GBW07424 (GSS-10) Soil Standard Reference Sample - Songnen Plain Soil Standard Reference Material, 70g

Standard materials for soil composition analysis,GBW07424 (GSS-10) Soil Standard Reference Sample - Songnen Plain Soil Standard Reference Material, 70gProvide a certificate of standard substance.This series of soil(GBW07423-GBW07430)Standard substances are mainly used as quantity standards and quality monitoring for geological and geochemical survey sample testing in coverage areas, and can also be used for analyzing similar substances in environmental, agricultural, and health departments.

Sample preparation:

The sample is composed of soil samples collected from moderate parts of the cultivated layer in major coverage areas in China. After drying, sieving through 1mm to remove impurities, drying at 110 ℃ for 24 hours to remove negative water and inactivate, and grinding with a high alumina ceramic ball mill to -0.074mm, accounting for more than 99%. Each sample preparation weighs approximately 400kg.

Uniformity and stability:

25 samples were randomly selected from the Zui small packaging bottles, with double portions taken from each bottle. X-ray fluorescence and plasma spectroscopy were used to analyze 10 representative elements with different contents and difficult uniformity. Under good testing accuracy, the variance test showed good sample uniformity, and the Zui small sample size was 0.1g. After nearly two years of investigation, no statistically significant changes were found in the samples, indicating good stability. Valid until 2020.

Packaging and Storage:

The sample is packaged in well sealed glass bottles, 70g/bottle, tightly sealed with a back cover and stored in a cool place.

To view the standard values, please click here:GBW07423-GBW07430 Soil Composition Analysis Standard Reference Materials Reference Values

andGBW07424 (GSS-10) Soil Standard Reference Sample - Songnen Plain Soil Standard Reference Material, 70gThe related products are as follows:

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