---
title: "GM1 ADR-DSN.G.375 General — Certification Specifications and Guidance Material for Aerodrome Design (CS-ADR-DSN) — Issue 7, Aerodromes · Avioverse"
description: "Combinations of ice, snow and/or standing water may, especially when rain, rain and snow, or snow is falling, produce substances with specific gravities…"
url: "https://avioverse.aero/regulations/easa/aerodromes/cs-adr-dsn/chapter-g-de-icing-anti-icing-facilities/gm1-adr-dsn-g-375"
---

# GM1 ADR-DSN.G.375 General

Certification Specifications and Guidance Material for Aerodrome Design (CS-ADR-DSN) — Issue 7 · Regulation (EU) No 139/2014 · EAR revision 13 Mar 2026

GM Guidance material

## GM1 ADR-DSN.G.375 General

Combinations of [ice](https://avioverse.aero/glossary/easa/ice), snow and/or [standing water](https://avioverse.aero/glossary/easa/standing-water) may, especially when rain, rain and snow, or snow is falling, produce substances with specific gravities in excess of 0.8. These substances, due to their high water/ice content, should have a transparent rather than a cloudy appearance and, at the higher specific gravities, should be readily distinguishable from [slush](https://avioverse.aero/glossary/easa/slush).

GM · GM1 ADR-DSN.G.375 — Regulation (EU) No 139/2014 · ED Decision 2014/013/R · Aerodromes Easy Access Rules · EAR revision 13 Mar 2026

[All rules in CHAPTER G — DE-ICING/ANTI-ICING FACILITIES](https://avioverse.aero/regulations/easa/aerodromes/cs-adr-dsn/chapter-g-de-icing-anti-icing-facilities)

Consolidated from the EASA Easy Access Rules (revision 13 Mar 2026, extracted 13 Oct 2026) for convenience. Not the official publication — verify against the Official Journal of the European Union and the EASA publications before operational use.