HY/T 254-2018 Beach quality assessment and rating

GB 8978 GB/T 18190-2000 Oceanological terminology—Marine geology GB 2894-1996 Safety signs GB 2894-2008 Safety signs and guideline for the use GB 3095-1996 Ambient air quality standard GB 3096-1993 Standard of environmental noise of urban area GB 9667-1996 Hygienic standard for swimming place GB/T 10001.1-2000 Public information graphical symbols for use on sign—Part 1:Common symbols GB/T 10001.1-2006 Public information graphical symbols for use on sign—Part 1:Common symbols GB/T 10001.1-2012 Public information graphical symbols—Part 1:General symbols GB/T 10001.1-2023 Public information graphical symbols—Part 1:General symbols GB/T 10001.2-2002 Public information graphical symbols for use on sign—Part 2:Symbols for touring facilities and services GB/T 10001.2-2006 Public information graphical symbols for use on sign—Part 2:Symbols for tourism and entertainment GB/T 10001.2-2021 Public information graphical symbols—Part 2:Symbols for tourism and entertainment GB/T 12763.8-2007 Specifications for oceanographic survey—Part 8:Marine geology and geophysics survey GB/T 18973-2003 Classification and evaluation of tourism toilets GB/T 18973-2016 Classification and evaluation of tourism toilets GB/T 18973-2022 Quality requirements and evaluation of tourism toilets GB/T 25895.1-2010 Water safety signs and beach safety flags—Part 1:Specifications for water safety signs used in workplaces and public areas GB/T 25895.2-2010 Water safety signs and beach safety flags—Part 2:Specifications for beach safety flags—Colour,shape,meaning and performance GB/T 25895.2-2020 Water safety signs and beach safety flags—Part 2:Specifications for beach safety flags colour,shape,meaning and performance GB/T 25895.3-2010 Water safety signs and beach safety flags—Part 3:Principles and requirements for use GB/T 25895.3-2020 Water safety signs and beach safety flags—Part 3:Guidance for use GB 3095-2012 Ambient air quality standard GB 3097-1997 Sea water quality standard GB 3096-2008 Environmental quality standards for noise GB 2894-2025 Safety colours and safety signs