GB/T 5836.2-2006 (GB/T 5836.2-2018 Newer Version) PDF English
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Unplasticized poly (vinyl chloride) (PVC-U) fittings for soil and waste discharge inside buildings
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Unplasticized poly (vinyl chloride) (PVC-U) fittings for soil and waste inside buildings
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| GB/T 5836.2-1992 | English | 559 |
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Unplastisized polyvinyl chloride fittings for drainage in building
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GB/T 5836.2-2006: PDF in English (GBT 5836.2-2006) GB/T 5836.2-2006
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 83.140.30
G 33
Replacing GB/T 5836.2-1992
Unplasticized poly (vinyl chloride) (PVC-U)
fittings for soil and waste inside buildings
[ISO 3633.2002, Plastics piping systems for soil and waste discharge (low and high
temperature) inside buildings - Unplasticized poly (vinyl chloride) (PVC-U), NEQ]
ISSUED ON. FEBRUARY 21, 2006
IMPLEMENTED ON. AUGUST 1, 2006
Issued by. General Administration of Quality Supervision, Inspection and
Quarantine;
Standardization Administration Committee.
Table of Contents
Foreword . 3
1 Scope .. 5
2 Normative references . 5
3 Definitions and symbols .. 6
4 Materials . 7
5 Product classification .. 7
6 Requirements . 7
7 Test methods . 10
8 Inspection rules .. 12
9 Marks, packaging, transport and storage . 13
Annex A (informative) Basic types of fitting and mounting length (z-length) . 15
Foreword
GB/T 5836 consists of two parts.
- GB/T 5836.1-2006 "Unplasticized poly (vinyl chloride) (PVC-U) pipes for
soil and waste discharge inside buildings";
- GB/T 5836.2-2006 "Unplasticized poly (vinyl chloride) (PVC-U) fittings for
soil and waste inside buildings".
This Part is Part 2 of GB/T 5836.
This Part referred to ISO 3633.2002 "Plastics piping systems for soil and waste
discharge (low and high-temperature) inside buildings -- Unplasticized poly
(vinyl chloride) (PVC-U)". Combining with the actual conditions of production
and application in China, it revised GB/T 5836.2-1992 "Unplasticized polyvinyl
chloride fittings for drainage in buildings".
Since the implementation of this Standard, it replaces GB/T 5836.2-1992.
Compared with GB/T 5836.2-1992, the main changes in technical content in
this Part are as follows.
- added the clauses of "Definitions and symbols" and "Materials";
- added the provisions on elastic sealing ring fittings;
- expanded the product specifications from 40mm ~ 160mm to 32mm ~
315mm;
- specified the wall thickness requirements for different parts of fittings;
partially modified other sizes;
- deleted the classification of superior products and qualified products;
- added the requirements for product density;
- specified the Vicat softening temperature as 74°C;
- added the requirements for system applicability;
- added Annex A.
Annex A of this Part is informative.
This Part was proposed by China Light Industry Federation.
Unplasticized poly (vinyl chloride) (PVC-U)
fittings for soil and waste inside buildings
1 Scope
This Part specifies the definitions, materials, product classifications,
requirements, test methods, inspection rules, marks, packaging, transport and
storage of unplasticized poly (vinyl chloride) (PVC-U) fittings that take polyvinyl
chloride (PVC) resin as main raw material and are molded through injection
(hereinafter referred to as the fittings).
This Part is applicable to the fittings for soil and waste inside buildings. In
consideration of the chemical resistance and heat resistance of the material, it
can also be applicable to industrial drainage pipe fittings.
The fittings specified in this Part are used in conjunction with the fittings
specified in GB/T 5836.1-2006 "Unplasticized poly (vinyl chloride) (PVC-U)
pipes for soil and waste discharge inside buildings".
2 Normative references
The following standards contain the provisions which, through reference in this
Part, constitute the provisions of this Part. For dated references, subsequent
amendments (excluding corrections) or revisions do not apply to this Part.
However, the parties who enter into agreement based on this Part are
encouraged to investigate whether the latest versions of these documents are
applicable. For undated reference documents, the latest versions apply to this
Part.
GB/T 1033-1986, Test method for density and relative density of plastics (eqv
ISO/DIS 1183.1984)
GB/T 2828.1-2003, Sampling procedures for inspection by attributea-
Part1.Sampling schemes indexed by acceptance quality limit(AQL) for lot-
by-lot inspection (ISO 2859-1.1999, IDT)
GB/T 2918-1998, Plastics - Standard atmospheres for conditioning and
testing (idt ISO 291.1997)
GB/T 5836.1-2006, Unplasticized poly (vinyl chloride) (PVC-U) pipes for soil
and waste discharge inside buildings
GB/T 8801, Test method for unplasticized polyvinyl chloride (PVC-U) fittings
by falling
GB/T 8802-2001, Thermoplastics pipes and fitting - Determination of Vicat
softening temperature (eqv ISO 2507.1995)
GB/T 8803-2001, Injection-moulded unplasticized poly (vinyl chloride) (PVC-
U), chlorinated poly (vinyl chloride) (PVC-C), acrylonitrile-butadiene-styrene
(ABS) and acrylonitrile-styrene-acrylester (ASA)
GB/T 8806, Plastics piping systems - Plastics components - Determination
of dimensions (GB/T 8806-1988, eqv ISO 3126.1974)
GB/T 19278-2003, General terms and their definitions of thermoplastic pipes,
fittings and valves
HG/T 3091-2000, Rubber seals. Joint rings for water supply, drainage and
sewerage pipelines. Specification for materials (idt ISO 4633.1996)
QB/T 2568-2002, Solvent cements for unplasticized poly (vinyl chloride)
(PVC-U) plastic piping system
3 Definitions and symbols
3.1 Definitions
The terms and definitions defined in GB/T 19278-2003 and the followings apply
to this Part of GB/T 5836.
3.1.1 wall thickness at main body of the fitting (e1)
the thickness at any point other than the connection part of the fitting, in
millimeters (mm)
3.2 Symbols
The following symbols apply to this Part of GB/T 5836. See the relevant
illustrations for their meanings.
A Cooperative length
de Outer diameter of any point
dem Average outer diameter
dn Normative outer diameter
ds Socket normative diameter
dsm Socket average inner diameter
ey Wall thickness of any point
e1 Wall thickness of fitting main body
e2 Socket wall thickness
± 2)°C for 24 h in accordance with the provisions of GB/T 2918-1998, and tested
under this condition.
7.2 Color and appearance
Directly observe with naked eyes.
7.3 Size measurement
7.3.1 Wall thickness
Measure according to GB/T 8806. When necessary, it may cut the fitting out to
measure.
7.3.2 Average inner diameter of socket middle part (end)
Measure the two mutually perpendicular inner diameters of the socket middle
part (end) with an inner diameter gauge with an accuracy of not less than 0.01
mm. Take its arithmetic mean as the average inner diameter.
7.3.3 Average outer diameter of socket
Measure according to GB/T 8806.
7.3.4 Lengths of socket and jacket
Measured with a Vernier caliper with an accuracy of not less than 0.02 mm.
7.4 Density
Determine according to Method A in GB/T 1033-1986.
7.5 Vicat softening temperature
Measure according to GB/T 8802-2001.
7.6 Oven test
Measure according to GB/T 8803-2001.
7.7 Fall test
Measure according to GB/T 8801.
7.8 Systematic applicability
7.8.1 Water tightness
Measure according to Annex A of GB/T 5836.1-2006.
The type inspection items are all technical requirements of Clause 6. Carry
out the inspections on 6.1~6.3 according to 8.3.2. In the samples qualified in
inspection, randomly take enough samples for each inspection in 6.4 and 6.5.
In general, perform at least once every two years. Type inspection shall be
performed in one of the following situations.
- trial model identification for new product or old product produced in
transferred plant;
- great changes in structure, material, technique after official production
which may affect product performances;
- production resumed after discontinued production of more than one year;
- great difference between exit-factory inspection results and previous type
inspection results;
- required by national quality supervision organization.
8.5 Determination rules
Should one of 6.1~6.3 fail to comply with the provisions of Table 5, this batch
shall be determined as rejected. If one of the physical and mechanical
properties fails to meet the indicator requirement, double samples shall be
randomly selected from the batch for re-inspection. If the re-inspection still fails,
this batch shall be rejected.
9 Marks, packaging, transport and storage
9.1 Marks
9.1.1 The product shall at least have the following permanent marks.
a) factory name or trademark;
b) material name. PVC-U;
c) product specification. nominal outer diameter;
d) reference to this Part.
9.1.2 The product packaging shall at least have the following content.
a) manufacturer name and address;
b) product name;
c) trademark;
Annex A
(informative)
Basic types of fitting and mounting length (z-length)
A.1 Basic type of fitting
This Part involves the following basic types of the fitting (see Figure A.1 to
Figure A.7).
a) Straight through.
b) Reducer.
c) Elbow.
The nominal angle can be selected from 22.5°, 45° and 90°. Other angles
shall be agreed upon by the supplier and the purchaser, and be marked
accordingly on the product.
d) Multi-pass and reducer multi-pass.
The nominal angle can be selected from 45° and 90°. Other angles shall
be agreed upon by the supplier and the purchaser, and be marked
accordingly on the product. The fitting types of other designs are allowed
but the dimensions must comply with the relevant provisions.
A.2 Mounting length of fitting (z-length)
The mounting length of fitting (z-length) is only used to design the mold.
The z-length shall be given by the manufacturer. It is recommended to use the
dimensions specified in Table A.1 to Table A.6.
A.2.1 Elbow
See Figure A.1 and Table A.1 for the z-length of elbow.
......
Source: Above contents are excerpted from the PDF -- translated/reviewed by: www.chinesestandard.net / Wayne Zheng et al.
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