Beryllium ceramic, beryllium copper, tantal, niobium, lythium.
Expanded clay is a lightweight porous building material obtained by firing clay or shale. Expanded clay gravel has an oval shape. Expanded clay rubble differs only in that its grains are mostly cubic in shape with sharp edges and corners. It is also produced in the form of sand - expanded clay sand. Depending on the mode of processing of clay or slate, it is possible to obtain expanded clay of various bulk density (volumetric weight) - from 350 to 600 kg/mâ³ and above. Used as a heater in the form of backfill, as well as for the production of lightweight concrete - expanded clay concrete. Expanded clay is also used in agriculture and hydroponics; it is used in domestic floriculture and as part of the soil in terrariums. Expanded clay, whose price is at a very affordable level, not only for construction organizations, but also for individuals, is in high demand. Due to its unique properties this building material is most in demand as: Economical insulation, used for walls, floors, ceilings, basements; Filler for lightweight concrete; Decorative material, allowing ensuring proper thermal insulation of soil and lawns; Drainage and thermal insulation material for earth embankments of roads, the laying of which is carried out in water-saturated soils.
Appearance Not covered with mud, etc. Organoleptic Natural state, smell andcolor Total Defective(immature,broken, discolored, shrivelled, Peeled, staining, sproted, crushing, heated, and split) Max. 2 PCT Immature (Small, shrivelled thin and unnatural seeds) Max. 2 PCT Non-uniformity in terms of color ,size and variety Max. 5 PCT Moisture Max. 14 PCT Weelvil-dammaged Max. 2 PCT Toxic or noxious seeds like Ricinus communis ,Datura spp, Agrostema githago,Crotalaria . NIL Live or dead insects NIL Lead (Pb) Max. 0.5 PPM Cadmium (Cd) Max. 0.1 PPM Spore of Sulfite-reducting Clostridium Max. 150 CFU/GR Mould Max. 150 CFU/GR Pesticide residues According to ISIRI 6349/1 Mycotoxins According to ISIRI 5925 Packing and marking According to ISIRI 27 Crop year current crop Size 5.5- 7 mm Total Foreign matters (including ergot max 0.05 PCT, excreta max 0.01 PCT, insect part max 0.02 PCT, sclerotinia max 0.05 PCT, stones max 0.2 PCT, other foreign matters max 0.5 PCT) Max 1 PCT
Shungite stones.
