Gardner Color: Liquid Standard (No. 14)

Gardner Color: Liquid Standard (No. 14)

The Gardner Color Liquid Standard No. 14 is a crucial component for performing the ASTM C40 and AASHTO T 21 test methods, which are designed to identify the presence of organic impurities in fine aggregates like sand. These impurities, if present in significant amounts, can negatively impact the curing process and final strength of concrete.

This liquid standard provides a precise color reference for the Fine Aggregate Color Test. During the test, a sample of fine aggregate is mixed with a sodium hydroxide solution and allowed to sit. The resulting color of the liquid is then visually compared against the Gardner Color Standards to determine the level of organic impurities.

The No. 14 standard is one of five specific Gardner colors referenced in the test methods, allowing for accurate and consistent results. As a convenient alternative to preparing the colorimetric solution in-house, these standards save time and reduce the potential for error.

Each standard is hermetically sealed in a 0.47 x 4.6in (11.9 x 116mm) Dia.xH glass tube to prevent contamination and ensure color stability. The tube is clearly marked with the Gardner number for easy identification and comes in a protective case for safe storage and handling. With a guaranteed shelf life of five years, you can be confident in its accuracy and reliability over time.

Features:

• Provides a precise No. 14 Gardner Color reference standard for visual comparison.
• Essential for ASTM C40 and AASHTO T 21 tests for organic impurities in fine aggregates.
• Ready-to-use alternative to the Organic Impurities Test Set color solution.
• Hermetically sealed in a glass tube to ensure a five-year shelf life.
• Comes in a protective case for secure storage.

Product Dimensions: 0.47 x 4.6in (11.9 x 116mm) Dia. x H