Cereals, pulses and by-products. Determination of ash yield by incineration

BS EN ISO 2171:2010 Cereals, pulses and by-products. Determination of ash yield by incineration

BS EN ISO 2171 is an International Standard which specifies a method for determining the ash yielded by cereals, pulses and their milled products intended for human consumption. The source materials covered are:

a) Grains of cereals

b) Flours and semolinas

c) Milled products (bran and high bran content products, sharps)

d) Mixed cereal flours (mixes)

e) Cereal by-products other than milled products, and

f) Pulses and their by-products.

BS EN ISO 2171 is not applicable to starches and starch derivatives (see ISO 3593), to products intended for animal feeding stuffs (see BS EN ISO 5984), or to seeds.

Contents of BS EN ISO 2171:

Scope

2 Normative references

3 Terms and definitions

4 Principle

5 Reagents

6 Apparatus

7 Sampling

8 Preparation of the test sample

9 Procedure

9.1 Determination of the moisture content

9.2 Preparation of the ashing dishes

9.3 Preparation of the test portion

9.4 Pre-ashing

9.5 Ashing

9.6 Number of determinations

10 Expression of results

11 Precision

11.1 Interlaboratory tests

11.2 Repeatability

11.3 Reproducibility

11.4 Critical difference

11.5 Uncertainty

12 Test report

Annex A (informative) Results of interlaboratory tests

Annex B (informative) Practical application of repeatability and reproducibility limits

Bibliography