GB/T 38462-2020 PDF English
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivery | Name of Chinese Standard | Status |
| GB/T 38462-2020 | English | 115 |
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Textiles - Nonwoven fabrics for isolation gowns
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GB/T 38462-2020: Textiles - Nonwoven fabrics for isolation gowns---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/GBT38462-2020
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 59.080.30
W 59
Textiles - Nonwoven fabrics for isolation gowns
ISSUED ON: MARCH 06, 2020
IMPLEMENTED ON: OCTOBER 01, 2020
Issued by: State Administration for Market Regulation;
Standardization Administration of the PRC.
Table of Contents
Foreword ... 3
1 Scope ... 4
2 Normative references ... 4
3 Product grading ... 5
4 Technical requirements ... 5
5 Test methods ... 7
6 Inspection rules ... 8
7 Packaging, marking, and storage and transportation ... 10
Textiles - Nonwoven fabrics for isolation gowns
1 Scope
This Standard specifies the product grading, technical requirements, test
methods, inspection rules, packaging, marking, storage and transportation of
nonwoven fabrics for isolation gowns.
This Standard applies to nonwoven fabrics for disposable isolation gowns worn
by medical and visiting personnel.
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 4666 Textiles - Fabrics - Determination of width and length
GB/T 7742.1 Textiles - Bursting properties of fabrics - Part 1: Hydraulic
method for determination of bursting strength and bursting distension
GB/T 12703.4 Textile - Evaluation for electrostatic properties - Part 4:
Resistivity
GB/T 12704.1-2009 Textiles - Test method for water-vapour transmission of
fabrics - Part 1: Desiccant method
GB 15979-2002 Hygienic standard for disposable sanitary products
GB 19082-2009 Technical requirements for single-use protective clothing for
medical use
GB/T 24218.1 Textiles - Test methods for nonwovens - Part 1: Determination
of mass per unit area
GB/T 24218.3 Textiles - Test methods for nonwovens - Part 3: Determination
of tensile strength and elongation (strip method)
GB/T 24218.16 Textiles - Test methods for nonwovens - Part 16:
Determination of resistance to penetration by water (hydrostatic pressure)
GB/T 24218.17 Textiles - Test methods for nonwovens - Part 17:
Determination of resistance to penetration by water (spray impact)
YY/T 0689-2008 Clothing for protection against contact with blood and body
fluids - Determination of resistance of protective clothing materials to
penetration by blood-borne pathogens - Test method using Phi-X174
bacteriophage
3 Product grading
Nonwoven fabrics for isolation gowns, according to their intrinsic quality
requirements, are divided into grades I, II, III, and IV. The protective
performance is gradually improved.
Note: Grade I - Isolation gowns generally used for purposes such as visiting, cleaning.
Grade II - Isolation gowns generally used for routine care and examination.
Grade III - Isolation gowns which are generally used when a patient has a certain
amount of bleeding and fluid secretions.
Grade IV - Reinforced isolation gowns which are generally used for prolonged or
heavy exposure to patients' blood, body fluids, or for cleaning medical waste.
4 Technical requirements
4.1 Intrinsic quality
The intrinsic quality of the nonwoven fabrics for isolation gowns shall comply
with the provisions in Table 1.
Note: When more than two drops of water appear at a certain position during the test but
do not affect the judgment of water drops in other parts, pressurization can be
continued, until the end of the test.
5.4 The determination of resistance to microbial penetration shall be carried out
in accordance with procedure A or procedure B of YY/T 0689-2008. The
minimum value is used as the test result.
5.5 The determination of anti-synthetic blood penetration is conducted
according to Appendix A of GB 19082-2009. The minimum value is used as the
test result.
5.6 The determination of bursting strength is carried out according to GB/T
7742.1. The test area is 7.3 cm2.
5.7 The determination of tensile strength is carried out in accordance with the
provisions of GB/T 24218.3.
5.8 The determination of water-vapour transmission rate is performed
according to the conditions in a) of GB/T 12704.1-2009.
5.9 The determination of antistatic property (surface resistivity) is performed in
accordance with GB/T 12703.4.
5.10 The determination of microorganisms is carried out in accordance with the
provisions of Appendix B of GB 15979-2002.
5.11 The determination of width is in accordance with GB/T 4666.
5.12 The color difference is evaluated according to GB/T 250.
5.13 The inspection of appearance defects is mainly based on the front of the
product. The inspection shall be carried out on a horizontal inspection table.
USE normal daylight northern light or fluorescent lamp to illuminate. The table
illumination is not less than 600 lx. The distance between the eyes and the table
is about 60 cm.
6 Inspection rules
6.1 Provision for lot grouping
The products of the same variety and the same specification according to the
delivery lot number are regarded as one inspection lot.
6.2 Sampling
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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