GB/T 18886-2019 English PDF (GB/T 18886-2002)

GB/T 18886-2019_English: PDF (GB/T18886-2019)
Standard IDUSDBUY PDFLead-DaysStandard Title (Description)Status
GB/T 18886-201985 Add to Cart Auto, < 3 mins Textiles -- Tests for colour fastness -- Colour fastness to saliva Valid
GB/T 18886-200270 Add to Cart Auto, < 3 mins Textiles -- Tests for fastness -- Colour fastness to saliva Obsolete

BASIC DATA
Standard ID GB/T 18886-2019 (GB/T18886-2019)
Description (Translated English) Textiles -- Tests for colour fastness -- Colour fastness to saliva
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard W04
Classification of International Standard 59.080.01
Word Count Estimation 6,636
Date of Issue 2019-06-04
Date of Implementation 2020-01-01
Drafting Organization China Textile Standard Inspection and Certification Co., Ltd., Shenzhen Beilishuang Industrial Co., Ltd., Haosha Industrial (Fujian) Co., Ltd., Lufeng Weaving and Dyeing Co., Ltd., China National Accreditation Center for Conformity Assessment
Administrative Organization National Textile Standardization Technical Committee (SAC/TC 209)
Proposing organization China National Textile and Apparel Council
Issuing agency(ies) State Administration for Market Regulation, China National Standardization Administration

BASIC DATA
Standard ID GB/T 18886-2002 (GB/T18886-2002)
Description (Translated English) Textiles - Tests for fastness - Colour fastness to saliva
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard W04
Classification of International Standard 59.080.01
Word Count Estimation 5,517
Date of Issue 2002/11/22
Date of Implementation 2003/3/1
Quoted Standard GB 250; GB 251; GB/T 3922; GB 7564; GB 7565; GB 7566; GB 7567; GB 7568; GB 11404
Drafting Organization Textile Industry Standardization Institute
Administrative Organization National Standardization Technical Committee of textiles
Proposing organization China Textile Industry Association
Issuing agency(ies) General Administration of Quality Supervision, Inspection and Quarantine of the People Republic of China
Summary This Standard specifies Test methods for color fastness of a saliva-resistant textiles. This Standard is applicable to all kinds of textiles.


GB/T 18886-2019 NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 59.080.01 W 04 Replacing GB/T 18886-2002 Textiles - Tests for colour fastness - Colour fastness to saliva ISSUED ON: JUNE 04, 2019 IMPLEMENTED ON: JANUARY 01, 2020 Issued by: State Administration for Market Regulation; Standardization Administration of the PRC. Table of Contents Foreword ... 3  1 Scope ... 5  2 Normative references ... 5  3 Principle ... 6  4 Equipment and materials ... 6  5 Samples ... 8  6 Operating procedures ... 9  7 Test report ... 10  Textiles - Tests for colour fastness - Colour fastness to saliva 1 Scope This Standard specifies the test method for the determination of the colour fastness to saliva of textiles. This Standard applies to all kinds of textiles. 2 Normative references The following documents are indispensable for the application of this document. For the dated references, only the editions with the dates indicated are applicable to this document. For the undated references, the latest edition (including all the amendments) are applicable to this document. GB/T 250 Textiles - Tests for colour fastness - Grey scale for assessing change in colour GB/T 251 Textiles - Tests for colour fastness - Grey scale for assessing staining GB/T 6151 Textiles - Tests for colour fastness - General principle of testing GB/T 6682 Water for analytical laboratory use - Specification and test methods GB/T 7568.1 Textiles - Tests for colour fastness - Specification for wool adjacent fabric GB/T 7568.2 Textiles - Tests for colour fastness - Standard adjacent fabrics - Part 2: Cotton and viscose GB/T 7568.3 Textiles - Tests for colour fastness - Standard adjacent fabrics - Part 3: Polyamide GB/T 7568.4 Textiles - Tests for colour fastness - Specification for polyester adjacent fabric GB/T 7568.5 Textiles - Tests for colour fastness - Specification for acrylic adjacent fabric Other devices which can achieve the same result can be used. 4.2 Thermostat KEEP the temperature at (37±2) °C. 4.3 Artificial saliva 4.3.1 Formula composition The reagents used are chemically pure. USE Grade 3 water (4.12) to prepare the test solution. Prepared when used. Each liter of test solution contains: Magnesium chloride hexahydrate (MgCl2 • 6H2O) 0.17 g Calcium chloride dihydrate (CaCl2 • 2H2O) 0.15 g Dipotassium hydrogen phosphate trihydrate (K2HPO4 • 3H2O) 0.76 g Potassium carbonate (K2CO3) 0.53 g Sodium chloride (NaCl) 0.33 g Potassium chloride (KCl) 0.75 g USE hydrochloric acid solution with a mass fraction of 1% to adjust the pH of the test solution to 6.8±0.1. 4.3.2 Preparation method DISSOLVE the prescribed amount of sylvite and sodium salts in 900 mL of Grade 3 water (4.12); ADD magnesium chloride and calcium chloride and stir until they are completely dissolved. Immerse the calibrated pH meter (4.11) electrode in the solution; ADD slowly 1% hydrochloric acid solution; STIR gently to make the solution pH reach 6.8±0.1. ADD Grade 3 water (4.12) to dilute to 1000 mL; SHAKE well and store in the dark. 4.4 Adjacent fabric (See GB/T 6151) Choose any one of 4.4.1 and 4.4.2. 4.4.1 A multifibre adjacent fabric shall conform to GB/T 7568.7. 4.4.2 Two single-fibre adjacent fabrics shall conform to GB/T 7568.1~7568.6, GB/T 7568.8, GB/T 13765. a) TAKE a piece of sample of (100±2)mm×(40±2)mm; CONTACT the front to a piece of (100±2)mm×(40±2)mm multifibre adjacent fabric (4.4.1). Sew along a short side to form a combined sample. b) TAKE a piece of sample of (100±2)mm×(40±2)mm and sandwich it between two (100±2)mm×(40±2)mm single-fibre adjacent fabrics (4.4.2). Sew along a short side to form a combined sample. 5.2 For yarn or loose-fibre samples, the mass of yarn or loose fibre taken is approximately equal to half the total mass of the adjacent fabric. According to one of the following methods, prepare a combined sample: a) SANDWICH it between a piece of (100±2)mm×(40±2)mm multifibre adjacent fabric and a piece of (100±2)mm×(40±2)mm non-dyeable fabric (4.4.3). Sew along the four sides (See GB/T 6151) to form a combined sample. b) SANDWICH it between two prescribed (100±2)mm×(40±2)mm single-fibre adjacent fabrics. Sew along the four sides to form a combined sample. 6 Operating procedures 6.1 At room temperature, the combined sample is placed flat in a flat-bottomed container (4.10). Inject artificial saliva (4.3) to completely wet it at a bath ratio of 50:1. PLACE it at room temperature for 30 min. From time to time, PRESS down and stir, to ensure that the test solution can penetrate fully and evenly. TAKE the sample out; POUR off residual solution; USE a suitable method (such as two glass rods) to clip the excess test solution off the combined sample. The combined sample is placed flat between two glass or acrylic acid resin plates (4.9) and placed in test devices (4.1) to be pressurized (12.5±0.9)kPa. Note: A maximum of 10 combined samples can be placed simultaneously for each test device. Each sample is separated by a plate (11 pieces in total). If less than 10 samples, 11 plates are still used, to keep the pressure constant. 6.2 PLACE the test devices (4.1) with the combined sample in the thermostat (4.2); HOLD at (37±2)°C for 4 h; PLACE the test devices (4.1) horizontal (Figure 1) or vertical (Figure 2). ......


GB/T 18886-2002 GB ICS 59. 080. 01 W 04 NATIONAL STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA Textiles - Tests for Fastness – Colour Fastness to Saliva ISSUED ON. NOVEMBER 22, 2002 IMPLEMENTED ON. MARCH 1, 2003 Jointly Issued by. General Administration of Quality Supervision, Inspection and Quarantine (AQSIQ); Standardization Administration (SAC) of the People's Republic of China. Table of Contents FOREWORD ... 3  1 SCOPE ... 4  2 NORMATIVE REFERENCES ... 4  3 PRINCIPLES ... 4  4 REAGENTS AND MATERIALS ... 5  5 INSTRUMENTS ... 5  6 SAMPLE PREPARATION ... 6  7 PREPARATION OF THE TEST SOLUTION ... 6  8 OPERATION PROCEDURE ... 6  9 TEST REPORT ... 7  Foreword This Standard was proposed by China National Textile and Apparel Council. This Standard shall be under the jurisdiction of the National Textile Standardization Technical Committee. This Standard is responsibly drafted by Standardization Institute of Textile Industry Chief drafting staffs of this Standard. Li Zhen, and Li Chun. This Standard is issued for the first time. Textiles - Tests for Fastness – Colour Fastness to Saliva 1 Scope This Standard specifies a test method for colour fastness to saliva of textile. This Standard is applicable to various type of textiles. 2 Normative References The following documents contain provisions which, through reference in this Standard, constitute provisions of this Standard. For dated reference, subsequent amendments (excluding corrections) or revisions of these publications do not be applied. However, the parties who enter into agreement according to these specifications are encouraged to research whether the latest editions of these references are applied or not. For undated references, the latest edition of the normative document is applicable to these specifications. GB 250 Grey scale for assessing change in colour (idt ISO 105/A02) GB 250 Grey scale for assessing staining (idt ISO 105/A03) GB/T 3922 Textiles - Testing method for colour fastness to perspiration (eqv ISO 105/E04) GB 7564~7568 Textiles - Tests for colour fastness - Specification for standard adjacent fabric (neq ISO 105/F) GB 11404 Textiles - Tests for colour fastness - Specification for standard adjacent fabric. Multi-fiber (neq ISO/DIS 105/F10) 3 Principles Adhere the specimen and the specified adjacent fabric together; remove the test solution after the treatment in artificial saliva; place it between two pieces of flat plates inside the test equipment; apply the specified pressure; then dry the specimen and adjacent fabric respectively; evaluate the discolouration of the specimen and staining of the adjacent fabric. 12.5kPa. 8.2 Put the instrument with composite-specimen in the thermo-tank. Place it for 4h at the temperature of 37°C ± 2°C. 8.3 Remove all the sutures on the composite-specimen except one short side. Unfold the composite-specimen; and hang it at the temperature of not exceeding 60°C for drying. 8.4 Use grey scale to evaluate the discolouration of the specimen and the staining of one side of the adjacent fabric that is contacted with the specimen. 9 Test Report Respectively make reports on the change in colour of the specimen AND the staining level of each kind of adjacent fabrics. ......


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