| Source | Appearance, colour, and odour | December | July |
| SA | Clear, clean, colourless, and faint odour | Clear, clean, colourless, and odourless | SN | Clear, clean, colourless, and odourless | Clear, clean, colourless, and odourless | SF | Clear, clean, colourless, and odourless | Clear, clean, colourless, and odourless | NLS | Clear, clean, colourless, and odourless | Clear, clean, colourless, and odourless | KK | Clear, clean, colourless, and odourless | Clear, clean, colourless, and odourless | WHO | Clear, clean, colourless, and odourless | ā |
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