Physical Address
304 North Cardinal St.
Dorchester Center, MA 02124
D2301-24 – Standard Test Method Technical Guide
📐 Specification Overview and Classification
This specification covers electrical insulating tape consisting of a flexible backing made from vinyl chloride plastic coated on one side with a pressure-sensitive adhesive. The tape is classified into two types based on nominal thickness:
- Type I: General-purpose tape with a nominal thickness of 0.18 mm (0.007 in.).
- Type II: General-purpose tape with a nominal thickness of 0.25 mm (0.010 in.).
The backing shall be polyvinyl chloride plastic, smooth and uniform, with straight and unbroken edges. The pressure-sensitive adhesive coating must be smooth, uniform, and free from lumps and bare spots, with no adhesive transfer when unwound. Black plastic backing is considered standard, but other colors or transparent options are acceptable when specified.
⚙️ Test Methods and Requirements
All testing shall be conducted in accordance with Test Methods D1000. The tape must meet the requirements specified in Table 1 of the standard for the respective type. Key requirements include:
- Adhesive coating must be free from lumps and bare spots as per best commercial practices.
- No adhesive transfer should occur during unwinding.
- Selection of rolls, conditioning, and testing procedures follow D1000.
- If test results for any roll do not conform, two additional rolls shall be examined for rejection.
Tip: Always refer to the latest edition of ASTM D1000 for detailed test procedures to ensure compliance with D2301-24.
📊 Standard Roll Dimensions
The standard widths and lengths for rolls are selected from the following tables. Additional dimensions must be agreed upon between the purchaser and seller.
| 🟦 mm | 📏 in. |
|---|---|
| 6 | 1/4 |
| 9 | 3/8 |
| 12 | 1/2 |
| 15 | 5/8 |
| 19 | 3/4 |
| 22 | 7/8 |
| 25 | 1 |
| 30 | 1 1/4 |
| 38 | 1 1/2 |
| 50 | 2 |
| 📐 m | ⚡ ft |
|---|---|
| 6 | 20 |
| 20 | 66 |
| 33 | 108 |
Note: Widths greater than 50 mm (2 in.) and lengths beyond the standard list require agreement between the purchaser and seller.
❓ Frequently Asked Questions
🔍 What are the types of tape covered in this specification?
This specification covers two types: Type I with a nominal thickness of 0.18 mm (0.007 in.) and Type II with a nominal thickness of 0.25 mm (0.010 in.), both for general-purpose electrical insulating use.
💡 What test methods are used for this specification?
Testing is conducted in accordance with ASTM D1000, which covers test methods for pressure-sensitive adhesive-coated tapes used for electrical and electronic applications.
⚡ What are the standard roll widths available?
Standard widths range from 6 mm (1/4 in.) to 50 mm (2 in.), including sizes such as 12 mm (1/2 in.), 19 mm (3/4 in.), and 25 mm (1 in.). Wider widths are available by agreement between the purchaser and seller.
📌 How is the tape classified?
The tape is classified based on nominal thickness into Type I and Type II, as defined in Section 4 of the standard. Both types are for general-purpose applications.