California Code of Regulations
Title 3 - Food and Agriculture
Division 3 - Economics
Chapter 1 - Fruit and Vegetable Standardization
Subchapter 10 - Raw Products Inspection for Processing Analysis Different
Article 1 - Inspection of Grapes for Wine and By-Products
Section 1660.5 - Hand Sampling Tube Specifications

The hand sampling tube shall have an inside diameter of four (4) inches and a length of approximately 54 inches. The open end, which is pushed into the grapes, shall at all times have edges sharp enough to cut through the grapes and stems. The sampling tube shall be constructed to retain a minimum of 6 1/2 pounds.

Note: Authority cited: Sections 407 and 41194, Food and Agricultural Code. Reference: Sections 41191 and 41192, Food and Agricultural Code.