529AMeaning of “processing” in relation to crystalline silica substances and related terms

529A Meaning of “processing” in relation to crystalline silica substances and related terms

529A Meaning of “processing” in relation to crystalline silica substances and related terms

(1) In this chapter, processing, in relation to a CSS, means—

(a) the use of power tools or mechanical plant to carry out an activity involving the crushing, cutting, grinding, trimming, sanding, abrasive polishing or drilling of a CSS, or

(b) the use of roadheaders to excavate material that is a CSS, or

(c) the quarrying of a material that is a CSS, or

(d) mechanical screening involving a material that is a CSS, or

(e) tunnelling through a material that is a CSS, or

(f) a process that exposes, or is reasonably likely to expose, a person to respirable crystalline silica during the manufacture or handling of a CSS.

(2) In this part, crystalline silica substance (CSS) means material that contains at least 1% crystalline silica, determined as a weight/weight (w/w) concentration.

Note—

Engineered stone is a type of CSS.

(3) In this part, crystalline silica—

(a) means crystalline polymorphs of silica, and

(b) includes the following substances—

(i) cristobalite,

(ii) quartz,

(iii) tridymite,

(iv) tripoli.

(4) In this chapter, engineered stone—

(a) means a CSS that—

(i) is an artificial product, and

(ii) is created by combining natural stone materials with other chemical constituents such as water, resins or pigments, and

(iii) becomes hardened, but

(b) does not include the following—

(i) concrete and cement products,

(ii) bricks, pavers and other similar blocks,