GB/T 9573-2013Rubber and plastics hoses and hose assemblies -- Methods of measurement of the dimensions of hoses and the lengths of hose assemblies (English PDF)

Foreword

This Standard is drafted according to the rules given in the GB/T 1.1-2009.

This Standard replaces GB/T 9573-2003 "Rubber or plastics hoses and hose

assemblies - Methods of measurement of the dimensions of hoses and the lengths of

hose assemblies". Compared with GB/T 9573-2003, the main changes of this

Standard are as follows:

- ADD test piece conditioning and measurement temperature (see Chapter 3);

- ADD method of using tapered gauges to measure inner-diameter (see 4.2);

- ADD measuring method of inner-diameter (see 4.8);

- ADD measuring method of outer-diameter (see 5.6);

- ADD the readings parts of measuring methods for different wall thicknesses

(see 7.1);

- ADD the readings parts of measuring methods for concentricity (see 8.1);

- ADD three methods of measuring concentricity (see 8.4, 8.5, 8.6);

- REVISE the measuring methods for the thickness of the lining and cover (see

9.2; Chapter 8 in 2003 edition);

- REVISE verification of through-bore of hose assemblies (see Chapter 11;

Chapter 10 in 2003 edition).

This Standard uses translation method and equivalently adopts ISO 4671:2007

"Rubber or plastics hoses and hose assemblies - Methods of measurement of the

dimensions of hoses and the lengths of hose assemblies" (English edition).

The editorial amendments in this Standard are as follows:

- ISO 3611 "Micrometer callipers for observation and measurement" in the

Chapter 2 normative references of ISO 4671:2007 is deleted because it is not

cited in main text.

This Standard was proposed by China Petroleum and Chemical Industry

Federation.

This Standard shall be under the jurisdiction of National Technical Committee on

Rubber and Products of Standardization Administration of China (SAC/TC 35/SC 1).

Drafting organizations of this Standard: Shandong Mei Chen Technology Co., Ltd.,

Shenyang Rubber Research & Design Institute, and Shenyang Institute of Product

GB/T 9573-2013

Rubber or plastics hoses and hose assemblies -

Methods of measurement of the dimensions of hoses

and the lengths of hose assemblies

1 Scope

This Standard specifies methods of measuring the inner-diameter, outer-diameter

(including diameter over reinforcement of hydraulic hoses), wall thickness,

concentricity and lining and cover thickness of hoses, methods of measurement and

identification of the lengths of hoses and hose assemblies, and a method of verifying

the through-bore of hydraulic hose assemblies.

2 Normative references

The following documents are essential to the application of this document. For the

dated documents, only the versions with the dates indicated are applicable to this

document; for the undated documents, only the latest version (including all the

amendments) are applicable to this document.

ISO 463 Geometrical Product Specifications (GPS) - Dimensional measuring

equipment design and metrological characteristics of mechanical dial gauges

ISO 3599 Vernier calipers reading to 0.1 and 0.05 mm

3 Test piece conditioning and measurement

temperature

5 Measurement of outer-diameter