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This standard is developed in accordance with the rules given in GB/T 1.1-2009.
This standard replaces QB 2658-2004 Lavatory for sanitary fittings.
In addition to a number of editorial changes the following technical changes have been made with respect to QB 2658-2004:
——the requirements for material are modified (see Sub-clause 6.1; Sub-clause 5.1 of 2004 Edition);
——the requirements for load resistance are added (see sub-clause 6.4.1);
——the impact resistance is modified (see Sub-clause 6.4.2; Sub-clause 5.4.1 of 2004 Edition);
——the drainage performance is added (see Sub-clause 6.4.3);
——the cold and thermal stability is modified (see Sub-clause 6.4.4; Sub-clause 5.4.5 of 2004 Edition);
——the chemical and contamination resistance performance are modified (see Sub-clause 6.4.5; Sub-clauses 5.4.9 and 5.4.10 of 2004 Edition);
——the surface stability is added (see Sub-clause 6.4.6);
——the overflow performance is modified (see Sub-clause 6.4.7; Sub-clause 5.4.2 of 2004 Edition);
This standard was proposed by the China National Light Industry Council.
This standard is under the jurisdiction of the Subcommittee on Building Hardware of National Technical Committee on Building Hardware Standardization Administration of China (SAC/TC 174/SC 3).
The previous editions of this standard are as follows:
—— QB 2658-2004.
Lavatory for sanitary fittings
1 Scope
This standard specifies the terms and definitions, classification and labeling, requirements, test methods, inspection rules and marking, packaging, transportation and storage of lavatory for sanitary fittings (hereinafter referred to as lavatory).
This standard is applicable to installations in washrooms, toilets, public facilities, etc., as a lavatory for sanitary fittings of hand washing and face washing.
This standard is applicable to the occasions with special chemical treatment requirements.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the normative document (including any amendments) applies.
GB/T 231.1-2009 Metallic materials - Brinell hardness test - Part 1: Test method
GB/T 2828.1 Sampling procedures for inspection by attributes Part1: Sampling schemes indexed by acceptance quality limit (AQL) for lot-by-lot inspection
GB 6566 Limits of radionuclides in building materials
GB 6952 Sanitary wares
GB/T 7410 Terms of vitreous and percelain enamels
GB 15763.2-2005 Safety glazing materials in building - Part 2: Tempered glass
HJ/T 201 The technical requirement for environmental labeling products-Water based coatings
HJ 2541 Technical requirement for environmental labeling products-Adhesive
JC/T 932 Drainage fittings for sanitary wares
QB/T 1334 Universal technical terms for faucets
3 Terms and definitions
For the purpose of this document, terms and definitions established in GB/T 7410 apply.
4 Classification and labeling
4.1 Classification
4.3.1.1 It is carried out based on product structure, see Table 1.
Table 1
Product structure Code
Split type F
Integral type L
4.1.2 It is carried out based on installation type, see Table 2.
Table2
Installation type Code
Vertical type L
Desktop type T
Suspended type G
4.1.3 It is carried out based on lavatory materials, see Table 3.
Table 3
Lavatory materials Code
Ceramic T
Tempered glass B
Glass fiber reinforced plastics W
Artificial stone (including gel coat type) R
Stainless steel G
Cast iron enamel Z
Other Q
4.2 Labeling
4.2.1 Labeling method for model
4.2.2 Labeling example
The model of tempered glass lavatory with integral and suspended is labeled as follows:
Lavatory LGB QB/T 2658-2017
5 Service conditions
The service conditions of the lavatory are as follows:
——ambient temperature: 0℃~50℃;
——ambient air does not contain corrosive gases.
6 Requirements
6.1 Materials
6.1.1 The materials used for lavatory shall meet the corresponding material standards.
6.1.2 The limit of radionuclide in lavatory materials shall meet the requirements of GB 6566.
6.1.3 The adhesives used for silencing gasket of stainless steel lavatory shall meet the requirements of HJ 2541.
6.1.4 The water-based coating for stainless steel lavatory which is applied to prevent moisture condensation on the back shall meet the requirements of HJ/T 201.
6.2 Appearance
6.2.1 The surface of the lavatory shall be smooth, and be free of obvious defects such as scratches, cracks, air bubbles and chips.
6.2.2 The surface coating of the lavatory shall be uniform in color and firm in binding, and shall be free of defects such as sagging, corrugation and base exposure.
6.2.3 The surface texture of the stainless steel lavatory shall be uniform and free of welding seam and other defects after polishing.
6.2.4 The appearance quality of tempered glass lavatory shall meet the requirements of Sub-clause 5.3 in GB15763.2-2005
6.3 Dimension and deviation
6.3.1 Dimension and deviation of lavatory shall meet those specified in Table 4.?
Table 4 In mm
Lavatory Specification and dimension Permissible deviation
Overall dimension Stainless steel ≤2 000 ±2
Artificial stone (including gel coat type) ≤1 000 ±5
Tempered glass ≤1 000 ±2
Glass fiber reinforced plastics ≤1 000 +5
-10
Cast iron enamel ≤1 000 +5
-10
Other ≤1 000 +5
-10
6.3.2 The mounting hole and the mounting surface of water supply accessories for the lavatory and the drain dimensions shall meet the requirements of corresponding standards.
6.4 Service performance
6.4.1 Load resistance
Lavatory shall be free of crack, rupture or permanent deformation (the lavatory shall be deemed as rejected in case of any deformation at directly force bearing point) after being tested in accordance with Sub-clause 7.4.1.
6.4.2 Impact resistance (applicable to tempered glass lavatory)
The lavatory shall be free of crack after being tested in accordance with Sub-clause 7.4.2.
6.4.3 Drainage performance
All water (except the residual water caused by surface tension) of lavatory shall be drained after being tested in accordance with Sub-clause 7.4.3.
6.4.4 Cold and thermal stability (except stainless steel lavatory)
The lavatory shall be free of defects such as crack, etc. after being tested in accordance with Sub-clause 7.4.4.
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Classification and labeling
5 Service conditions
6 Requirements
7 Test methods
8 Inspection rules
9 Marking, packaging, transportation and storage
