Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Part transparency classification.
| Level | Qualitative Description | Transmittance Value (%) | Transparency Level (Examples) | |
|---|---|---|---|---|
| Blurred | 1 | 76–100% of cloudy zones | <85 | Level 1
|
| 2 | 51–75% of cloudy zones | |||
| 3 | 26–50% of cloudy zones | 87.366 | Level 3
|
|
| 4 | 1–25% of cloudy zones | |||
| Transparent | 5 | Transparent with some defects | 93.436 | Level 6
|
| 6 | Transparent with isolated defects | 94.043 | ||
| 7 | Transparent without defects | 98.647 |
