Numbers 5:15

then he is to bring his wife to the priest. He must also bring for her an offering of a tenth of an ephah of barley flour. He is not to pour oil over it or put frankincense on it, because it is a grain offering for jealousy, an offering of memorial as a reminder of iniquity.

Note A tenth of an ephah is approximately 2 dry quarts or 2.2 liters (probably about 3.5 pounds or 1.6 kilograms of barley flour).

Then shall the man bring his wife unto the priest, and he shall bring her offering for her, the tenth part of an ephah of barley meal; he shall pour no oil upon it, nor put frankincense thereon; for it is an offering of jealousy, an offering of memorial, bringing iniquity to remembrance.

then the man shall bring his wife to the priest, and shall bring her offering for her: one tenth of an ephah of barley meal. He shall pour no oil on it, nor put frankincense on it, for it is a meal offering of jealousy, a meal offering of memorial, bringing iniquity to memory.

Note 1 ephah is about 22 liters or about 2/3 of a bushel

then shall the man bring his wife unto the priest, and shall bring her oblation for her, the tenth part of an ephah of barley meal; he shall pour no oil upon it, nor put frankincense thereon; for it is a meal-offering of jealousy, a meal-offering of memorial, bringing iniquity to remembrance.