GB/T 30127-2013 PDF English
US$145.00 · In stock · Download in 9 secondsGB/T 30127-2013: Textiles - Testing and evaluation for far infrared radiation properties Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedureStatus: Valid
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivery | Name of Chinese Standard | Status |
| GB/T 30127-2013 | English | 145 |
Add to Cart
|
0-9 seconds. Auto-delivery
|
Textiles - Testing and evaluation for far infrared radiation properties
| Valid |
Excerpted PDFs (Download full copy in 9 seconds upon purchase)PDF Preview: GB/T 30127-2013
GB/T 30127-2013: Textiles - Testing and evaluation for far infrared radiation properties---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT30127-2013
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 59.080.01
W 04
Textiles - Testing and evaluation for far infrared
radiation properties
Issued on. DECEMBER 17, 2013
Implemented on. DECEMBER 01, 2014
Issued by. General Administration of Quality Supervision, Inspection and
Quarantine;
Standardization Administration of PRC.
Table of Contents
Foreword... 3
1 Scope... 4
2 Normative references... 4
3 Terms and definitions... 4
4 Principle... 4
5 Instruments and tools... 5
6 Test environment and preparation... 7
7 Test procedure... 8
8 Result calculation and evaluation... 9
9 Test report... 10
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard was proposed by the China National Textile and Apparel Council.
This standard shall be under the jurisdiction of the Basic Standards
Subcommittee of the National Textile Standardization Technical Committee
(SAC/TC 209/SC 1).
Drafting organizations of this standard. National Textile Products Quality
Supervision and Inspection Center, Taicang Jinhui Chemical Fiber Industrial
Co., Ltd., Zhuhai Zhaotian Trading Co., Ltd.
The main drafters of this standard. Yan Chunhong, Wu Jianchun, Wang Baojun,
Shang Ling, Tan Hui, Xi Bin.
Textiles - Testing and evaluation for far infrared
radiation properties
1 Scope
This standard specifies the method for measuring the far-infrared radiation
property of textiles by the far-infrared emissivity and temperature rise test; gives
the evaluation of the far-infrared radiation property.
This standard applies to all types of textile products, including fibers, yarns,
fabrics, non-woven fabrics and their products. Other materials can refer to it.
This standard does not involve the evaluation of medical effects.
2 Normative references
The following documents are essential to the application of this document. For
the dated documents, only the versions with the dates indicated are applicable
to this document; for the undated documents, only the latest version (including
all the amendments) is applicable to this standard.
GB/T 6529 Textiles - Standard atmospheres for conditioning and testing
GB/T 8629-2001 Textiles - Domestic washing and drying procedures for
textile testing
3 Terms and definitions
The following terms and definitions apply to this document.
3.1
Far infrared emissivity
The ratio of the normal far-infrared radiation intensity between the specimen
and the standard blackbody plate at the same temperature under specified
conditions.
4 Principle
4.1 Determination of far-infrared emissivity
Place the standard blackbody plate and the specimen on the hot plate one after
the other; adjust the surface temperature of the hot plate to the specified
temperature in turn.
4.2 Determination of temperature rise
After the far-infrared radiation source irradiates the specimen at a constant
radiation intensity for a certain period of time, measure the temperature rise
value of the test surface of the specimen.
5 Instruments and tools
5.1 Far-infrared emissivity test device. The schematic diagram of the textile far-
infrared emissivity tester is as shown in Figure 1.The main parameters shall
meet the following conditions.
5.2 Far-infrared radiation temperature rise detection device. All components are
installed on a stable frame. The schematic diagram of the structure is as shown
in Figure 2.The main parameters shall meet the following conditions.
5.3 An open cylindrical metal container which has a diameter of 60 mm and a
height of 30 mm.
5.4 For the yarn specimen frame, the effective test size shall not be less than
the size of test hot plate.
6 Test environment and preparation
6.1 Specimen humidity conditioning and environmental requirements
The humidity shall be conditioned in accordance with the standard atmospheric
temperature and humidity environment and procedures as specified in GB/T
6529; there shall be no other heat radiation sources affecting it.
6.2 Pretreatment
6.3 Preparation of specimen
6.3.1 Fiber
When measuring the far-infrared emissivity, open the fiber specimen into a fluffy
state; take 0.5 g of fiber and fill it into an open cylindrical metal container which
has a diameter of 60 mm and a height of 30 mm. The fiber is completely filled
in the container; take at least 3 specimens from each set of sample. When
determining the temperature rise, comb the fibers into a fluffy state; evenly
spread it to a uniform cylindrical flocculus which has a thickness of about 30
mm and a diameter of more than 60 mm. Take at least 3 specimens from each
set of samples.
6.3.3 Sheet samples such as fabrics
Cut at least 3 specimens for emissivity and temperature rise from each sample.
The size of the specimen is not less than 60 mm in diameter. The specimen
shall be flat and representative when sampling.
7 Test procedure
7.1 Determination of far-infrared emissivity
7.1.1 Heat the test hot plate to 34 °C
7.1.2 Place the standard blackbody plate on the test hot plate; record the far-
infrared radiation intensity of the standard blackbody I0 after the test value is
stable.
7.1.4 Test the remaining specimens according to the steps in 7.1.3.
7.2 Test of far-infrared radiation temperature rise
7.2.1 Adjust the distance between the specimen holder and the radiation source,
so that the distance between the specimen surface and the radiation source is
500 mm.
7.2.2 Clamp the test surface of the humidity-conditioned specimen in the
specimen holder facing the infrared radiation source. Fix the contact of the
thermometer sensor at the center of the surface of the irradiated area of the
specimen.
7.2.3 Record the initial temperature of the sample surface T0.
8 Result calculation and evaluation
8.1 Result calculation
8.1.1 Measure the far-infrared radiation intensity of the standard blackbody
plate and the specimen according to 7.1; calculate the far-infrared emissivity of
each specimen according to formula (1); calculate the average value of the far-
infrared emissivity of all specimens as the test result, round it off to 0.01.
Where.
8.1.2 According to the measured results in 7.2, calculate the temperature rise
of each specimen surface according to formula (2); calculate the average
temperature rise of all specimens as the test result; round it off to 0.1 °C.
8.2 Evaluation of far-infrared properties of textiles
For ordinary samples, if the far-infrared emissivity of the specimen is not less
than 0.88 and the temperature rise of far-infrared radiation is less than 1.4 °C,
the sample has far-infrared properties. For loose samples such as flakes,
nonwovens, fleece, the far-infrared emissivity is not less than 0.83, meanwhile
the temperature rise of far-infrared radiation is not less than 1.7 °C, the
specimens have far-infrared properties.
9 Test report
The test report shall include the following.
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
Tips & Frequently Asked QuestionsQuestion 1: How long will the true-PDF of English version of GB/T 30127-2013 be delivered?Answer: The full copy PDF of English version of GB/T 30127-2013 can be downloaded in 9 seconds, and it will also be emailed to you in 9 seconds (double mechanisms to ensure the delivery reliably), with PDF-invoice. Question 2: Can I share the purchased PDF of GB/T 30127-2013_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 30127-2013_English will be deemed to be sold to your employer/organization who actually paid for it, including your colleagues and your employer's intranet. Question 3: Does the price include tax/VAT?Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countriesQuestion 4: Do you accept my currency other than USD?Answer: Yes. www.ChineseStandard.us -- GB/T 30127-2013 -- Click this link and select your country/currency to pay, the exact amount in your currency will be printed on the invoice. Full PDF will also be downloaded/emailed in 9 seconds. How to buy and download a true PDF of English version of GB/T 30127-2013?A step-by-step guide to download PDF of GB/T 30127-2013_EnglishStep 1: Visit website https://www.ChineseStandard.net (Pay in USD), or https://www.ChineseStandard.us (Pay in any currencies such as Euro, KRW, JPY, AUD).
Step 2: Search keyword "GB/T 30127-2013".
Step 3: Click "Add to Cart". If multiple PDFs are required, repeat steps 2 and 3 to add up to 12 PDFs to cart.
Step 4: Select payment option (Via payment agents Stripe or PayPal).
Step 5: Customize Tax Invoice -- Fill up your email etc.
Step 6: Click "Checkout".
Step 7: Make payment by credit card, PayPal, Google Pay etc. After the payment is completed and in 9 seconds, you will receive 2 emails attached with the purchased PDFs and PDF-invoice, respectively.
Step 8: Optional -- Go to download PDF.
Step 9: Optional -- Click Open/Download PDF to download PDFs and invoice.
See screenshots for above steps: Steps 1~3 Steps 4~6 Step 7 Step 8 Step 9
|