Реферат

This specification covers the requirements and corresponding test methods for vapor-degreasing grade perchloroethylene. When tested, materials shall conform to the following physical properties: specific gravity; distillation range (initial boiling point and dry point); acidity as HCl; alkalinity as NaOH; water content; appearance; color in Pt-co units; halides content; nonvolatile residues content; acid acceptance; and copper corrosion behavior.

Область применения

1.1 This specification covers vapor-degreasing grade perchloroethylene.

Note 1—Guide D3844 and Practice D4276 provide additional important information on solvent properties.

TABLE 1 Physical Properties

PropertySpecificationTest Method Specific gravity, 25/25°C1.606 to 1.625D2111 Distillation range (760 mm Hg)D1078 Initial boiling point, °C, min120.0 Dry point, °C, max125.0 Acidity (as HCl), weight, %, max0.0005D2989 Alkalinity (as NaOH), weight,
%, max0.030D2989 Water, weight, %, max0.0050D3401 AppearanceClear and free
from suspended
matterD3741 Color, Pt-Co, max20D2108 Halide (as Cl⁻), weight, %, max0.0005D2988 Nonvolatile residue, weight,
%, max0.0050D2109 Acid acceptance, as NaOH,
weight, %, min0.10D2942 Copper corrosion, weight loss,
mg, maxD3316 Flask10 Soxhlet20 Condenser20 Acidity as HCl, max, mL,
NaOH15