What the ISO reference covers
ISO 12312-2 addresses filters for direct observation of the Sun, including radiation transmission, quality and usage information. The applicable document and version must be identified in the test report.
KUSUF · 2027
Eclipse glasses standards and safety
ISO 12312-2, test reports, traceability and instructions: what to check when sourcing eclipse glasses professionally.
What a buyer should receive
Documentation connecting the test report to the model, filter, manufacturer and delivered batches. An “ISO” inscription alone does not establish conformity.
What depends on the destination
Market access, import and labelling requirements need country-by-country review. For placing products on the European Union market, PPE Regulation 2016/425 and applicable obligations must be examined. A CE marking does not replace this assessment.
Viewing safely
Inspect viewers before use and discard damaged filters. Follow the instructions and supervise children. These glasses are not filters for binoculars, telescopes or cameras.
KUSUF · Standards & safety
Safety.
Front and centre.
For professional buyers, confidence rests on evidence linked to the model supplied.
ISO 12312-2:2015Technical reference for direct observation of the Sun
Model testing
Test report from a competent laboratory, identifying the filter and model tested.
Batch traceability
Product, batch, manufacturer and responsible operator details linked to the delivery.
Instructions & marking
Readable instructions, relevant languages and destination-market requirements to verify.
The KUSUF model documentation and each market’s requirements remain subject to validation before commercialisation. Referencing a standard does not certify the product.
Explore requirements and documentation ↗Photography credits
Archive photography · 2017 / 2024
- Solar corona during the total eclipse on 8 April 2024, Cleveland — NASA / Jordan Salkin
- Diamond ring during the eclipse on 8 April 2024, Cleveland — NASA / Jordan Salkin
- Eclipse phases on 8 April 2024 in Cleveland — photographic composite NASA / Jordan Salkin
- Solar prominences photographed in Dallas on 8 April 2024 — NASA / Keegan Barber
- Partial eclipse over Ross Lake, USA, on 21 August 2017 — photographic composite NASA / Bill Ingalls
- 2017 · NASA / Carla Thomas
- 2017 · NASA / Aubrey Gemignani
NASA photographs illustrate the eclipse. NASA does not endorse or have any affiliation with KUSUF.