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215 RECORD OF CLEANING WORKS
• Written report: Record cleaning methods and procedures used for each type of
surface and deposit.
- Content: Relevant attributes of cleaning methods used including:
Equipment and settings.
Dwell times.
Number of applications.
Ambient temperatures.
• Additional documentation: None.
• Submission: At completion of cleaning works.

230 TRIAL SAMPLES
• Trial sample reference: site specific.
- Surface:
- Ceramic;
- Clay brick;
- Concrete;
- Granite;
- Gritstone;
- Limestone;
- Ragstone;
- Reconstituted stone; and
- Sandstone.
- Location/ Size: site specific.
- Type of soiling:
- Atmospheric soiling;
- Biological growths;
- Bird droppings;
- Bitumen;
- Cement;
- Efflorescence;
- Graffiti;
- Grease; and
- Metal stains.
- Cleaning methods:
- Abrasives;
- Chemicals;
- Chemical poultices;
- Plain poultices;
- Pressurized water;
- Steam;
- Surface biocides; and
- Water spray.
• Records: Maintain written records for each trial area, including cleaning methods
and conditions, to enable replication of results elsewhere.

PRODUCTS/ EQUIPMENT

312 SURFACE BIOCIDES
• Types: Registered by the Health and Safety Executive (HSE) and listed on the HSE
website under non-agricultural pesticides.
• Compatibility with surface: Free from staining or other harmful effects.

RotF generic (intermediate) NBS 2014 6118-AEW-XX-XX-NBS-A-01