## Common ground
All options are types of wash bottles, used for storing and dispensing liquids (e.g., cleaning or lab solutions).
## Options at a glance
**3926.90 – Made of plastic material**
- **Defining trait:** Constructed from durable, lightweight plastic (e.g., HDPE or PET).
- **Typical examples:** Lab wash bottles for water or detergent; household cleaning spray bottles.
- **Best fit when:** Flexibility, low cost, and resistance to breakage are priorities.
**6903 – Made of refractory ceramic**
- **Defining trait:** Designed to withstand very high temperatures (e.g., >1000°C).
- **Typical examples:** Industrial furnace components; rare lab vessels for extreme heat.
- **Best fit when:** The bottle must endure intense thermal conditions, not typical for standard wash use.
**6909.1X – Made of ceramic**
- **Defining trait:** Non-refractory, glazed or unglazed clay-based material, often used for decorative or specialized lab use.
- **Typical examples:** Small ceremonial bottles; specialty chemical storage in labs.
- **Best fit when:** Aesthetic appeal or chemical resistance to certain substances is key, but not high heat.
**7017 – Made of glass**
- **Defining trait:** Transparent, chemically inert, and highly resistant to most solvents.
- **Typical examples:** Lab reagent bottles; precision cleaning solutions in research.
- **Best fit when:** Clarity, purity, and resistance to chemical degradation are essential.
## Key differences
| Feature | Plastic (3926.90) | Refractory Ceramic (6903) | Ceramic (6909.1X) | Glass (7017) |
|---------------------|-------------------|----------------------------|--------------------|--------------|
| Heat resistance | Low | Very high | Moderate | High |
| Chemical resistance | Moderate | High (inert) | Medium | Very high |
| Transparency | Opaque/Translucent| Opaque | Opaque | Transparent |
| Breakage risk | Low | Low | High | High |
## How to choose
- Is the bottle used in high-heat environments? → 6903
- Does it need to be transparent for viewing contents? → 7017
- Is it for general cleaning or lab use with chemicals? → 3926.90 or 7017
- Is appearance or non-reactivity critical, and not heat-sensitive? → 6909.1X
## Overlaps & pitfalls
- A glass bottle may also be used in labs (overlaps 7017 with 6909.1X), but glass is more chemically inert than standard ceramic.
- Refractory ceramic (6903) is extremely rare for wash bottles—likely a misclassification unless for extreme industrial use.
- If the product is primarily for lab chemical storage, **glass (7017)** is best; if for general cleaning, **plastic (3926.90)**.
- No clear priority: choose based on **main function**—e.g., heat resistance vs. chemical purity vs. cost