ASTM D1025-10 (R2021) pdf free download.Standard Test Method for Nonvolatile Residue of Polymerization-Grade Butadiene.
1.1 This test method covers the determination of nonvolatile material in polymcnzation-grade butadienc.
1.2 WARNING—Mercury has been designated by many regulatory agencies as a hazardous substance that can cause serious medical issues. Mercury. or its vapor, has been demonstrated to be hazardous to health and corrosive to materials. Use Caution when handling mercury and mercury-containing products. See the applicable product Safety Data Sheet (SDS) for additional information. The potential exists that selling mercury or mercury-containing products. or both, is prohibited by local or national law. Users must determine legality of sales in their location.
1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
2. Referenced Documents
2. 1 ASTM Standards:
El Specification for ASTM Liquid-in-Glass Thermometers
3. Summary of Test Method
3.1 A measured volume of liquid hutadiene is allowed to evaporate at room temperature from a small glass evaporating dish until only residue remains. The evaporation is then completed by heating the dish to a constant weight.
4. Significance and Use
4.1 This test method is used to determine if there is any heavy material in the hutadiene. It is possible that these materials could be deleterious to a polymerization reaction.
5. Apparatus
5. 1 Balance, Analytical, capable of weighing to the nearest 0.1 mg.
5.2 Evaporating Dish, glass, 80 mm in diameter and 45 mm in height.
5.3 Graduated Cylinder, capacity of 25 rnL, graduated in 0.2 mL subdivisions.
5.4 Oven, capable of maintaining a temperature of 105 °C ± 5°C.
5.5 Cooling Vessel, tightly covered, such as a glass desiccator, for cooling the evaporating dish before weighing.
5.6 Thermometer, range from —40 °C o 50 °C, graduated in 1 °C intervals, conforming to the requirements for ASTM Thermometer IC as prescribed in Specification El is satisfactory. Temperature measuring devices that cover the temperature range of interest, such as the ASTM IC thermometer, or liquid-in-glass thermometers, thermocouples. or platinum resistance thermometers that provide equivalent or better accuracy and precision may be used.ASTM D1025 pdf download.