of the company’s quality management system, including every level of management, defined responsibilities, employee authorities, communications, and accountability.

Many flaws were uncovered in the analysis. For example, a significant problem was the disregard of quality control in the push to push out new products quickly. It was already evident that doing so was costing the company substantial financial loss, brand damage, and customer trust.


HQTS field inspection team began providing pre-shipment inspection for finished goods, curbing many of the quality problems before shipping. HQTS team also discovered that a few of upstream suppliers were providing low-quality raw materials and accessories to the company. We helped the company to source alternative suppliers.

Suppliers on the bubble, in terms of quality, were directed to deliver finished products to our Sorting Inspection facilities for a 100% piece by piece inspection. When the time was tight, and production suffered large-scale quality issues, the team completed the inspection at the supplier’s warehouse.  This ensured that no defective products were shipped.


Since our engagement with the ShangYing Company, the overall quality profile of their products has improved dramatically in a relatively short time. According to the final survey, returns and recalls of the summer/autumn series decreased from 40 batches in Q2 2017 to less than 12 batches in Q2 2018. The inspection failure rate dropped from 51% to 16%. Improvement is still in progress. A real advantage to this company is that they were able to benefit from our team’s experience to implement our suggestions and improve their internal quality management.


This engagement was an excellent example of the benefits of working with a qualified 3rd-party provider to help reduce the risk of quality issues.

In today’s globally connected community, supply chains are increasingly sophisticated. Many companies find they must view their entire supply chain more holistically. Transparent partnering with upstream partners and help from a top 3rd party quality control provider can do much to enhance your competitive strength.

Selecting Safe Toys for Children: Electrical/Electronic Toys

In our digital age, technology is increasingly moving into the world of toys and games for children. These are often focused not just on fun, but also on the development of physical and intellectual skills of children. From encouraging actionable activities to challenging a child to think, feel, and react in new ways to promote positive qualities in our children.

The Risks

Toys that are improperly used or poorly designed can rapidly turn from a source of fun into a serious hazard. Toys that are defective, poorly constructed, mis-wired, or misused can shock or burn. Toys powered by electricity must meet mandatory safety requirements for maximum surface temperatures, electrical construction, and include prominent warning labels. Children should be taught to use such toys properly and be under adult supervision.

Batteries and battery fluid pose serious risks, including choking, internal bleeding, and chemical burns. So, battery-operated toys should have battery cases that secure with screws so that kids cannot pry them open.

Set Limits

Toys that use flashing lights, constant changes, and rapid movement are very appealing to children. However, children playing with such toys for an extended period may find it more challenging to focus on more mundane tasks such as reading or a toy that requires imagination.

Many child development experts recommend that children between ages 2 to 5 years play with electronic toys no more than 30 minutes at one time, and no more than one hour per day.

Among the reasons they cite include:

  • Reduces the quality of parent-child interaction
  • Overstimulation
  • Often the toys are very sedentary
  • Decreases creativity and imaginative play
  • Reduces interaction with other children

There is no single solution for every family or situation, but as the child grows, use can grow incrementally as well. However, if the parent spends all day on a digital device, it is hard to imagine a child learning differently. The parent’s example and interaction with the child can have a profound influence on the choices a child makes as it grows.

Regulations and Standards

Electronic toys must meet the following regulations and standards to ensure safety when used by children:

  • International: ISO 8124, IEC 62115
  • China: GB 19865
  • USA: CPSIA, ASTM F 963, California Proposition 65
  • EU/EEA: Directive 2009/48/EC, EN 62115
  • Australia / New Zealand: AS/NZS 62115

Compulsory markings

Electrical and electronic toys sold in many countries must bear the specific marking for that country or territory including:

  • China: CCC Mark
  • USA: FCC logo (toys subject to a Declaration of Conformity)
  • EU/EEA: CE marking (safety requirements in Toy Safety Directive 2009/48/EC)
  • Australia / New Zealand: RCM Mark (RF or radio-controlled toys)

Sourcing in Vietnam – Textiles & Apparel

Sourcing in Asia has become a matter of critical importance to companies around the world. To ensure efficiency in the supply chain while maintaining high quality at low cost is, for some firms, a matter of survival. Due to this, many companies are expanding, or moving operations, from China to Vietnam and other ASEAN locations. Countries in this region will continue to play an increasing role for professionals sourcing in Asia.

Global demand for textile and apparel is growing along with this shift in sourcing opportunities. Vietnam has proven capable of producing labor-intensive products, including textiles and apparel, at a lower cost. It has thus emerged as a leading sourcing destination for textiles and apparel.

Some positive factors include:

  • Center of garment manufacturing
    • It is the world’s 2nd largest garment exporter after China
  • Preferential market access
    • Membership in the CPTPP and EU FTAs has a significant impact trade and investment
  • Competitive factors
    • Low labor costs that are up to 50% cheaper than China’s
    • Low facility development costs
    • Many Chinese and Taiwanese owned factories
    • Fiscal incentives from the government for development

There are also many risks to sourcing in Vietnam, especially for new-comers and middle and small-sized enterprises.

For example:

  • Finding and vetting reliable suppliers
  • Longer lead time due to supply and infrastructure issues
  • Lack of technical know-how in the production process
  • Higher rate of defects and failure to meet shipping schedules

HQTS has long had operations in Vietnam and throughout ASEAN countries. Some suggestions our staff has made to help mitigate the risks of sourcing in Vietnam include:

  • Establish a method for clear communication and understanding of expectations
  • Production monitoring to ensure expectations are met
  • Engage a 3rd party inspection and testing facility
    • Factory audits and supplier evaluations
    • Pre-production monitoring and upstream supply chain audits
    • During production inspections and quality control monitoring
    • Final check for appearance, workmanship, functionality, specifications compliance, packaging, labeling, loading, and container assessment.


Current politics almost dictate that importers must consider Vietnam and other ASEAN countries as a possible region for sourcing your products. Mitigating risk and improving the bottom line are crucial to making a success of it. Working with a company like HQTS Group Ltd. can help.

Southeast Asia: The World’s New Factory?

The topic of reducing manufacturing costs by relocating supply chains away from China to Southeast Asian countries, including Vietnam and India, has been ongoing for years. The escalating Sino-U.S. trade war is accelerating the pace of these discussions and migration.

Vietnam and India have made some of the most significant strides in developing the infrastructure to support global supply chains. For this reason, many industry professionals look to Vietnam and India as the new “world’s factory” in place of China. The sharp rise in foreign investment in these countries supports this view.

Some importers, however, remain skeptical of supplier’s ability in these areas to provide the same level of infrastructure and industry expertise offered in China. Despite the value of lower labor costs, buyers must also consider the ability of factories to manufacture at acceptable quality levels and time frames that meet your requirements.

Manufacturing Expertise

Importers looking to shift production from China to Vietnam and India should weigh the risks associated with a workforce that is relatively inexperienced. While factories in these regions currently produce a wide variety of products, many are newly established and lack sophistication with the export market. Production line workers also lack deep experience with quality control principles and processes.

The Cost of Quality Control vs. China

Many importers sourcing in these regions engage a professional third-party quality control provider to conduct product inspections. They are finding the costs of such services can vary widely depending on factory location, and other factors.

If your third-party QC provider does not operate widely in Vietnam and India, you will face higher QC inspection costs and reduced technical capabilities. Many inspection companies in China don’t have a global presence. However, with a view on expanding into these regions, some outsource their services to local people creating additional issues that may affect your products.

Some of the issues include:

  • Reduction in direct oversight and control
  • Dilution of technical capabilities
  • Reduced accountability
  • Higher travel expenses for inspectors not based locally
  • Longer lead times for scheduling inspections
  • Integrity issues due to a lack of centralized ethics and operational policies


As can be seen, there are many factors to weigh when considering a shift from China to other countries in Southeast Asia. Some have done it successfully, while others have struggled. The key is to find the right partner to assist you in the process, and to ensure the benefits offset the risks.

About HQTS

At HQTS, we have long supported our customers throughout greater Asia, with operations offices in Vietnam, India, and other 20 countries in the world, aside from our many China locations. We provide a wide range of quality control services, including quality control inspections, factory audits, supplier evaluations, supply chain, testing, production control and management, and quality assurance consulting. HQTS is your best choice for a quality assurance partner.

Gree Accuses Rival of Substandard Product Quality

China’s Gree Electric Appliances Inc. accused its rival, Aux Group, of producing and selling substandard air conditioners.

According to Gree, it discovered that Aux was mislabeling its products, and eight of the models being produced and sold by Aux have inaccurate energy efficiency labels. Gree claims that the energy efficiency of the named models is significantly lower than what Aux claims on its labels, which violates the China Consumers Association quality mandate for manufacturers.

The company followed up its allegations with an inspection report from the Sichuan Institute of Electron Production Supervision. The report shows that eight products from Aux did not meet China mandatory standard of GB 12021.3-2010 for the Minimum Allowable Values of the Energy Efficiency and Energy Efficiency Grades for Room Air Conditioners and the Product Quality and Standardization laws of China.

Quality is critical to a business’ reputation and for meeting customer expectations. Adherence to recognized quality standards is the responsibility of all companies, and accredited quality control systems play a crucial role in complying with those standards. Quality control and product inspection and testing can also help you win new customers or enter new markets by giving prospects independent confirmation of your company’s ability to supply quality products.

It is the mission of HQTS to be the most competitive and trusted quality control provider in the world.