GB/T 13758-2008 PDF English
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivery | Name of Chinese Standard | Status |
| GB/T 13758-2008 | English | 170 |
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Viscose filament yarn
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| GB/T 13758-1992 | English | 519 |
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Viscose filament yarn
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GB/T 13758-2008: Viscose filament yarn---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/GBT13758-2008
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 59.060.20
W 52
Replacing GB/T 13758-1992
Viscose filament yarn
Issued on. AUGUST 06, 2008
Implemented on. JUNE 01, 2009
Issued by. General Administration of Quality Supervision, Inspection and
Quarantine;
Standardization Administration of the People's Republic of
China.
Table of Contents
Foreword... 3
1 Scope... 4
2 Normative references... 4
3 Terms and definitions... 5
4 Product classification and marks... 5
5 Technical requirements... 6
6 Test methods... 6
7 Inspection rules... 8
8 Reinspection rules... 9
9 Marks, packaging, transportation and storage... 10
Annex A (normative) Inspection methods for appearance defects of viscose
filament yarn... 12
1 Scope
This Standard specifies the requirements for product classification, technical
requirements, test methods, inspection rules and marks, packaging,
transportation, and storage of viscose filament yarn.
This Standard is applicable to the viscose filament yarn that is produced from
cotton pulp or wood pulp.
This Standard is applicable to the authentication and acceptance of the viscose
filament yarn of which the linear density is at 66.7dtex~333.3dtex. Dope colored
silk, the ones of which the linear density is below 66.7dtex and above 333.3dtex
can refer to this Standard as reference.
2 Normative references
The provisions in following documents become the provisions of this Standard
through reference in this Standard. For dated references, the subsequent
amendments (excluding corrigendum) or revisions do not apply to this Standard,
however, parties who reach an agreement based on this Standard are
encouraged to study if the latest versions of these documents are applicable.
For undated references, the latest edition of the referenced document applies.
GB/T 250, Textiles - Tests for colour fastness - Grey scale for assessing
change in colour
GB/T 1250, Rules for expression and judgement of limiting values
GB/T 3291.1, Textiles - Terms of textile material properties and test - Part 1.
Fibre and yarn
GB/T 3291.3, Textiles - Terms of textile material properties and test - Part 3.
General
3 Terms and definitions
For the purposes of this document, the terms and definitions defined in GB/T
3291.1, GB/T 3291.3 and GB/T 4146 as well as the followings apply.
3.1 product lot
The serial production batch number with same raw materials, chemical
materials, auxiliary materials, process conditions and product specifications.
4 Product classification and marks
4.1 According to the different amount of matting agent or color paste added
during production, viscose filament yarn is divided into shiny yarn, matting yarn,
and colored yarn.
4.2 Product specifications are expressed by linear density (dtex) and number
of filaments (f).
4.3 The product model is identified by the pulp, product specifications and
production process used in production.
5 Technical requirements
5.1 Product grading
Viscose filament yarn is graded as excellent, first-class, and qualified products.
Those that are lower than qualified products are out-of-class products.
5.2 Physical and mechanical properties and dyeing performance
6 Test methods
6.1 General rules for test
6.1.2 Sample preparation
6.1.2.1 Preparation of samples for measuring physical and mechanical
properties
6.2 Linear density and number of filaments
Strip the surface silk of each laboratory sample, in accordance with GB/T 14343.
6.3 Breaking strength and breaking elongation
Strip the surface silk of each laboratory sample, in accordance with GB/T 14344.
6.4 Twist
In accordance with GB/T 14345.
6.5 Residual sulfur
In accordance with FZ/T 50014.
6.6 Dyeing uniformity
In accordance with FZ/T 50015.Conduct rating according to GB/T 250.
6.7 Moisture regain
In accordance with GB/T 6503.
6.8 Oil content
In accordance with GB/T 6504.
6.9 Rounding-off
In accordance with GB/T 8170.
7 Inspection rules
7.1 Inspection type
All items in Table 1 are exit-factory inspection items.
7.2 Inspection items
7.2.1 The performance items shall be in accordance with the requirements of
Table 1 and shall be inspected according to the test methods specified in Clause
6.
7.3 Batching rules
Use periodic sampling to form a test lot within a certain range. A product lot can
consist of one test lot or several test lots.
7.4 Sampling regulations
7.4.1 The laboratory sample sampling of each test item in Table 1 shall be
7.5 Result evaluation
7.5.1 The grades for the physical and mechanical properties and dyeing and
chemical properties of a lot of products are conducted item by item according
to Table 1.
7.5.2 The appearance quality of each silk tube, silk skein, and silk cake in a lot
of products is graded based on Table A.1, Table A.2, Table A.3 in Annex A item
by item. The grades are respectively according to the rounding value
comparison method in GB/T 1250.The lowest grade is used as the grade of
each filament tube in this lot.
7.5.3 The grade of each silk tube (twist, cake) in a lot of products is determined
according to the lowest grade among the evaluation results of physical and
mechanical properties, dyeing properties and appearance defects.
8 Reinspection rules
8.1 When the shipment arrives at the consignee, check whether the outer
packaging quality, number of pieces, and net quality of the package are
consistent with the manifest.
8.2 Within three months, if the product performance quality is found to be
inconsistent with the quality report, it can be submitted for re-inspection. If more
than one-third of this lot of products is used, no re-inspection is allowed.
8.5 The batching shall be conducted according to the original product lot during
reinspection.
8.6 The sampling method during the reinspection shall be carried out according
to the sampling method in GB/T 6502.
8.7 The reinspection can be conducted by the manufacturer and the user
together for sampling and testing, or it can be arbitrated by the legal inspection
agency. The evaluation of the reinspection result shall be implemented
according to the evaluation method in 7.5.
8.8 The reinspection result is the final result. The manufacturer is no longer
responsible for this lot after the reinspection process.
8.9 When checking and accepting, the public mass calculation is as formula (1),
formula (2).
9 Marks, packaging, transportation and storage
9.1 Marks
9.1.1 Marks on the box. printing factory name, factory address, trademark,
product name, product standard number, moisture-proof, sun-proof, front and
back signs and handling requirements and so on.
9.2 Packaging
9.2.1 The viscose filament yarn products are divided into tube, skein and cake.
The weight of the same lot of products, the weight of the tube, the skein and
the cake shall be consistent.
9.2.2 The packaging of the product shall be firm, safe, moisture-proof and easy
to transport to ensure that the product is not damaged.
9.2.4 The moisture regain rate of the product during packaging shall be within
8%~15%. When exceeding, the humidity shall be adjusted to the specified
range before packaging.
9.3 Transportation
Handle with care during transportation. Prohibit damage to the outer packaging
and moisture.
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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