ISO 7500-1-2018 PDF

Full title and description

Metallic materials — Calibration and verification of static uniaxial testing machines — Part 1: Tension/compression testing machines — Calibration and verification of the force‑measuring system. This part of ISO 7500 specifies procedures for the general inspection, calibration and verification of the force‑measuring systems used in static tension and compression testing machines.

Abstract

ISO 7500‑1:2018 defines the verification process for tension/compression testing machines, consisting of a general inspection of the machine and its force‑application accessories, a calibration of the force‑measuring system, and confirmation that the machine’s performance meets limits given for a specified accuracy class. The document addresses static calibration only; calibration values are not necessarily valid for high‑speed or dynamic testing.

General information

• Status: Published (current; confirmed on review).
• Publication date: February 2018 (ISO edition published 2018‑02).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 77.040.10 — Mechanical testing of metals.
• Edition / version: Edition 5 (ISO 7500‑1:2018).
• Number of pages: 18 pages (official ISO publication length).

Core bibliographic and lifecycle details above are drawn from the ISO record for ISO 7500‑1:2018 (the edition published in 2018 and confirmed in review).

Scope

Specifies requirements and procedures for the static calibration and verification of the force‑measuring system of tension/compression testing machines used for metallic materials. The standard covers general inspection, calibration actions, classification of machine performance into defined classes, reporting and recommended intervals between verifications; it does not cover dynamic or high‑speed effects (see bibliography for dynamic considerations).

Key topics and requirements

• General inspection of the testing machine and accessories for correct installation and safe operation (Clause 5 / Annex A).
• Calibration procedure for the force‑measuring system using appropriate calibration devices and traceable standards.
• Definition and confirmation of the machine’s accuracy class and permissible performance limits across the machine’s working range.
• Requirements for the verification report and recommended intervals between successive verifications.
• Guidance on estimation and reporting of measurement uncertainty for calibration results (informative Annex C).
• Safety cautions: some verification tests can create hazardous conditions; appropriate precautions are required.

Typical use and users

Used by materials testing laboratories, calibration laboratories, machine manufacturers, quality/assurance engineers, metrology and accreditation bodies, and purchasers of testing equipment to ensure that static force indications of tension/compression machines are traceable, accurate and meet required performance classes. It informs laboratory verification programs, acceptance testing of new machines, and periodic re‑verification.

Related standards

Closely linked standards include ISO 7500‑2 (verification of applied force for creep testing machines), ISO 6892‑1 (tensile testing method at room temperature), ISO 9513 (calibration of extensometer systems), and ISO 376 (calibration of force‑proving instruments). ASTM Practice E4 (force verification of testing machines) is a commonly referenced alternative practice in jurisdictions using ASTM procedures. These related documents are often referenced for traceability, instrument classification, extensometer calibration and force‑proving device calibration.

Keywords

force calibration, force verification, uniaxial testing machines, tension testing, compression testing, force‑measuring system, calibration uncertainty, verification interval, machine class, metallic materials.

FAQ

Q: What is this standard?

A: ISO 7500‑1:2018 is an international standard that specifies how to calibrate and verify the force‑measuring systems of static tension and compression testing machines used for testing metallic materials.

Q: What does it cover?

A: It covers general inspection of the machine and accessories, the static calibration of the force‑measuring system, classification of machine performance into specified classes, preparation of a verification report, and guidance on verification intervals and measurement uncertainty. It does not establish calibration values for dynamic or high‑speed testing.

Q: Who typically uses it?

A: Calibration and materials testing laboratories, manufacturers and maintainers of testing machines, quality managers, and accreditation bodies use the standard to ensure force indications are traceable and within acceptable accuracy limits.

Q: Is it current or superseded?

A: ISO 7500‑1:2018 is the current published edition (published February 2018); the ISO record indicates the document was reviewed and confirmed (i.e., remains current) during its lifecycle review. Earlier editions (for example 2004 and corrigenda) have been superseded by the 2018 edition.

Q: Is it part of a series?

A: Yes — ISO 7500 is a multipart series addressing verification of static uniaxial testing machines; Part 1 covers tension/compression force‑measuring systems and Part 2 covers creep testing machines (and other related ISO documents cover extensometer calibration and force‑proving devices).

Q: What are the key keywords?

A: Force calibration, verification, uniaxial testing, tensile testing, compression testing, force‑measuring system, calibration uncertainty, machine class.