GSO ISO 4630:2021

ISO 4630:2015
Gulf Standard   Current Edition · Approved on 01 July 2021

Clear liquids — Estimation of colour by the Gardner colour scale

GSO ISO 4630:2021 Files

GSO ISO 4630:2021 Scope

ISO 4630:2015 specifies a method for estimating the colour of optically clear, yellow/brownish coloured liquid products by means of the Gardner colour scale using colour-measuring instruments. The method uses the Gardner colour scale described in Annex A.

It is applicable to drying oils, varnishes and solutions of fatty acids, polymerized fatty acids, resins, tall oil, tall oil fatty acids, rosin and related products. The results might be invalid if other products are tested.

The method described provides a more precise way of measuring Gardner colour than a visual sample comparison using human eyes. It is applicable to products having colours from Gardner 1 to Gardner 18. The Gardner scale is not applicable to products with colours darker than 18. For products with colours lighter than Gardner 1 the method specified in ISO 6271 applies.

Best Sellers From Oil and Gas Sector

GSO 1180:2021
 
Gulf Standard
Automatic transmission fluid (ATF)
BH GSO 1180:2022
GSO 1180:2021 
Bahraini Standard
Automatic transmission fluid (ATF)
GSO 672:2010
 
Gulf Standard
Liquefied petroleum gases (LPG) for household use( mixture of commerical propane and butane).
GSO 1161:2021
 
Gulf Standard
HLP HYDRAULIC OILS

Recently Published from Oil and Gas Sector

GSO ASTM D3244:2024
ASTM D3244:21a 
Gulf Standard
Standard Practice for Utilization of Test Data to Determine Conformance with Specifications
GSO ISO 7055:2024
ISO 7055:2023 
Gulf Standard
Natural gas — Upstream area — Determination of drag reduction in laboratory for slick water
GSO ASTM D4739:2024
ASTM D4739:23 
Gulf Standard
Standard Test Method for Base Number Determination by Potentiometric Hydrochloric Acid Titration
GSO ASTM D6824:2024
ASTM D6824:23 
Gulf Standard
Standard Test Method for Determining Filterability of Aviation Turbine Fuel