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GSO ASTM E2727:2024
ASTM E2727:18
Gulf Standard
Standard Practice for Assessment of Rainwater Quality
GSO ASTM D7285:2024
ASTM D7285:06(2017)
Gulf Standard
Standard Guide for Recordkeeping Microfiltration and Ultrafiltration Systems
GSO ISO 5667-24:2021
ISO 5667-24:2016
Gulf Standard
Water quality — Sampling — Part 24: Guidance on the auditing of water quality sampling
GSO ISO 5667-6:2015
ISO 5667-6:2014
Gulf Standard
Water quality -- Sampling -- Part 6: Guidance on sampling of rivers and streams
GSO ISO 5667-4:2015
ISO 5667-4:1987
Gulf Standard
Water quality -- Sampling -- Part 4: Guidance on sampling from lakes, natural and man-made
GSO ISO 5667-19:2015
ISO 5667-19:2004
Gulf Standard
Water quality -- Sampling -- Part 19: Guidance on sampling of marine sediments
GSO ISO 5667-9:2015
ISO 5667-9:1992
Gulf Standard
Water quality -- Sampling -- Part 9: Guidance on sampling from marine waters
GSO ISO 19493:2013
ISO 19493:2007
Gulf Standard
Water quality – Guidance on marine biological surveys of hard-substrate communities
GSO ISO 8689-1:2013
ISO 8689-1:2000
Gulf Standard
Water quality - Biological classification of rivers - Part 1: Guidance on the interpretation of biological quality data from surveys of benthic macroinvertebrates
GSO ISO 8689-2:2013
ISO 8689-2:2000
Gulf Standard
Water quality - Biological classification of rivers - Part 2: Guidance on the presentation of biological quality data from surveys of benthic macroinvertebrates
GSO ISO 16665:2013
ISO 16665:2005
Gulf Standard
Water quality – Guidelines for quantitative sampling and sample processing of marine soft-bottom macrofauna