If you are using or reviewing the PDF for this standard, here are the specific features that make it useful for laboratory technicians and quality control managers:
Erasing historical ambient moisture absorption before dry testing. Procedure C (Elevated Industrial Humidity)
The standard explains that the procedures may give "physical values somewhat higher or somewhat lower than values under equilibrium at normal conditions" depending on the material and test. Consequently, conditioning for reproducibility is often necessary for general purchase specifications and product control tests. astm d61821 pdf
Any peeling or delamination of the finish from the leather.
: He used a precision die to cut specimens exactly 45 mm by 70 mm. If you are using or reviewing the PDF
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Immersion in water to simulate high-moisture environments. Procedure D: Conditioning in high-humidity environments. Standard Laboratory Atmosphere Any peeling or delamination of the finish from the leather
Obtain reproducible results regardless of the material's previous exposure history.
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