Last updated 17th June 2025

ISO 23168:2019 Paints and varnishes, Determination of water content, Gas Chromatographic Method

ISO 23168:2019 outlines a procedure for utilizing a gas chromatograph to measure the water content of raw materials and water-borne coating ingredients. This test method can be used outside of its recommended operating range, between a water mass fraction of 15% and a water mass fraction of 90%. The manufacturer's instructions must be followed when setting up and operating the equipment. Every instrument component that comes into contact with the test sample must be constructed of a substance (like glass) that is resistant to the sample and won't chemically alter it.

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    Introduction to ISO 23168:2019

    ISO 23168:2019 describes how to measure the water content of raw materials and water-borne coating components using a gas chromatograph. This test method can be utilized outside its suggested operating range of 15% to 90% of the water mass fraction. MaTestLab is one of the best testing service providers, with the best network of testing laboratories in the USA to carry out ISO 23168:2019 tests for our clients.

    ISO 23168:2019 Test Method

    Gas chromatographyThe injection volume and split ratio must be coordinated to stay within the detector’s linear range and avoid going over the column’s capacity. Asymmetrical peaks will indicate that the gas-chromatographic system is overloaded.
    Determining the Water content of the dilution solventKarl Fischer titration method is used to determine the amount of water in the dilution solvent
    Quantitative determination of water contentThe “ready for use” sample must be injected into the gas chromatograph in amounts between 0.1 and 1 μl, and the chromatogram must be recorded. Next, the internal standard and the water peak locations must be identified.

    ISO 23168:2019 Test Specimens

    Specimen DetailThe sample’s mass is determined by the anticipated water content.
    Specimen SizeThe recommended procedure is to weigh the sample to the nearest 0.1 mg and add about 0.4 g of the internal standard to the sample vial. Additionally, weigh 10.0 g of dilution solvent to the nearest 0.1 mg and transfer it to the same vial.

    ISO 23168:2019 Test Results

    ISO 23168:2019 concentrated on utilizing the gas chromatographic method to determine the water content. Thanks to this approach, the water content of different coatings may be measured with accuracy and consistency. Since water content impacts the durability, shelf life, and application qualities of paints and varnishes, accurate measurement of water content is essential to maintaining the quality and performance of these materials. 

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    ISO 23168:2019 Related Tests

    ISO 23168:2019 is related to tests, including ISO 760 for applying the Karl Fischer method, ISO 1513 for preparing paint samples for testing, and ISO 3696 for testing water for analytical use in labs.

    FAQ's

    Where can I get the iso 23168 2019 tested?

    You can share your iso 23168 2019 testing requirements with MaTestLab. MaTestLab has a vast network of material testing laboratories, spread across the USA and Canada. We support your all material testing needs ranging from specific iso 23168 2019 test to various testing techniques.

    How much do I need to pay for the iso 23168 2019 test?

    Please contact us for a detailed quote for your iso 23168 2019 testing needs. Cost incurred to carry out different iso 23168 2019 testing methodology depends on the type of raw material; number of samples, coupons, or specimens; test conditions, turn around time etc. Costs of some ASTM testing methods start from $100 and the final value depends upon the factors listed above. Please contact us for the best and latest prices.

    How many samples are required for iso 23168 2019?

    The required number of samples or specimens should comply with the procedure given in the iso 23168 2019 standard. However, the MaTestLab operations team can assist you for your special requirements once you share your testing details with us.

    How much discount can I get on the iso 23168 2019 test?

    MaTestLab has a vast testing laboratory network, hence we bring you the best testing facilities in a cost-effective way. We offer considerable discounts (15-20%) to our returning customers based on test volume and frequency.

    How many days will it take to complete the iso 23168 2019 test?

    The turnaround time for iso 23168 2019 test methodology depends upon the test procedure mentioned in the standard test document. However, we at MaTestLab understand your research requirements and hence try to get your test completed within the least possible time.

    Where can I get the iso 23168 2019 tested?

    You can share your iso 23168 2019 testing requirements with MaTestLab. MaTestLab has a vast network of material testing laboratories, spread across the USA and Canada. We support your all material testing needs ranging from specific iso 23168 2019 test to various testing techniques.

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