Resistance to this method often arises because it is more time-consuming and may result in a lower humic acid percentage on the label. Some competing organizations avoid it, perceiving a lower percentage as negative, not realizing that the humic acid percentage is just one factor influencing the agronomic efficacy of the product.

Huma encourages the use of the ISO method. This method is recognized for its precision in determining HA concentrations and has been accepted by the International Humic Substances Society (IHSS).

It is important for any industry to engage with their customers with honesty and integrity. This entails offering accurate analyses of product constituents, enabling customers to make informed and reliable product comparisons. Choosing reliable testing methods ensures accurate determination of HA concentrations in products and promotes greater transparency with customers.

The ISO and CDFA methods provide the most accurate determination of HA concentrations as they rely on gravimetric analysis. In these methods, HA is extracted from a liquid or solid sample of known weight, dried, and then its weight is divided by the weight of the original sample to calculate the HA concentration. Both

Unlike synthetic agricultural chemicals, such as herbicides, displaying a higher humic acid percentage doesn’t necessarily have much agronomic significance. The quality of humic acid is more dependent on the agronomic functional groups it contains and its electron-donating and accepting capacity. Fortunately, New Mexico humic acid has proven to be the highest in these parameters,

As a market leader in humic products, Huma is discontinuing the use of colorimetric method, as accuracy is very important to us. We want to ensure the integrity of our products by providing precise HA concentration analyses.

The colorimetric method, also known as the spectrophotometric method, is a widely used technique for determining the concentration of humic acids (HA) in a sample. Although it's one of the oldest methods, it’s not the most accurate because its results can be easily affected by contamination. The colorimetric test is not accurate because it

The primary methods currently used for determining HA concentrations include the colorimetric method, the CDFA (California Department of Food and Agriculture) method, and the ISO method. Among these, the ISO method is the most accurate. This is because it determines HA concentrations gravimetrically (i.e., by weight), and the final extracted weight is adjusted for

Humic substances (HS) are carbon-rich organic materials derived from the microbial and abiotic breakdown and transformation of dead plant tissues through a process called humification. They occur in soil, sediments, and water. Additional sources from which HS are obtained for commercial purposes include peats, brown coals, oxidized lignite coals (i.e., Leonardite), and oxidized sub-bituminous