Gardner Color Standards: Liquid Color Standard (No. 11)
Gardner Liquid Color Standards are used in the ASTM C40 and AASHTO T 21 test methods for the determination of organic impurities in fine aggregates. These standards use precision-polished glass filters in accurate visual comparison of color by instruments like the Gardner Delta Color Comparator to visually compare the color of transparent liquids. They are an alternative to the Organic Impurities Test Set. Individual standards are available in the 5 Gardner colors listed in the test method. The liquid is sealed in 0.47x4.6in (11.9x116mm) Dia.xH glass tubes marked with the Gardner number and packaged in a carrying case. Shelf life 5 years.
Features of Gardner Color Standards, Liquid Color Standard (No. 11):
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Liquid Gardner Color Scale reference standards for visual comparison of test samples
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Standards available for organic impurities test of fine aggregates
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5 year shelf life in sealed glass tubes
Product Dimensions 0.47 x 4.6in (11.9 x 116mm) Dia. x H
What is the Gardner Color Scale?
The Gardner Color Scale is a color objective measurement system for transparent liquids such as oils, varnishes and resins. Developed in 1958 it consists of 18 liquid color standards from light yellow (Gardner 1) to dark brown (Gardner 18). Each standard represents a specific color intensity so you can measure color consistently across your industry. The Gardner Color Scale is an essential tool in quality control to ensure your products meet color specifications and appearance.
Color Measurement and Testing
Color measurement and testing is critical for transparent liquids. The Gardner Color Scale is used in several test methods including ASTM D1544 and ASTM D6166 to measure the color of liquid samples. These test methods involve comparing the color of a sample to a known standard such as a Gardner Liquid Color Standard. The sample’s color is then assigned a value based on the closest matching standard. While visual comparison is a common method of color measurement it can be subjective and prone to error. To improve accuracy objective instruments like spectrophotometers are often used to get reliable and precise results.
Organic Impurities Test Accessories:
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Sodium Hydroxide Pellets 1lb container standard or reagent grade for testing to ASTM and AASHTO standards
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Organic Impurities Test Bottle with Lid colorless glass with graduations in oz and mL 8oz (236.6mL) capacity
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Organic Impurities Color Reference Disk 5 permanent, fade-free solid-glass reference colors of 5, 8, 11, 14 and 16 on the Gardner color scale in a plastic frame
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Gardner Liquid Color Standards Gardner Nos. 5, 8, 11, 14 and 16 for an alternative to reference colors and meet ASTM/AASHTO requirements
Meets: AASHTO T21 ASTM C 40/40M
The Gardner Liquid Color Standard (No. 11) is part of a range of color reference standards used in the ASTM C40 and AASHTO T 21 test methods for organic impurities in fine aggregates. This is an alternative to the Organic Impurities Test Set, each individual reference standard is one of the 5 Gardner colors specified in the test method.
The liquid color standard is sealed in a glass tube 0.47 x 4.6in (11.9 x 116mm) Dia. x H. The tube is marked with the Gardner number and packaged in a protective case to prevent damage. 5 year shelf life.
With liquid Gardner Color Scale reference standards this product allows for a visual and accurate comparison of test samples. It is used for organic impurities test of fine aggregates and meets the test requirements. By using these standards you can determine the presence and level of organic impurities in your samples.
The Gardner Liquid Color Standards make testing easier and more reliable. 5 year shelf life. The sealed glass tubes keep the liquid contained so no contamination or evaporation to affect the test results.
Also included with the Gardner Liquid Color Standard (No. 11) are Sodium Hydroxide Pellets, Organic Impurities Test Bottle with Lid and Organic Impurities Color Reference Disk. These accessories make testing even easier and more reliable.
The Gardner Liquid Color Standard (No. 11) meets AASHTO and ASTM test methods. So you can trust your test results.
In summary the Gardner Liquid Color Standard (No. 11) is a must have for anyone testing organic impurities in fine aggregates. Accurate color references and 5 year shelf life makes it a reliable and easy to use for testing.
Applications and Uses of Gardner Color Standards, Liquid Color Standard (No. 11)
The Gardner Color Scale is used in many industries. In the petroleum industry it’s used to measure the color of oils and fuels to meet quality standards. The pine industry uses it to measure the color of tall oil, tall oil fatty acids and rosin. The manufacturing industry uses it to measure the color of varnishes, resins and other transparent liquids. The scale is also used in the organic impurities test to detect contamination or impurities in raw materials or process variations caused by heating and oxidation. By using the Gardner Color Scale industries can maintain product quality and consistency and meet their specifications.