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GB/T 19413-2010Unitary air-conditioners for computer and data processing room (English PDF)

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Issued by

Ministry of Industry and Information Technology of PRC

Level / Type

National · Recommended

Issue date

December 20, 2023

Implementation date

July 1, 2024

Scope

GB/T 19413-2010 (Unitary air-conditioners for computer and data processing room) is available as an English-translated PDF.

GB/T 19413-2010 — This document specifies the requirements for dimensional deviation, fabric, physical properties, etc. of foam mattresses; describes the corresponding test methods; specifies the inspection rules, marking, instructions for use, packaging, transportation and storage; provides symbols and product classifications that facilitate technical provisions.

This document is applicable to the quality inspection and quality determination of foam mattresses with a thickness of not less than 130 mm; it is used as a reference for foam mattresses with a thickness of less than 130 mm.

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Document preview — GB/T 19413-2010

National Standard of the People's Republic of China

ICS: 97.140

Issued by: Ministry of Industry and Information Technology of PRC

Foreword...3
1 Scope...5
2 Normative references...5
3 Terms, definitions, symbols...6
4 Product classification...7
5 Requirements...8
6 Test method...10
7 Inspection rules...14
8 Marking, instructions for use, packaging, transportation, storage...16
References...18

Foreword

This document was drafted in accordance with the provisions of GB/T 1.1-2020

"Directives for standardization - Part 1.Rules for the structure and drafting of

standardizing documents".

This document replaces QB/T 4839-2015 "Upholstered furniture - Foam mattress".

Compared with QB/T 4839-2015, in addition to structural adjustments and editorial

changes, the main technical changes are as follows.

a) ADD the requirements for zippers (see Table 3 No.19, 20, 21, 22);

b) ADD the requirements for textile fabric physicochemical properties. pilling

performance requirements (see Table 3 No.23);

c) ADD the physical properties of soft polyurethane foam plastic core material.

compression permanent deformation (see Table 3 No.26);

d) CHANGE the physical properties of slow-rebound soft polyurethane foam plastic

core material. recovery time (see Table 3 No.36; Table 3 No.25 of the 2015

edition);

e) ADD the latex core material composition and heavy metal content (see Table 3

No.41, 42);

f) CHANGE the indicator requirements and test methods of mattress formaldehyde

emission (see Table 3 No.44 and 6.19; Table 3 No.36 and 6.15 of the 2015 edition);

g) ADD the mattress benzene emission, toluene emission, xylene (sum of o-, m-, p-)

emission, total volatile organic compound (TVOC) emission (see Table 3 No.45,

46, 47, 48);

h) CHANGE the mite inhibition rate (see Table 3 No.50; Table 3 No.38 of the 2015

edition);

i) ADD the durability (edge) grading (see Table 3 No.52);

j) ADD the odor (see Table 3 No.53).

This document was proposed by China Light Industry Federation.

This document shall be under the jurisdiction of the National Technical Committee for

Furniture Standardization (SAC/TC 480).

Drafting organizations of this document. Guangdong Dongguan Quality Supervision

and Inspection Center, De Rucci Healthy Sleep Co., Ltd., Shanghai Quality Supervision

and Inspection Technology Research Institute, Zhejiang Mengshen Home Furnishing

Co., Ltd., Shenzhen Yuanchao Smart Life Co., Ltd., Shenzhen Inspection Group

(Zhejiang) Quality Technology Service Co., Ltd., Guangdong Product Quality

Supervision and Inspection Institute, Xilinmen Furniture Co., Ltd., Shanghai Aimen

Smart Home Co., Ltd., Gujia Home Furnishing Co., Ltd., Mingzhu Furniture Co., Ltd.,

Qisheng Technology Co., Ltd., Shanghai Aishu Mattress Group Co., Ltd., Yantai Jisi

Furniture Group Co., Ltd., Hunan Wanan Home Furnishing Industry Co., Ltd., Hubei

Lianle Bedding Group Co., Ltd., Hunan Xinggang Home Furnishing Development Co.,

Ltd., Nanjing Jinbang Qilin Home Furnishing Co., Ltd., Zhejiang Gaoyu Home

Furnishing Technology Co., Ltd., Wanhua Chemical Group Co., Ltd., Suining County

Shaji Town E-commerce Association, Guangdong Lin's Home Furnishing Co., Ltd.,

Chongqing Jiameng Furniture Co., Ltd., Shenzhen Zhongshen'ai Bedding Technology

Co., Ltd., Foshan Yiao Technology Industry Co., Ltd., Dongguan Weibing Sponge

Furniture Co., Ltd., Dongguan Wohuang Bedding Co., Ltd., Fujian Product Quality

Inspection Institute, Qingdao Product Quality Inspection Institute, China Quality

Certification Center Center, Shenzhen Sai De Testing Technology Co., Ltd., SGS-

CSTC Standards Technical Services Co., Ltd. Guangzhou Branch, Dongguan Jinhui

Testing Equipment Manufacturing Co., Ltd., Hebei Shengyounuo Home Products Co.,

Ltd., Jiangsu Aidefu Latex Products Co., Ltd., Jiangsu Jinyingtai Latex Products Co.,

Ltd., Foshan Haima Furniture Co., Ltd., Foshan Suilong Furniture Co., Ltd., Zhangzhou

Xinhuacheng Machinery Manufacturing Co., Ltd.

1 Scope

This document specifies the requirements for dimensional deviation, fabric, physical

properties, etc. of foam mattresses; describes the corresponding test methods; specifies

the inspection rules, marking, instructions for use, packaging, transportation and

storage; provides symbols and product classifications that facilitate technical provisions.

This document is applicable to the quality inspection and quality determination of foam

mattresses with a thickness of not less than 130 mm; it is used as a reference for foam

mattresses with a thickness of less than 130 mm.

2 Normative references

The contents of the following documents constitute essential clauses of this document

through normative references in the text. Among them, for dated references, only the

version corresponding to that date applies to this document; for undated references, the

latest version (including all amendments) applies to this document.

GB/T 2828.1-2012 Sampling procedures for inspection by attributes - Part 1.

Sampling schemes indexed by acceptance quality limit (AQL) for lot-by-lot

inspection

GB/T 3920-2008 Textiles - Tests for color fastness - Color fastness to rubbing

GB/T 4802.2 Textiles - Determination of fabric propensity to surface fuzzing and to

pilling - Part 2.Modified Martindale method

GB/T 5296.6 Instructions for use of products of consumer interest - Part 6.furniture

GB/T 6344-2008 Flexible cellular polymeric materials - Determination of tensile

strength and elongation at break

GB/T 6669-2008 Flexible cellular polymeric materials - Determination of

compression set

GB/T 6670-2008 Flexible cellular polymeric materials - Determination of resilience

by ball rebound

GB/T 9345.1-2008 Plastics - Determination of ash - Part 1.General methods

3 Terms, definitions, symbols

3.1 Terms and definitions

The terms and definitions as defined in QB/T 1952.2, as well as the following terms

and definitions, apply to this document.

3.1.1

Foam mattress

A mattress product made of natural latex, synthetic latex, polyurethane and other

materials, which are formed by foaming process as the main core material and

covered with fabric or composite fabric.

3.1.2

Ash content

The incombustible components left after burning of latex or polyurethane materials

in foam mattresses (3.1.1).

3.2 Symbols

The following symbols apply to this document, as shown in Table 1.

4 Product classification

4.1 Classification by main design dimensions of the product

See Table 2 for the classification by main design dimensions of the product.

4.2 Classification by core material

4.2.1 Latex mattress

Mattress with natural or synthetic latex material as the core (core material) and covered

with fabric or other materials on the surface.

5 Requirements

The product shall comply with the requirements of Table 3.

6 Test method

6.1 General test conditions

6.1.1 Test preparation

Before the test, the specimen shall be placed in a standard environment with a

temperature of (23 ± 2) °C and a relative humidity of (50 ± 5)% for at least 24 hours.

During the aging equilibrium period, the mattress shall remain flat and unloaded; the

test shall be conducted indoors.

6.1.2 Measurement accuracy

Unless otherwise specified, the force measurement shall be accurate to ±5%; the mass

measurement shall be accurate to ±0.5%; the size measurement shall be accurate to ±1

mm; the position of the load pad shall be accurate to ±5 mm.

6.2 Test device

6.2.1 Side guard

A device used to prevent the test piece from moving but not to limit the test piece from

tipping over. Its height shall not exceed 12 mm. If the test piece has a special structure,

a higher size may be used; however, its maximum height shall be just enough to prevent

the test piece from moving.

6.6 Physical and chemical properties of textile fabrics

6.6.1 Anti-pilling performance

The anti-pilling performance shall be measured according to the method of GB/T

4802.2 The test load for woven fabrics is (415 ± 2) g; the test load for knitted fabrics

is (155 ± 1) g.

6.11 Mass loss after dry heat aging

Take a specimen with a size of 100 mm × 100 mm × 25 mm. Place it in a standard

environment at a temperature of (23 ± 2) °C and a relative humidity of (50 ± 5)%, until

constant weight. Weigh it (m0). Then place it in an oven at a temperature of (105 ± 2) °C

for 48 hours. Weigh it (m1). Calculate the mass loss after dry heat aging. The number

of specimens is 5.

6.24 Sign

Check whether the product has a sign and whether the content complies with the

provisions of 8.1.

6.25 Instructions for use

Check whether the product has instructions for use and whether the content complies

with the provisions of 8.2.

7 Inspection rules

7.1 Inspection classification

Product inspection is divided into exit-factory inspection and type inspection.

7.2 Exit-factory inspection

7.2.1 Exit-factory inspection items

Exit-factory inspection is an inspection conducted when the product leaves the factory

or is delivered. Serial No.1 ~ 22, 53 ~ 55 (a total of 25 items) in Table 3 are exit-factory

inspection items.

7.2.3 Evaluation of exit-factory inspection results

7.2.3.1 If the basic items of a single product are all qualified, meanwhile the number of

unqualified items of general items is not more than 3, then the product is qualified;

otherwise, it is unqualified.

7.3 Type inspection

7.3.1 Inspection items

All inspection items specified in Chapter 5 (except those required by the contract).

7.3.2 Timing of type inspection

It is performed once a year in normal production; it shall also be conducted in any of

the following situations.

7.3.4 Inspection procedure

The inspection procedure follows the principle of not affecting the correctness of the

remaining inspection items as much as possible.

7.3.5 Determination of inspection results

Inspection results are divided into superior products, first-grade products, qualified

products, unqualified products. The product quality grade is evaluated according to the

provisions of Table 5.

8 Marking, instructions for use, packaging, transportation, storage

8.1 Marking

Product marking shall include at least the following.

8.2 Instructions for use

The main contents of the product instructions for use shall comply with the provisions

of GB/T 5296.6.It shall include at least.

8.3 Packaging

Products shall be packaged to prevent contamination and damage.

8.4 Transportation and storage

QB/T 4839-2023

LIGHT INDUSTRY STANDARD OF THE

PEOPLE'S REPUBLIC OF CHINA

ICS 97.140

CCS Y81

Replacing QB/T 4839-2015

Upholstered furniture - Form mattress

Issued on. DECEMBER 20, 2023

Implemented on. JULY 01, 2024

Issued by. Ministry of Industry and Information Technology of PRC

Table of Contents

Foreword... 3

1 Scope... 5

2 Normative references... 5

3 Terms, definitions, symbols... 6

4 Product classification... 7

5 Requirements... 8

6 Test method... 10

7 Inspection rules... 14

8 Marking, instructions for use, packaging, transportation, storage... 16

References... 18