Superseded

GB/T 5836.2-2006Unplasticized poly (vinyl chloride) (PVC-U) fittings for soil and waste inside buildings (English PDF)

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Issued by

General Administration of Quality Supervision, Inspection and Quarantine

Level / Type

National · Recommended

Issue date

February 21, 2006

Implementation date

August 1, 2006

Scope

GB/T 5836.2-2006 (Unplasticized poly (vinyl chloride) (PVC-U) fittings for soil and waste inside buildings) is available as an English-translated PDF.

GB/T 5836.2-2006 — 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".

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Document preview — GB/T 5836.2-2006

National Standard of the People's Republic of China

ICS: 83.140.30
Classification: G 33

Issued by: General Administration of Quality Supervision, Inspection and Quarantine

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.

......

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.

Referenced standards

Normative references

GB/T 1033-1986 · ISO/DIS 1183.1984 · ISO 2859 · ISO 291.1997 · ISO 2507.1995 · ISO 3126.1974 · ISO 4633.1996 · QB/T 2568-2002

Cited by

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