ISO 2137:2020

Foreword

Introduction

1 Scope

2 Normative references

3 Terms and definitions

4 Principle

5 Classifications, procedures and limitation

6 Apparatus

7 Sampling

8 Procedures for lubricating grease using full-scale methods

8.1 Procedure for unworked penetration

8.1.1 Preparation of test portion

8.1.2 Cleaning the cone and movable attachments

8.1.3 Penetration measurement

8.2 Procedure for worked penetration

8.2.1 Preparation of test sample

8.2.2 Preparation of test portion

8.2.3 Penetration measurement

8.3 Procedure for prolonged worked penetration

8.3.1 Preparation of apparatus and test portion

8.3.2 Penetration measurement

8.4 Procedure for block penetration

8.4.1 Preparation of test portion

8.4.2 Penetration measurement

8.4.3 Additional determinations

9 Procedures for lubricating grease using one-half-scale and one-quarter-scale cone method

9.1 General

9.2 Procedure for unworked penetration

9.2.1 Preparation of test portion

9.2.2 Cleaning cone and movable attachments

9.2.3 Penetration measurement

9.3 Procedure for worked penetration

9.3.1 Preparation of test sample

9.3.2 Preparation of test portion

9.3.3 Penetration measurement

10 Procedure for determining the cone penetration of petrolatum

10.1 Preparation of the test portion

10.2 Penetration measurement

11 Calculation

11.1 Calculation of full-scale penetration

11.2 Conversion to full-scale penetration for the one-half-scale and one-quarter-scale cones

11.2.1 General

11.2.2 One-quarter-scale cone

11.2.3 One-half-scale cone

12 Expression of results

13 Precision

13.1 General

13.2 Repeatability, r 

13.3 Reproducibility, R 

14 Test report

Bibliography