2025-5-17 18.97.9.175
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Position: Chinese Standard in English/QB/T 5659-2021
QB/T 5659-2021   Cribs (English Version)
Standard No.: QB/T 5659-2021 Status:valid remind me the status change

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Language:English File Format:PDF
Word Count: 17500 words Price(USD):525.0 remind me the price change

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Implemented on:2022-4-1 Delivery: via email in 1 business day
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Standard No.: QB/T 5659-2021
English Name: Cribs
Chinese Name: 婴儿床
Professional Classification: QB    Professional Standard - Light Industry
Issued by: MIIT
Issued on: 2021-12-2
Implemented on: 2022-4-1
Status: valid
Language: English
File Format: PDF
Word Count: 17500 words
Price(USD): 525.0
Delivery: via email in 1 business day
Codeofchina.com is in charge of this English translation. In case of any doubt about the English translation, the Chinese original shall be considered authoritative. This standard is developed in accordance with the rules given in GB/T 1.1-2020 Directives for standardization - Part 1: Rules for the structure and drafting of standardizing documents. This standard was proposed by China National Light Industry Council. This standard is under the jurisdiction of the National Technical Committee on Furniture of Standardization Administration of China (SAC/TC 480). This document is issued for the first time. Cribs 1 Scope This document specifies the requirements and inspection rules and provides the corresponding test methods and the relevant terms and definitions concerning cribs. This document is applicable to the production, inspection and sales of cribs with the internal length of bed base less than or equal to 900mm. 2 Normative references The following documents contain provisions which, through reference in this text, constitute provisions of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. GB/T 2828.1 Sampling procedures for inspection by attributes - Part 1: Sampling schemes indexed by acceptance quality limit (AQL) for lot-by-lot inspection GB/T 2828.3 Sampling procedures for inspection by attributes - Part 3: Skip-lot sampling procedures GB/T 2912.1 Textiles - Determination of formaldehyde - Part 1: Free and hydrolyzed formaldehyde (water extraction method) GB/T 3920 Textiles - Tests for colour fastness - Color fastness to rubbing GB/T 4893.4 Test of surface coatings of furniture - Part 4: Determination of adhesion - Cross cut GB/T 4893.7 Test of surface coatings of furniture - Part 7: Determination of surface resistance to alternation of heat and cold GB/T 4893.8 Test of surface coatings of furniture - Part 8: Determination of wearability GB/T 6031 Rubber, vulcanized or thermoplastic - Determination of hardness (hardness between 10 IRHD and 100 IRHD) GB/T 6672 Plastics film and sheeting - Determination of thickness by mechanical scanning GB 6675.2-2014 Safety of toys - Part 2: Mechanical and physical properties GB 6675.3-2014 Safety of toys - Part 3: Flammability GB 6675.4-2014 Safety of toys - Part 4: Migration of certain elements GB/T 6739 Paints and varnishes - Determination of film hardness by pencil test GB/T 7573 Textiles - Determination of pH of aqueous extract GB/T 10111 Generation of random numbers and procedures applied to sampling inspection for product quality GB/T 13264 Sampling procedures and tables for small lot inspection by attributes for percent nonconforming items GB/T 17592 Textiles - Determination of the banned azo colorants GB/T 17657-2013 Test methods of evaluating the properties of wood-based panels and surface decorated wood-based panels GB 19865-2005 Electric toys - Safety GB/T 19941.1 Leather and fur - Determination of formaldehyde content - Part 1: High performance liquid chromatography method GB/T 19942 Leather and fur - Chemical tests - Determination of banned azo colorants GB/T 22048 Determination of certain phthalate esters in toys and children’s products GB/T 23344 Textiles - Determination of 4-aminoazobenzene GB/T 28202 Furniture industry terminology GB/T 35607-2017 Green product assessment - Furniture QB/T 1950 Determination of resistance to water of furniture surface coatings QB/T 2537 Leather - Tests for colour fastness - Colour fastness to to-and-fro rubbing QB/T 2724 Leather - Chemical tests - Determination of pH QB/T 3826 Corrosion-resistant testing method of the metal deposits and conversion coatings for the light industrial products - Neutral salt spraying test (NSS) 3 Terms and definitions For the purposes of this document, the terms and definitions given in GB/T 28202 and the following apply. 3.1 crib furniture that provides a sleeping area for babies who have not been able to sit up on their own or pull or push their bodies up by hands and knees (such as crawling or kneeling) 3.2 cradle crib (3.1) with a bed base that is suspended without ropes or similar structures and can rock, swing or move up and down, which is shown in Figure 1 a) Rocking crib b) Swing crib Figure 1 Cradle 3.3 suspended crib crib (3.1) with a bed base suspended by ropes or similar structures at one or more fixing points 3.4 bedside sleeper crib (3.1) with guardrail on one side designed as the one that can be put down and spliced with the adult bed 3.5 mattress base component that integrates bed base and mattress 3.6 access zone all areas of the crib (3.1) except below the upper surface of the bed base when the baby can reach his/her hands through the guardrail; or all areas inside the crib (3.1) and the outer areas within 50mm below the upper edge of the guardrail when the baby can't reach his/her hands through the guardrail 4 Requirements 4.1 Appearance Product appearance shall be in accordance with those specified in Table 1.   Table 1 Appearance requirements S.N. Inspection item Requirements Item classification Basic Ordinary 1 Appearance of wooden parts Through crack No through crack √ – 2 Damage by insects No damage by insects √ – 3 Rotten timber The external surface shall be free of rotten timber, and the slightly rotten area on the internal surface shall not exceed 20% of the part area √ – 4 Resin pocket The external surface and storage parts shall be made of materials without resin pockets – √ 5 Knot For the complete live knot on external surface, the size shall not exceed 1/3 of the material width, and the diameter shall not exceed 12mm; for the incomplete live knot, the size shall not exceed 1/5 of the material width, and the diameter shall not exceed 10mm; the knot shall not be of through type, and its crack or damage shall be repaired, and the number of individual components shall not exceed 2; no rotten knot or seriously decayed knot shall be available (unless requited by special design) – √ 6 Holes, inbarks, resin canals and gum canals Repair shall be carried out, and the number of defects after repair shall not exceed 4 on the external surface while not exceed 6 on the internal surface (unless requited by special design; the defect with the maximum single length or diameter of less than 5mm is ignored) √ – 7 Other minor defects Defects such as cracks (except through cracks) and wanes shall be repaired, and the proportion of the defect shall be less than 10% in length while less than 5% in width of the component – *√ 8 Appearance of wood-based panel Frosting and water marks The external surface shall be free of frosting and water marks – √ 9 The area of frosting and water marks on the internal surface shall not exceed 5% of panel surface – √ 10 Spots One spot with an area within 30mm2 is allowed on the external surface of a panel – √ 11 Surface scoring The external surface shall be free of obvious scoring – √ 12 Surface depression The external surface shall be free of obvious depression – √ 13 Color difference The external surface shall be free of obvious color difference – √ 14 Blistering, cracking and delamination The external surface shall be free of blistering, cracking and delamination √ – 15 Appearance of hardware Electroplated parts The electroplated surface shall be free of rusty corrosion, burr and exposing undercoat √ – 16 The electroplated surface shall be smooth and flat, free of blistering, yellowing, mottling, burning, cracks, scoring and bumps, etc. – *√ 17 Painted parts The coating shall be free from missing spraying and rust √ The coating shall be smooth, uniform in color and luster, and free from defects like sagging, lumping, wrinkling and splatter; components of the same color shall be uniform in color and luster, and free of fading or discoloring, and the coating shall be free of wrinkling, clamminess or paint leakage; shall be flat, smooth and clear, and free of obvious nibs and fatty edge; shall be free of obvious processing marks, scoring, cracks, fog gloss, sanding through the finish, white spots, blistering, greasy gloss, sagging, pitting, bristles, power deposit and mixed slag – *√ 18 Metal alloy parts No rusty corrosion, oxide film debonding, cutting edges and sharp edges √ The surface shall have fine tissue, be free of cracks, burrs, dark spots, etc. – *√ 19 Welded parts The welding position shall be firm, and free of sealing-off, false welding and melt through √ – Welds shall be uniform and free of defects such as burrs, sharp edges, splashes and cracks – *√ 20 Appearance of plastic parts The surface of plastic parts shall be smooth, free of cracks, wrinkles, stains and obvious color difference – *√ 21 Soft cladded parts The pile fabric in the same part shall be consistent in fluff direction and free of obvious color difference – *√ 22 The cladding fabric shall be free of scratches, color stains, oil stains, fuzzing and pilling – *√ 23 The surface of soft cladding shall be flat, full, uniform in tightness, and free of obvious wrinkling; well-balanced and distinctively gradated in symmetric technical wrinkling, if any – *√ 24 Soft-faced threading shall be smooth and straight; symmetrical at rounded corners; free of obvious floating thread, skipped stitches or exposed thread ends – *√ 25 Exposed bubble nails shall be regularly arranged and basically equal-spaced; free from apparent flattening or depainting – *√ 26 Woodworking Non-interface area of wood-based panel unit shall be subjected to edge banding or finishing treatment √ – 27 Panels and components shall be free of burrs, cutting edges or edges and corners on the accessible parts or storage parts √ – 28 The external surface of panels or components shall be smooth, and the chamfering, round corners and round lines shall be uniform and follow the principle of symmetry (except for design requirements) – *√ 29 The facing, edge banding and post-forming edge banding shall be free of degumming, blistering or cracking √ – 30 The facing shall be tight and smooth, and free of obvious glue penetration – √ 31 Joints such as tenon, block and parts shall not break or shall be free of obvious cracks or gaps √ – 33 The installation of various fittings and connectors shall be free from missing, leakage and penetration (except for reserved hole and selected hole) √ – 34 The installation of various fittings shall be tight, smooth, regular and firm, and the joint shall be free from cracking or loosening – √ 35 The carved pattern shall be symmetrical, clear and distinctively gradated, the symmetrical parts shall be symmetrical, the concave and convex, large excavation, bridges, edges and corners and arcs shall be free of missing corners, and the bottom of the shovel shall be flat, and each part shall be free of hammering marks, chipping or burrs. The number of each defect shall not exceed 4. – *√ 36 The alignment of the wood shall be consistent, the concave-convex steps shall be symmetrical, the symmetrical stairs shall be symmetrical, the turning lines shall be clear, and the machined surface shall be free of timber crumble, knife marks and sand mark. The number of each defect shall not exceed 4. – *√ 37 Appearance of surface coating Components of the same color shall be uniform in color and luster – *√ 38 No fading or discoloring √ – 39 The coating shall be free of wrinkling, clamminess or paint leakage √ – 40 The coating shall be flat, smooth and clear, and free of obvious nibs and fatty edge; shall be free of obvious processing marks, scoring, cracks, fog gloss, sanding through the finish, white spots, blistering, greasy gloss, sagging, pitting, bristles, power deposit and mixed slag. The number of each defect shall not exceed 4. – *√ Note: The “*” mark in the above table indicates that more than 2 (including 2) items are included in the single item. If one of the items fails to meet the requirements, it shall be counted as one failure. If a single defect is so significant that affects the quality of the product, it shall be judged as a basic item.
Foreword i 1 Scope 2 Normative references 3 Terms and definitions 4 Requirements 5 Test method 6 Inspection rules
Referred in QB/T 5659-2021:
*GB/T 2828.1-2012 Sampling procedures for inspection by attributea-Part1:Sampling schemes indexed by acceptance quality limit(AQL) for lot-by-lot inspection
*GB/T 2828.3-2008 Sampling procedures for inspection by attributes - Part 3: Skip-lot sampling procedures
*GB/T 2912.1-2009 Textiles—Determination of formaldehyde—Part 1:Free and hydrolyzed formaldehyde(water extraction method)
*GB/T 3920-2008 Textiles—Tests for colour fastness—Colour fastness to rubbing
*GB/T 4893.4-2013 Test of surface coatings of furniture—Part 4:Determination of adhesion—Cross cut
*GB/T 4893.7-2013 Test of surface coatings of furniture—Part 7:Determination of surface resistance to alternation of heat and cold
*GB/T 4893.8-2013 Test of surface coatings of furniture—Part 8:Determination of wearability
*GB/T 6031-2017 Rubber, vulcanized or thermoplastic—Determination of hardness (hardness between 10 IRHD and 100 IRHD)
*GB/T 6672-2001 Plastics film and sheeting--Determination of thickness by mechanical scanning
*GB 6675.2-2014/XG1-2022 Safety of toys―Part 2:Mechanical and physical properties, includes Amendment 1
*GB 6675.3-2014 Safety of toys―Part 3:Flammability
*GB 6675.4-2014 Safety of toys―Part 4:Migration of certain elements
*GB/T 6739-2006 Paints and varnishes - Determination of film hardness by pencil test
*GB/T 7573-2009 Textiles—Determination of pH of aqueous extract
*GB/T 10111-2008 Generation of random numbers and procedures applied to sampling inspection for product quality
*GB/T 13264-2008 Sampling procedures and tables for small lot inspection by attributes for percent nonconforming items
*GB/T 17592-2011 Textiles―Determination of the banned azo colourants
*GB/T 17657-2013 Test Methods of Evaluating the Properties of Wood-based Panels and Surface Decorated Wood-based Panels
*GB 19865-2005/XG1-2022 Electric toys Safety, inlucdes Amendment 1
*GB/T 19941.1-2019 Leather and fur—Determination of formaldehyde content—Part 1: High performance liquid chromatography method
*GB/T 19942-2019 Leather and fur-Chemical tests-Determination of banned azo colourants
*GB/T 22048-2022 Determination of certain phthalate esters in toys and children's products
*GB/T 23344-2009 Textiles - Determination of 4-aminoazobenzene
*GB/T 28202-2020 Furniture industry terminology
*GB/T 35607-2017 Green product assessment—Furniture
*QB/T 1950-2013 Determination of resistance to water of furniture surface coatings
*QB/T 2537-2001 Leather—Tests for colour fastness—Colour fastness to cycles of to-and-fro rubbing
*QB/T 2724-2018 Leather - Chemical tests - Determination of pH
*QB/T 3826-1999 Corrosion-resistant testing method of the metal deposits and conversion coatings for the light industrial products--Neutral salt spraying test (NSS)
QB/T 5659-2021 is referred in:
*FZ/T 01031-1993 Knitted fabric and elastic woven fabric —Measurement on strength and expansion of joints —Sampling and expansion method
*FZ/T 01031-2016 Knitted fabric and elastic woven fabric-Determination of maximum force to seam rupture and elongation -Grab method
*JT/T 690-2007 Test method for photometric characteristics of retroreflectors
*JT/T 690-2022 Test method for photometric characteristics of retroreflectors
*GB 226-1991 Etch test for macrostructure and defect of steels
*GB/T 10125-1997 Corrosion tests in artificial atmospheres-Salt spray tests
*GB/T 10125-2012 Corrosion tests in artificial atmospheres—Salt spray tests
*GB/T 3730.1-1988 Motor vehicles and trailers-Types-Terms and definitions
*GB/T 3730.1-2001 Motor vehicles and trailers—Types—Terms and definitions
*GB/T 3730.1-2022 Terms and definitions of motor vehicles,trailers and combination vehicle— Part 1:Types
*GB 28007-2024 Technical specifications for the safety of infants' and children's furniture
Code of China
Standard
QB/T 5659-2021  Cribs (English Version)
Standard No.QB/T 5659-2021
Statusvalid
LanguageEnglish
File FormatPDF
Word Count17500 words
Price(USD)525.0
Implemented on2022-4-1
Deliveryvia email in 1 business day
Detail of QB/T 5659-2021
Standard No.
QB/T 5659-2021
English Name
Cribs
Chinese Name
婴儿床
Chinese Classification
Professional Classification
QB
ICS Classification
Issued by
MIIT
Issued on
2021-12-2
Implemented on
2022-4-1
Status
valid
Superseded by
Superseded on
Abolished on
Superseding
Language
English
File Format
PDF
Word Count
17500 words
Price(USD)
525.0
Keywords
QB/T 5659-2021, QB 5659-2021, QBT 5659-2021, QB/T5659-2021, QB/T 5659, QB/T5659, QB5659-2021, QB 5659, QB5659, QBT5659-2021, QBT 5659, QBT5659
Introduction of QB/T 5659-2021
Codeofchina.com is in charge of this English translation. In case of any doubt about the English translation, the Chinese original shall be considered authoritative. This standard is developed in accordance with the rules given in GB/T 1.1-2020 Directives for standardization - Part 1: Rules for the structure and drafting of standardizing documents. This standard was proposed by China National Light Industry Council. This standard is under the jurisdiction of the National Technical Committee on Furniture of Standardization Administration of China (SAC/TC 480). This document is issued for the first time. Cribs 1 Scope This document specifies the requirements and inspection rules and provides the corresponding test methods and the relevant terms and definitions concerning cribs. This document is applicable to the production, inspection and sales of cribs with the internal length of bed base less than or equal to 900mm. 2 Normative references The following documents contain provisions which, through reference in this text, constitute provisions of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. GB/T 2828.1 Sampling procedures for inspection by attributes - Part 1: Sampling schemes indexed by acceptance quality limit (AQL) for lot-by-lot inspection GB/T 2828.3 Sampling procedures for inspection by attributes - Part 3: Skip-lot sampling procedures GB/T 2912.1 Textiles - Determination of formaldehyde - Part 1: Free and hydrolyzed formaldehyde (water extraction method) GB/T 3920 Textiles - Tests for colour fastness - Color fastness to rubbing GB/T 4893.4 Test of surface coatings of furniture - Part 4: Determination of adhesion - Cross cut GB/T 4893.7 Test of surface coatings of furniture - Part 7: Determination of surface resistance to alternation of heat and cold GB/T 4893.8 Test of surface coatings of furniture - Part 8: Determination of wearability GB/T 6031 Rubber, vulcanized or thermoplastic - Determination of hardness (hardness between 10 IRHD and 100 IRHD) GB/T 6672 Plastics film and sheeting - Determination of thickness by mechanical scanning GB 6675.2-2014 Safety of toys - Part 2: Mechanical and physical properties GB 6675.3-2014 Safety of toys - Part 3: Flammability GB 6675.4-2014 Safety of toys - Part 4: Migration of certain elements GB/T 6739 Paints and varnishes - Determination of film hardness by pencil test GB/T 7573 Textiles - Determination of pH of aqueous extract GB/T 10111 Generation of random numbers and procedures applied to sampling inspection for product quality GB/T 13264 Sampling procedures and tables for small lot inspection by attributes for percent nonconforming items GB/T 17592 Textiles - Determination of the banned azo colorants GB/T 17657-2013 Test methods of evaluating the properties of wood-based panels and surface decorated wood-based panels GB 19865-2005 Electric toys - Safety GB/T 19941.1 Leather and fur - Determination of formaldehyde content - Part 1: High performance liquid chromatography method GB/T 19942 Leather and fur - Chemical tests - Determination of banned azo colorants GB/T 22048 Determination of certain phthalate esters in toys and children’s products GB/T 23344 Textiles - Determination of 4-aminoazobenzene GB/T 28202 Furniture industry terminology GB/T 35607-2017 Green product assessment - Furniture QB/T 1950 Determination of resistance to water of furniture surface coatings QB/T 2537 Leather - Tests for colour fastness - Colour fastness to to-and-fro rubbing QB/T 2724 Leather - Chemical tests - Determination of pH QB/T 3826 Corrosion-resistant testing method of the metal deposits and conversion coatings for the light industrial products - Neutral salt spraying test (NSS) 3 Terms and definitions For the purposes of this document, the terms and definitions given in GB/T 28202 and the following apply. 3.1 crib furniture that provides a sleeping area for babies who have not been able to sit up on their own or pull or push their bodies up by hands and knees (such as crawling or kneeling) 3.2 cradle crib (3.1) with a bed base that is suspended without ropes or similar structures and can rock, swing or move up and down, which is shown in Figure 1 a) Rocking crib b) Swing crib Figure 1 Cradle 3.3 suspended crib crib (3.1) with a bed base suspended by ropes or similar structures at one or more fixing points 3.4 bedside sleeper crib (3.1) with guardrail on one side designed as the one that can be put down and spliced with the adult bed 3.5 mattress base component that integrates bed base and mattress 3.6 access zone all areas of the crib (3.1) except below the upper surface of the bed base when the baby can reach his/her hands through the guardrail; or all areas inside the crib (3.1) and the outer areas within 50mm below the upper edge of the guardrail when the baby can't reach his/her hands through the guardrail 4 Requirements 4.1 Appearance Product appearance shall be in accordance with those specified in Table 1.   Table 1 Appearance requirements S.N. Inspection item Requirements Item classification Basic Ordinary 1 Appearance of wooden parts Through crack No through crack √ – 2 Damage by insects No damage by insects √ – 3 Rotten timber The external surface shall be free of rotten timber, and the slightly rotten area on the internal surface shall not exceed 20% of the part area √ – 4 Resin pocket The external surface and storage parts shall be made of materials without resin pockets – √ 5 Knot For the complete live knot on external surface, the size shall not exceed 1/3 of the material width, and the diameter shall not exceed 12mm; for the incomplete live knot, the size shall not exceed 1/5 of the material width, and the diameter shall not exceed 10mm; the knot shall not be of through type, and its crack or damage shall be repaired, and the number of individual components shall not exceed 2; no rotten knot or seriously decayed knot shall be available (unless requited by special design) – √ 6 Holes, inbarks, resin canals and gum canals Repair shall be carried out, and the number of defects after repair shall not exceed 4 on the external surface while not exceed 6 on the internal surface (unless requited by special design; the defect with the maximum single length or diameter of less than 5mm is ignored) √ – 7 Other minor defects Defects such as cracks (except through cracks) and wanes shall be repaired, and the proportion of the defect shall be less than 10% in length while less than 5% in width of the component – *√ 8 Appearance of wood-based panel Frosting and water marks The external surface shall be free of frosting and water marks – √ 9 The area of frosting and water marks on the internal surface shall not exceed 5% of panel surface – √ 10 Spots One spot with an area within 30mm2 is allowed on the external surface of a panel – √ 11 Surface scoring The external surface shall be free of obvious scoring – √ 12 Surface depression The external surface shall be free of obvious depression – √ 13 Color difference The external surface shall be free of obvious color difference – √ 14 Blistering, cracking and delamination The external surface shall be free of blistering, cracking and delamination √ – 15 Appearance of hardware Electroplated parts The electroplated surface shall be free of rusty corrosion, burr and exposing undercoat √ – 16 The electroplated surface shall be smooth and flat, free of blistering, yellowing, mottling, burning, cracks, scoring and bumps, etc. – *√ 17 Painted parts The coating shall be free from missing spraying and rust √ The coating shall be smooth, uniform in color and luster, and free from defects like sagging, lumping, wrinkling and splatter; components of the same color shall be uniform in color and luster, and free of fading or discoloring, and the coating shall be free of wrinkling, clamminess or paint leakage; shall be flat, smooth and clear, and free of obvious nibs and fatty edge; shall be free of obvious processing marks, scoring, cracks, fog gloss, sanding through the finish, white spots, blistering, greasy gloss, sagging, pitting, bristles, power deposit and mixed slag – *√ 18 Metal alloy parts No rusty corrosion, oxide film debonding, cutting edges and sharp edges √ The surface shall have fine tissue, be free of cracks, burrs, dark spots, etc. – *√ 19 Welded parts The welding position shall be firm, and free of sealing-off, false welding and melt through √ – Welds shall be uniform and free of defects such as burrs, sharp edges, splashes and cracks – *√ 20 Appearance of plastic parts The surface of plastic parts shall be smooth, free of cracks, wrinkles, stains and obvious color difference – *√ 21 Soft cladded parts The pile fabric in the same part shall be consistent in fluff direction and free of obvious color difference – *√ 22 The cladding fabric shall be free of scratches, color stains, oil stains, fuzzing and pilling – *√ 23 The surface of soft cladding shall be flat, full, uniform in tightness, and free of obvious wrinkling; well-balanced and distinctively gradated in symmetric technical wrinkling, if any – *√ 24 Soft-faced threading shall be smooth and straight; symmetrical at rounded corners; free of obvious floating thread, skipped stitches or exposed thread ends – *√ 25 Exposed bubble nails shall be regularly arranged and basically equal-spaced; free from apparent flattening or depainting – *√ 26 Woodworking Non-interface area of wood-based panel unit shall be subjected to edge banding or finishing treatment √ – 27 Panels and components shall be free of burrs, cutting edges or edges and corners on the accessible parts or storage parts √ – 28 The external surface of panels or components shall be smooth, and the chamfering, round corners and round lines shall be uniform and follow the principle of symmetry (except for design requirements) – *√ 29 The facing, edge banding and post-forming edge banding shall be free of degumming, blistering or cracking √ – 30 The facing shall be tight and smooth, and free of obvious glue penetration – √ 31 Joints such as tenon, block and parts shall not break or shall be free of obvious cracks or gaps √ – 33 The installation of various fittings and connectors shall be free from missing, leakage and penetration (except for reserved hole and selected hole) √ – 34 The installation of various fittings shall be tight, smooth, regular and firm, and the joint shall be free from cracking or loosening – √ 35 The carved pattern shall be symmetrical, clear and distinctively gradated, the symmetrical parts shall be symmetrical, the concave and convex, large excavation, bridges, edges and corners and arcs shall be free of missing corners, and the bottom of the shovel shall be flat, and each part shall be free of hammering marks, chipping or burrs. The number of each defect shall not exceed 4. – *√ 36 The alignment of the wood shall be consistent, the concave-convex steps shall be symmetrical, the symmetrical stairs shall be symmetrical, the turning lines shall be clear, and the machined surface shall be free of timber crumble, knife marks and sand mark. The number of each defect shall not exceed 4. – *√ 37 Appearance of surface coating Components of the same color shall be uniform in color and luster – *√ 38 No fading or discoloring √ – 39 The coating shall be free of wrinkling, clamminess or paint leakage √ – 40 The coating shall be flat, smooth and clear, and free of obvious nibs and fatty edge; shall be free of obvious processing marks, scoring, cracks, fog gloss, sanding through the finish, white spots, blistering, greasy gloss, sagging, pitting, bristles, power deposit and mixed slag. The number of each defect shall not exceed 4. – *√ Note: The “*” mark in the above table indicates that more than 2 (including 2) items are included in the single item. If one of the items fails to meet the requirements, it shall be counted as one failure. If a single defect is so significant that affects the quality of the product, it shall be judged as a basic item.
Contents of QB/T 5659-2021
Foreword i 1 Scope 2 Normative references 3 Terms and definitions 4 Requirements 5 Test method 6 Inspection rules
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Keywords:
QB/T 5659-2021, QB 5659-2021, QBT 5659-2021, QB/T5659-2021, QB/T 5659, QB/T5659, QB5659-2021, QB 5659, QB5659, QBT5659-2021, QBT 5659, QBT5659