scope:

This Japanese Industrial Standard specifies the procedures for sample preparation including the sampling and the sample reduction which are necessary for determining the components and the average values of properties of each lot of aluminium dross which is used as a flux in the manufacture of iron and steel.

WARNING Persons performing the procedures given in this Standard should take appropriate preventive measures as described in the following. However, the following do not purport to address all of the safety problems, if any, associated with the procedures of this Standard.

- When sampling is carried out in closed room or enclosed space, attention shall be paid to risks of oxygen deficiency and retention of ammonia gas, etc.

- Appropriate use of protective gears such as a safety helmet, safety shoes, a dust mask and safety goggles shall be ensured to prevent risks of personal injuries.

- As some samples, due to their composition and properties, may be prone to changing in properties, oxidation, heat generation, etc., sufficient safety measures shall be taken and tests swiftly carried out to prevent these phenomena and to avoid the associated risks. It is of special significance to wear a dust mask, safety goggles and other protective gears in sample pulverization operation when taking out sample from the pulverizing machine as this procedure may entail the risk of explosive reaction.