Certification

Antibacterial Textiles can prevent harmful bacteria from proliferating on fabrics and thus effectively reduce bacterial infection and related pathological changes that might adversely affect human health. Therefore, antibacterial treatments are widely applied in textile industry. Antibacterial Textiles find applications in products for households, furnishings, hygiene, cleansing and automobiles. Products include towels, socks, insoles, shoe linings, underwear, sportswear, leisurewear, shirts, blouses, work wear, medical garments, bedding, non-woven products and many others. The quantitative evaluation of antibacterial activity is judged by the bacteria reduction.

With current technology in Taiwan, antibacterial textiles for general use shall possess a Bacteriostatic Activity Value of at least 2.2 for quantitative test and there shall be existence of inhibiting halos for qualitative test (halo test). Bacteria used for testing are Staphylococcus aureus and the test method applied is JIS L1902.

This criterion is applicable to the evaluation and testing of antibacterial activity of textile for general use. The quantitative evaluation of antibacterial activity is judged by the percentage of bacteria reduction.

3.1 Criteria：

Textile must achieve antibacterial activity expressed by percentage reduction of bacteria (%) to grade 2 or above on two specified test organisms, after being washed for 50, 20 cycles by an approved lab, or no washing required for disposableproduct so to meet the requirement set for FTTS-FA-001.

3.2 Washing requiremen：

3.3 Classification of antibacterial activit：

3.4 Toxicity test：

The applicant must provide animal test reports with dermal irritation test (PII primary irritation index1000 mg/kg, no mortality nor abnormal symptom) for the antibacterial finishing reagent used for the treated textile. This can also be provided by test report copy from a third party or guarantee letter from antibacterial finishing reagent supplier.

This criterion is applicable to the evaluation and testing of antibacterial activity of textile for medical use. The quantitative evaluation of antibacterial activity is judged by the percentage of bacteria reduction.

3.1 Criteri：

Textile must achieve antibacterial activity expressed by percentage reduction of bacteria (%) to grade 2 or above on two specified test organisms, after being washed for 100 cycles by an approved lab, or no washing required for disposable product so to meet the requirement set for FTTS-FA-002.

3.2 Washing requirement ：

3.3 Classification of antibacterial activit：

3.4 Toxicity tes：

The applicant must provide animal test reports with dermal irritation test (PII primary irritation index1000 mg/kg, no mortality nor abnormal symptom) for the antibacterial finishing reagent used for the treated textile. This can also be provided by test report copy from a third party or guarantee letter from antibacterial finishing reagent supplier.

FTTS-FA-003 Electromagnetic Shielding Textiles

As everyone knows, many electronic devices such as cellular phones, computers and microwave ovens release electromagnetic waves. Based on the findings of studies and researches conducted by many domestic and international scholars and experts, it is very likely that electromagnetic wave harms human body but the problem is very easily neglected by most people.

Electromagnetic shielding textiles protect human body from such harm. They can be classified into three types:
1. Hybrid woven fabrics achieve electrical conductivity through twisting metallic fibers (which is thinner than human hair) with natural fibers or wrap natural fibers in metallic fibers to form electrically conductive composite yarns.
2. Conventional woven fabrics achieve electrical conductivity by undergoing finishing treatment processes such as electroless plating, sputtering and evaporation deposition. These processes fix electrically conductive metal particles on the surface of the fabrics to turn the fabrics into electrically conductive metallized fabrics.
3. Add conductive particles to polymers to form conductive filaments which are then spun into yarns and in turn woven into fabrics. The electromagnetic shielding effectiveness of such fabrics will not diminish even after many launderings.

Electromagnetic Shielding Textiles are usually graded into two classes – the Professional Use and the General Use. With current technology in Taiwan, general-use Electromagnetic Shielding Textiles can possess a shielding effectiveness (SE) up to a level of 30dB, while professional-use products can possess a shielding effectiveness from at least 30dB up to 50dB or higher.

This criterion is applicable to textiles in all forms, including woven, knitted, coated/laminated fabric and non-woven. To consider the durability, the pretreatment, ex: repeated laundering, weathering, may be required

3.1 The functional requirements in the test method are classified according to product end-use.

3.1.1 Class I--Professional use

for medical devices, safety uniform , shielding material for electronic component, assembly equipment and other application.

3.1.2 Class II--General use

for casual wear, uniforms (computer and telecom company), aprons, maternity dress,orprotective covers for consumer electronic products and other application.

(1) Class I － Professional use

(2) Class II － General use

Remark1：

SE： Shielding Effectiveness（dB）

ES： Percentage of Electromagnetic Shielding (%)

Remark 2：

Shielding Effectiveness (dB) can be calculated and converted into Shielding Effectiveness (%). Please refer to the Appendix Table for details.
1.2 General requirement for pretreatment

FTTS-FA-004 Moisture Transferring and Quick Drying Textiles

The quick drying capability of textiles (absorption of moisture and perspiration) is usually derived from profile fibers/fabrics, special weave structure or absorbent finishing. Textiles that transfer moisture and dry quickly mainly rely either on capillary action in their fibers/fabrics or moisture absorbency to quickly absorb moisture on skin surface and wick it away to textile surface. Affected by diffusion and air convection on textile surface, the moisture quickly evaporates, leaving the textile dry. These textiles are especially useful in hot climates or during intense workouts. They absorb huge amounts of perspiration, speed moisture to outer surface and keep the body dry. The capability of a textile to absorb water is called hygroscopicity and is measured by ‘wicking height’ and ‘water diffusion speed’. The capability of driving out sweat is known as ‘drying ability’ and is measured by ‘drying rate’.

Purpose and Scope

This criterion is applicable to evaluate the ability of moisture transferring and quick drying textiles in perspiration (simulated by water) transferring and quick drying.

3.1 The grading for the textiles performance in water diffusion ability

Table 1. The grading of water diffusion ability

3.2 The grading for the textiles performance in drying ability

Table 2. The grading of drying ability

3.3 The grading for the textiles performance in absorbency speed – dripping method

Recommendation: to meet the performance requirement of moisture transferring and quick drying textiles in absorbency, for knitted fabric the average time for no reflection of water droplet shall not be more than 2 seconds; for woven fabric the average time shall not be more than 5 seconds.

3.4 The grading for textiles performance in absorbency speed – Byreck method

To meet the requirement, both woven and knitted fabrics will have to reach the following standards in both warpwise (wale) and fillingwise (course) wicking heights.

Table 4. The grading of absorbency speed

FTTS-FA-006 Antifungal Textiles

These criteria are applicable to the evaluation and testing of antifungal activity of textile.

．Criteria :
Textile must achieve antifungal activity expressed by area of fungal growth (%) to grade C or above on 4 specified test organisms or on Trichophyton metagrophytes (ATCC 9533), after being washed for 50, 20, 10, or 5 cycles by an approved lab, or no washing required for disposable product so to meet the requirement set for FTTS-FA-006.

．Washing requirement：

．Classification of antifungal activity：

．Toxicity test：

The applicant must provide animal test reports with dermal irritation test (PII primary irritation index1000 mg/kg, no mortality nor abnormal symptom) for the antifungal finishing reagent used for the treated textile. This can also be provided by test report copy from a third party or guarantee letter from antifungal finishing reagent supplier.

FTTS-FA-007 Wrinkle Free Textiles

Cotton fabrics feature perspiration absorbency, softness and comfortableness. However, 100% cotton woven shirting, skirting and trousering are vulnerable to wrinkle, especially after laundering. Ironing is usually required to smooth away wrinkles and resume a flat, tidy appearance. Now, with the application of “wrinkle-free treatment for pure cotton fabric”, it’s no longer necessary to iron your pure cotton apparel every time after you wear it in order to maintain its smooth, wrinkle-free status – and such a nice status will withstand a whole day’s activities. This Easy Care function has allowed busy working people nowadays to lead an easier, happier life with more confidence. Moreover, the amount of free formaldehyde left in wrinkle free textiles is strictly regulated by legislative standards.

Current technology in Taiwan for Wrinkle Free Textiles sustains a grade of at least 3.5. The test method used is AATCC 143.

This criterion is applicable to the evaluation and testing of the smooth appearance of textile and apparel after repeated home laundering.

3.1 Smooth Appearance after 5 washes

3.2 Crease Retention after 5 washes

3.3 Seam Smoothness after 5 washes

3.4 Formaldehyde content

FTTS-FA-008 Ultraviolet Protective Textiles

1.Scope

This standard specifies the ultraviolet coefficient performance evaluation, and the basic
requirements of the standards and test methods evaluation for protective clothing (does not
apply to non-from UV Sunlight) for anti-solar ultraviolet textiles, clothing and other apparel
items (such as hats).

2. Definitions:
2.1.Ultraviolet Protection Factor, UPF: is defined as the ratio between "detected average
effective erythemal ultraviolet radiation flow (W/m2) with no skin protection from sample"
and "detected average effective erythemal ultraviolet radiation flow (W/m2) with skin
protection from sample".
2.2.Solar UV-A: solar ultraviolet radiation with wavelength between 315 and 400 nm.
2.3.Solar UV-B: solar ultraviolet radiation with wavelength between 280 and 315 nm.
2.4.Effective UVR transmission: ratio between "detected average effective erythemal ultraviolet
radiation flow (W/m2) with skin protection from sample" and "detected average effective
erythemal ultraviolet radiation flow (W/m2) with no skin protection from sample", expressed
in percentages.

FTTS-FA-009 Antistatic Textiles

Antistatic Textiles are mainly used to help human beings maintain work safety while working in an environment vulnerable to static interference. They are also used in operating rooms to prevent static electricity from interfering with major electronic medical devices. Moreover, in an environment with low humidity (very dry), garments on human body can produce a significant charge of static electricity due to friction. Antistatic textiles prevent human body from suffering the discomfort caused by static discharge.

Antistatic Textiles usually consist of metallic fiber blended with cotton, polyester, twisted or interwoven, as well as fiber containing “conductive carbon black“. For example, Nega-StatR by Barnet is a fine-filament bi-component yarn. Each filament has a unique, patented, “trilobal-carbon” conducting core surrounded by a sheath of polyester.

Four main measures are used to evaluate the antistatic function of textiles:
1. Surface resistance
2. Friction-charged electrostatic potential
3. Half-time
4. Decay time

With current technology in Taiwan, the friction-charged electrostatic potential of Antistatic Textiles can be as low as 1000 Volts or less (JIS L1094-B); their surface resistance can be as low as 1010Ω/sq or less (DIN 54345).

This criterion is applicable to textiles in all forms, including woven, knitted, coated/laminated fabric and non-woven. To consider the durability, the pretreatment, ex: repeated laundering, weathering, may be required.

3.1 Grade and Classification based on this specification

3.2 General requirement for pretreatment

Note 1
The treatment of washing durability may be varied upon agreement.

Note 2
The washing condition for Surface resistance and Decay time test should be based on AATCC 135; The washing method for Surface resistance test should be according to JIS L0217-103

FTTS-FA-010 Far Infrared Textiles

Far-infrared Ray is one band of the solar electromagnetic light-wave ranging in wavelength from 3μm to 1000μm. Far Infrared Textiles are made through adding special nano- or micron-sized ceramic powder to polymer before spinning.

Far-infrared materials can also be added during the dyeing or finishing treatment process of an ordinary fabric. After absorbing sunlight or heat from human body, Far Infrared Textiles will transform the energy into far-infrared with a wavelength of 4 to 14 μm and pass it back to human body. Far-infrared with a wavelength of 4 to 14 μm is known as the "light of life" or “biogenetic ray” and is capable of invigorating human physiology. Fabrics with far-infrared function can effectively achieve the purpose of thermal retention and are therefore ideal warm-keeping materials for activities in high-mountain or snowy areas.

Current technology in Taiwan for Far-infrared Textiles delivers an average far infrared emissivity of at least 0.85 and a temperature variation of at least 0.5℃. The test method for these textiles is not yet regulated internationally. Therefore, Taiwan Textile Federation simply uses domestically acceptable methods to test these fabrics.

This criterion is applicable to textiles except fibrous products and semi-products for medical use.

The far infrared textile processing includes mixing of raw materials, coating, lamination and submerging. As products made of mixing of raw materials deliver the same durability of the fiber, the wash-resistance test would not necessary. For products come of coating, lamination and submerging processes will have to have the 10 times wash-resistance test based on AATCC 135 (1) (III) (A) iii prior to conducting the performance test. The performance test is conducted in ambient temperature and the criteria are given as below:

FTTS-FA-011 Water Repellent Textiles

Water repellent fabrics are processed with water repellent additives, so that water form droplet and stay on fabric surface but do not spread on fabric surface or penetrate the fabric – a phenomenon known as “the lotus effect.” The efficiency of water repellency is graded in 5 ratings. A standard test is usually performed after five home launderings with water at 40℃. To qualify as water repellent, the fabric must perform to at least rating 4 (ISO), in other words, 90 or better efficiency (AATCC). Further tests for the durability of water repellency may be performed after 20, 50 or 100 launderings at similar temperatures. Water Repellent Textiles are well-suited to the face fabrics of windbreakers or other outerwear as well as umbrella fabrics, furnishing fabrics…etc.

With current technology in Taiwan, the initial water repellency of Water Repellent Textiles reaches 100 ; having undergone 100 launderings, their water repellency still reaches 80 or above. The test method employed is AATCC 22. The Optical Contact Angle of lotus leaf is 135°; fabrics processed by regular water repellent treatments can have an Optical Contact Angle up to 130°; fabrics processed by regular “nano super water repellent” treatments can have an Optical Contact Angle up to 140°. However, if we utilize a unique nanotechnology for functional textiles to modify the surface texture of fabrics, we will be able to impart an Optical Contact Angle up to 150° to the fabrics and surpass the technical level of most foreign countries as far as water repellency is concerned.

This criterion defines the evaluation and testing of water repellency textiles. It is applicable to textiles with water-repellent finishes. However it is not intended to measure penetration of water through the textiles.

FTTS-FA-013 Stain Release Textiles

Many materials that would permanently stain other materials are easily removed from Stain Release Textiles with only a laundering washing. Stain Release Textiles are made either by submerging or coating natural or synthetic fabrics in stain removal auxiliaries. Stain Release Textiles are commonly used in curtains, wall coverings, sofas, seat covers, windbreakers, aprons and many other applications.

Current technology in Taiwan for Stain Release Textiles achieves not less than rating 3.5.

This criterion defines the evaluation and testing of stain release textiles. It is applicable to measuring the ability of textile to release stain after home laundering.

Note 1 Washing condition should be according to AATCC 135(1)(III)(A)iii and washing cycles should bereferred to section 4.1 for durability consideration.

FTTS-FA-015 Flame-Resistant Textiles

With current technology in Taiwan, Flame-Resistant textiles have been able to meet the requirements of CPAI-84 and reach at least class 2 set forth in CNS10285. Phenomena measured are carbonized area, carbonized distance, after-flame time and after-glow time. The top grade for this test is Class 1 set forth in CNS10285.

Terminology:
2.1 Ignition time: The time for which the igniting flame is applied to a material.
2.2 After-flame time: The length of time for which a material continues to flame, under the specified test conditions, after the ignition source has been removed (also called duration of flame).
2.3 After-glow: Persistence of glowing combustion of a material under specified test conditions, after cessation of flaming or, if no flaming occurs, after removal of the ignition source.
2.4 After-glow time: The time for which a material continues to afterglow, under specified test conditions after cessation of flaming or after removal of the ignition source, ignoring glowing debris.
2.5 Carbonized area: The area of carbonized section.
2.6 Carbonized distance: The largest length of carbonized section.

This criterion defines the evaluation and testing of stain release textiles. It is applicable to measure the ability of textile to release stain after home laundering.

Ignition time: The time for which the igniting flame is applied to a material.

After-flame time: The length of time for which a material continues to flame, under the specified test conditions, after the ignition source has been removed (also called duration of flame).

After-glow: Persistence of glowing combustion of a material under specified test conditions, after cessation of flaming or, if no flaming occurs, after removal of the ignition source.

After-glow time: The time for which a material continues to afterglow, under specified test conditions after cessation of flaming or after removal of the ignition source, ignoring glowing debris.

Carbonized area: The area of carbonized section.

Carbonized distance: The largest length of carbonized section.

FTTS-FA-016
Charcoal Containing Filler Fiber Textiles for Warmth Retention

Download Test Method

Scope

This criterion is applicable to the evaluation and testing of products that use charcoal containing filler fiber textiles for warmth retention as a major feature, including various bedding products such as quilts, pillows and quilted bedspreads as well as various clothing products such as quilted jackets and quilted pants.

Note: The applicant must also provide a non charcoal containing filler fiber as the control specimen. The grade, composition and structure of the control specimen must be the same as those of the test specimen.

Terminology:

“Charcoal containing filler fiber textiles for warmth retention” refer to the products that claim warmth retaining effects through the incorporation of charcoal containing synthetic fibers as fillers, including various bedding products such as quilts, pillows and quilted bedspreads as well as various clothing products such as quilted jackets and quilted pants.

Performance specification

Qualified products under this criterion are classified into two types:

Type A:
Charcoal containing filler fiber textiles that meet the qualification requirements (as outlined in Table-1) for Far Infrared Features.

Table-1. Qualification requirements for charcoal containing filler fiber textiles that claim Far Infrared effects

Evaluation Qualification Requirements Qualitative Analysis of Charcoal Content Treat the fiber specimen based on CNS 2339 L3050 (Method of Test for Mixing Ration of Fibers Mixtures). Dissolve the synthetic components of the fiber. Collect the insoluble objects and observe them via SEM-EDX or micro-Raman spectroscopy; we shall be able to find the element carbon. Far Infrared Features Far Infrared Spectral Emissivity The stable average emissivity of light waves with the wavelength of 2~ 22Mm is not less than 0.80 as measured by Far Infrared spectrophotometer. Temperature Increasing Feature Difference in temperature between the test specimen and the control specimen is not less than 2 degrees Celsius. Must meet all requirements outlined above

Type A+:
Charcoal containing filler fiber textiles that meet the qualification requirements (as outlined in Table-2) for Far Infrared Features warmth retaining features.

Table-2. Qualification requirements for charcoal- containing filler fiber textiles that claim Far Infrared effects and warmth retaining effects

Evaluation Qualification Requirements Qualitative Analysis of Charcoal Content Treat the fiber specimen based on CNS 2339 L 3050 (Method of Test for Mixing Ration of Fibers Mixtures). Dissolve the synthetic components of the fiber. Collect the insoluble objects and observe them via SEM-EDX or micro-Raman spectroscopy; we shall be able to find the element carbon. Far Infrared Features Far Infrared Spectral Emissivity The stable average emissivity of light waves with the wavelength of 2~ 22Mm is not less than 0.80 as measured by far infrared spectrophotometer. Temperature Increasing Feature Difference in temperature between the test specimen and the control specimen is not less than 2 degrees Celsius. Warmth retaining Features Temperature Recorder Average difference in skin temperature of specific body part while wearing the test specimen as opposed to wearing the control specimen is not less than 0.5degrees Celsius. Thermograph Monitor Test Must meet all requirements outlined above

Referenced Standard:

• CNS 2339 L3050 Method of Test for Mixing Ration of Fibers Mixtures
• FTTA-FA-010 Certification Standard for Far Infrared Textiles

FTTS-FA-017 Deodorization for Charcoal Contained Filler Textiles

1.Scope

This requirement applies to the detector tube method for all deodorized textiles, main substances tested include ammonia, acetic acid, methyl mercaptan and hydrogen sulfate.

Remark: is deodorizing processing agent has safety considerations, applicant must include skin irritation (PII value⁽¹⁾＜2) or allergic (no allergic reaction) animal test report of the processing agent, and product additive’s acute oral toxicity LD₅₀ ( half lethal dose for mice at dose＞1000 mg/kg) original report from approved labs.

   Note⁽¹⁾: primary irritation index.

2.Quality

Table 1 Deodorizing performance (Detector tube method)

Remark: since it is a special request and not normally tested, hydrogen sulfide test must be noted in the report if requested by applicant.

3.Definition

3.1 Unpleasant odor

Unpleasant smell found in the living environment, such as toilet smell, sweat, body odor, (mixed with nonenal smell), fecal odor, etc.

3.2 Main chemical components of unpleasant odors

   Main chemical components of unpleasant smells found in the living environment are as follow:

-          Toilet smell: ammonia;

-          Sweat: ammonia, acetic acid and isovaleric acid;

Body odor (mixed with nonenal smell): ammonia, acetic acid, isovaleric acid and nonenal;

-          Fecal odor: ammonia, acetic acid, hydrogen sulfide, methyl mercaptan, indole.

3.3 Deodorized textile: possess the ability to reduce unpleasant smells around its environment.

3.4 Deodorization: the capacity of neutralizing unpleasant smells in the surroundings.

3.5 Deodorizing substance: a substance capable of neutralizing unpleasant smells.

This Standard is property of “Committee for Conformity Assessment on Accreditation and Certification of Functional and Technical Textiles”. Please remain the original meanings and contents when using and respect the intellectual property rights contented therein. The Standard may be amended through the issuance. Please use the current edition.

1. Scope

This requirement specifies the test method for light, heat-retaining, heat-generating by moisture absorbing fabrics which weight less than 200 grams per square meter.

2. Definition

2.1 Generate heat by moisture absorption: the fiber material absorbs the gaseous water molecules from the body surface of the air moisture (humidity), condenses them into liquid water molecules, so that textile temperature rises.

3. Quality

3.1 Eligibility criteria

  Average heating value at    30 minutes ( ) ³ 0.8 ℃, and highest heating value ( )³ 2.5 ℃

1.     Applicable Scope:

This Standard applies for assessment and test method of basic quality and functional requirement for jogging clothing (see appendix).

2.     Grade Standard:

2.1 Basic quality requirements

Table 1.  Basic quality requirements

Remark (1). The functional color like fluorescence, light reflection or special color decided by the interested parties.

Remark (2). Moisture absorption - the drop method is graded by the averaged value of "no special reflection time".

2.2 Functional requirements

2.2.1Textile air-permeability

        The air-permeability reaches over180mm/sec under the test area20cm2 and pressure 100Pa.

2.2.2UV protection

        The UV protection factor (UPF) for textile reaches over 25 according to CNS 15001 after washed 20 times (in compliance with 2.3).

2.2.3Textile antibacterial

        The antibacterial activity for textile (staphylococcus aureus and streptococcus pneumoniae) reaches over 2.0 according to CNS 20743 after washed 20 times (method and agent in compliance with 2.3 and 3.2 (10) of CNS 14945).

2.2.4Test method for moisture conduction

Table 2. Grade for textile moisture conduction

2.3 Wash Durability

Table 3. Wash durability

   Remark: The wash durability not only includes wash 20 times, but also can be decided by the interested parties.

3. Test Method:

    3.1 Test method for wash durability: In compliance with A-2 of CNS 1494.

    3.2 Test method for dirt durability: In compliance with CNS 1496.

    3.3 Test method for scratch durability: In compliance with Type I of CNS 1499.

    3.4 Test method for light durability: In compliance with method A of CNS 3846.

    3.5 Test method for textile size change: In compliance with CNS13752Gand CNS8038Gfor the knits and the weaves.

    3.6 Seam efficiency: The seam efficiency is calculated according to the following formula after the strength is tested in compliance with 6.2 Test method for seam efficiency of CNS 15538 and 6.2 Breakage method of CNS 8150.

         Seam efficiency = Strength after seam/Original strength x 100%

3.7 Test of textile moisture diffusion: In compliance with 4.1 to 4.3 of CNS 15659-1.

   3.8 Test of textile moisture drying: In compliance with 4.1, 4.2 and 4.4 of CNS 15659-1.

   3.9 Test of textile moisture absorption - drop absorption: In compliance with 4.5 of CNS 15659-1.

   3.10 Test of textile moisture absorption - core absorption: In compliance with 4.6 of CNS 15659-1.

   3.11 Test method for textile air-permeability: In compliance with CNS 5612.

   3.12 Assessment of UV protection textiles: In compliance with CNS 15001.               

3.13 Test method for textile antibacterial: In compliance with 8.1 Absorption method in ISO 20743.

3.14 Test method for moisture conduction:  In compliance with5.4 inCNS 15659-2.

4. Report:

   4.1 Grade of basic quality

   4.2 Grade of functional requirement

5. References:

     CNS 15538      Knitted sport clothing

     CNS 15659-1     Assessment of textile moisture absorption - Part 1: Combination test method

     CNS 15659-2     Assessment of textile moisture absorption - Part 2: Test method for moisture conduction

     CNS 5612       Test method for textile air-permeability

     GB/T 21980      Specified standard of sport clothing and protection utility

     CNS 15001      Assessment of UV protection textiles

     ISO 20743       Textile - 8.1 Absorption method for determination of antibacterial activity of textile products

     CNS 14945      Assessment of general-purpose antibacterial textiles

6. Appendix

  This Standard is reviewed by the Specified Requirement Execution Team, and issued after approved by the Committee Director. The same procedures are applied when revised.

This Standard applies to formal shirts and garments worn in the office during summertime, and the test methods and quality requirements to assess whether such clothing has the properties of feeling cool and comfortable so as to achieve the purpose of saving air-conditioning energy.     

3.1 Criteria：

Clothing’s PPD: Below 20%, to meet the energy-saving requirement