Foreword

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The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the different types of ISO document should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).

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This document was prepared by Technical Committee ISO/TC 67, Oil and gas industries including lower carbon energy, Subcommittee SC 3, Drilling and completion fluids, well cements and treatment fluids, in collaboration with the European Committee for Standardization (CEN) Technical Committee CEN/TC 12, Oil and gas industries including lower carbon energy, in accordance with the Agreement on technical cooperation between ISO and CEN (Vienna Agreement).

This second edition cancels and replaces the first edition (ISO 13503-5:2006), which has been technically revised. It also incorporates the Amendment ISO 13503-5:2006.

This document supplements API RP 19D, 2nd edition (2021).

The technical requirements of this document and API RP 19D used to be identical. In the meantime API RP 19D has been technically revised as API RP 19D, 2nd edition (2021). The purpose of this edition of ISO 13503-5 is to bring it up to date, by referencing the current edition of API RP 19D and including supplementary content.

The main changes are as follows:

A new levelling devices utilized;
The stress increasing rate reduced to 100 kPa/min ± 10 kPa/min;
Additional stress points during the pressurization process added.

A list of all parts in the ISO 13503 series can be found on the ISO website.

Any feedback or questions on this document should be directed to the user’s national standards body. A complete listing of these bodies can be found at www.iso.org/members.html.

1 Scope

This document provides testing procedures for evaluating proppants used in hydraulic fracturing and gravel packing operations.

NOTE Proppants mentioned in this document refer to sand, ceramic, resin-coated, gravel packing proppants, and other materials used for hydraulic fracturing and gravel packing operations.

This document supplements API RP 19D, 2nd edition (2021), the requirements of which are applicable with the exceptions specified in this document.

This document provides consistent methodology for testing performed on hydraulic fracturing and/or gravel packing proppants. It is not intended for use in obtaining absolute values of proppant pack conductivities under downhole reservoir conditions.

2 Normative references

3 Supplements to API RP 19D, 2nd edition (2021)

3.1 General requirements

3.2 Procedure for Loading the Cell(s)

3.3 Acquiring Data

Bibliography

ISO/DIS 13503-5

Oil and gas industries including lower carbon energy. Completion fluids and materials — - Part 5: Measuring conductivity of proppants

Current

Published:

5 May 2026