ISO 10345-1-1992 PDF

Full title and description

ISO 10345-1:1992 — Glass — Determination of stress‑optical coefficient — Part 1: Tensile test. This part specifies a standardized tensile test method to determine the wavelength‑dependent stress‑optical (photo‑elastic) coefficient of isotropic glass; the value is used to derive stress from measurements of stress birefringence in glass samples.

Abstract

Describes the tensile test for isotropic glass to obtain the stress‑optical coefficient (ratio of induced birefringence to applied uniaxial stress). The standard defines specimen geometry, required apparatus (stressing equipment, polarization/compensator), test procedure, measurement practice (wavelength, forces, measurement points) and reporting requirements.

General information

• Status: Published — confirmed as current following ISO periodic review (confirmed 2019).
• Publication date: First edition published May 1992 (commonly listed as 7 May 1992).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 81.040.01 — Glass in general.
• Edition / version: Edition 1 (1992).
• Number of pages: 4 pages (ISO catalogue metadata).

Scope

This part of ISO 10345 applies to isotropic glass and specifies the tensile‑loading test method for determining the stress‑optical coefficient as a function of wavelength. It is intended for laboratory determination of the coefficient so that measured optical birefringence can be converted into stress values. The standard complements Part 2 (bending test) which addresses an alternative test geometry.

Key topics and requirements

• Definition and significance of the stress‑optical coefficient (ratio of birefringence to applied uniaxial stress).
• Specimen requirements: prescribed geometry, minimum cross‑section dimensions and surface condition to avoid residual stress artefacts.
• Apparatus: tensile stressing equipment with accurate force measurement and alignment; polarization measuring equipment/compensator capable of measuring optical path difference to a few nanometres; specified light source and interference filter (commonly 589.3 nm).
• Test procedure: perform measurements at defined ambient temperature range, use at least two different tensile forces (recommended force separation), record optical path differences at the specimen centre, and calculate the stress‑optical coefficient from the slope of optical path difference versus applied stress.
• Reporting: include reference to ISO 10345‑1, glass type, wavelength used, testing temperature, applied forces, measured optical path differences and the derived stress‑optical coefficient with units.

Typical use and users

Used by glass testing laboratories, optical materials researchers, quality and failure analysis engineers, and manufacturers of optical/specialty glass. Typical applications include photo‑elastic stress analysis, quality control of optical components, research on glass mechanical/optical properties, and conversion of birefringence measurements into stresses for engineering assessments.

Related standards

ISO 10345-2:1992 — Glass — Determination of stress‑optical coefficient — Part 2: Bending test (complementary test method). Standards commonly referenced together include ISO 9802 (raw optical glass — vocabulary) and ISO 12775 (guidelines on glass types and test methods).

Keywords

stress‑optical coefficient, photoelasticity, stress birefringence, tensile test, isotropic glass, optical path difference, polarization measurement, ISO 10345, glass testing.

FAQ

Q: What is this standard?

A: ISO 10345‑1:1992 is the ISO test method that defines how to determine the stress‑optical (photo‑elastic) coefficient of isotropic glass using a tensile test.

Q: What does it cover?

A: It covers specimen dimensions and preparation, required apparatus (tensile rig and polarization/compensator), detailed test procedure (forces, measurement points, wavelength), calculation of the coefficient and the information to be reported.

Q: Who typically uses it?

A: Glass test laboratories, optical materials researchers, manufacturers and quality engineers who need to quantify the relation between measured birefringence and mechanical stress in glass.

Q: Is it current or superseded?

A: The 1992 first edition is published and was confirmed current after ISO review in 2019; it remains the active edition according to the ISO catalogue. Users should check ISO or their national body for any later amendments or replacements.

Q: Is it part of a series?

A: Yes — ISO 10345 is in at least two parts: Part 1 (tensile test) and Part 2 (bending test). Both were published in 1992 and are complementary methods for determining the stress‑optical coefficient.

Q: What are the key keywords?

A: stress‑optical coefficient, stress birefringence, tensile test, photoelasticity, optical path difference, polarization measurement, isotropic glass.