What is BS EN 12697-28 about?  
BS EN 12697- 28 is the 28th part of the multi-series of the document that is applicable to the bituminous mixtures.
BS EN 12697-28 describes test methods for preparing test portions for the determination of the binder, water content and grading of samples of bituminous mixtures when the sample submitted to the laboratory has a mass greater than or equal to four times the test portion.
Who is BS EN 12697-28 for? 
BS EN 12697-28 on preparation of samples for determining binder content, water content and grading is relevant to:
- Manufacturers and suppliers of bituminous mixtures and asphalt
- Asphalt refining plants
- Suppliers of construction materials
- Construction and civil engineers
- Contractors
- Road maintenance authorities
Why should you use BS EN 12697-28?  
Bitumen when used as a binder in asphalt, is widely used in the construction domain for road construction, paving and roofing.
When the sample presented to the laboratory has a mass larger than or equal to four times the test portion, BS EN 12697-28 defines test techniques for creating test portions for the determination of the binder, water content, and grading of samples of bituminous mixes.
The test methods described are suitable for quality control purposes during the production of plant mix and for checking compliance with a product specification. 
A precise and valid determination of binder content through the test methods under BS EN 12697-28 ensures of accurate and validated monitoring of the production processes. As a result, you can improve quality of construction materials for optimum durability and performance.
