ДСТУ EN ISO 2307:2022 Волокнисті канати. Визначення певних фізичних і механічних властивостей (EN ISO 2307:2019, IDT; ISO 2307:2019, IDT)

ДСТУ EN ISO 2307:2022
(EN ISO 2307:2019, IDT; ISO 2307:2019, IDT)

Волокнисті канати. Визначення певних фізичних і механічних властивостей

 
   
 
Не є офіційним виданням.
Офіційне видання розповсюджує національний орган стандартизації
(ДП «УкрНДНЦ» http://uas.gov.ua)

Contents

Foreword

1 Scope

2 Normative references

3 Terms and definitions

4 Principle

4.1 Calculation of the linear density

4.2 Measurement of the diameter, lay length and braid pitch

4.3 Measurement of the elongation of the rope

4.4 Measurement of the breaking force

5 Apparatus

6 Sampling

6.1 Composition of the batch to be sampled

6.2 Sample size

6.3 Selection of samples

7 Test pieces for tensile testing and force-elongation measurements

7.1 Length

7.2 Number of test pieces

7.3 Taking the test pieces

8 Conditioning

9 Procedure

9.1 General

9.2 Initial measurements

9.3 Mounting the test piece on the testing machine

9.4 Measurement of diameter, lay length or braid pitch and gauge length

9.5 Bedding-in of the test piece

9.6 Measurement of the elongation of the rope

9.7 Measurement of the breaking force

10 Linear density

11 Expression of results

11.1 General

11.2 Linear density, p₁

11.3 Diameter, lay length or braid pitch

11.4 Elongation

11.5 Actual breaking force

12 Determination of water repellency

12.1 General

12.2 Principle

12.3 Test pieces

12.4 Procedure

12.5 Results of tests

13 Determination of lubrication and finish content

13.1 General

13.2 Reagents

13.3 Preparation of samples

13.4 Determination of water content

13.5 Determination of lubrication and finish content

13.6 Calculation of lubrication and finish content

14 Test report

Annex A (normative) Reference tension

Annex В (informative) Alternative procedures for ropes with high breaking forces

Annex C (normative) Determination of the force-elongation coordinates on a separate test piece

Annex D (informative) Test report - Fibre ropes

Bibliography