| Sr. No. | CHARACTERISTICS | IS: 15622:2017 | Our Specification | Method of Testing |
|---|---|---|---|---|
| 1 | Deviation in Length & Width | Max. ± 0.1% | Max. ± 0.1% | IS : 13630-1 |
| 2 | Deviation in Thickness | Max. ± 5.0 % | Max. ± 3.0 % | IS : 13630-1 |
| 3 | Deviation in Straightness of sides | Max. ± 0.1% | Max. ± 0.03 % | IS : 13630-1 |
| 4 | Deviation in Rectangularity | Max. ± 0.1% | Max. ± 0.04 % | IS : 13630-1 |
| 5 | Surface Flatness | Max. ± 0.5 % | Max. ± 0.04 % | IS : 13630-1 |
| 6 | Surface Quality | Min. 95% free from visible defects. |
Min. 99% free from visible defects. |
IS : 13630-1 |
| 7 | Water Absorption | Avg. 3< E ≤ 6% Individual max. 6.2 % |
Avg. 2 < E ≤ 6% Individual max. 6.0 % |
IS : 13630-2 |
| 8 | Scratch Hardness (Moh's Scale) | Min. 4 | Min. 5 | IS : 13630-13 |
| 9 | Abrasion Resistance | Class II Min. | Class Ill Min. | IS : 13630- 11 |
| 10 | Crazing Resista nce | 4 Cycle at 7.5 bar min | 4 Cycle at 7.5 bar Min. | IS : 13630- 11 |
| 11 | Modulus of Rupture N/mm2 | Avg. 22, Individual 20, Min | Avg. 36 , Individual 35 Min. |
IS : 13630 - 6 |
| 12 | Breaking Strength, in N | 600. Min. for thickness < 7.Smm 1000, Min. for thickness ≥ 7.5 mm | 1670 Min. | IS : 13630- 6 |
| 13 | Chemical Resistance | Required if agreed | Resistance to all acids and alkalis (except hydrochloric acid, Citric acid & Resistance to Alkali Potassium Hydroxide) |
IS : 13630- 8 |
| 14 | Thermal Shock Resistance | 10 Cycles, Min. | 10 Cycles Min. | IS : 13630- 5 |
| 15 | Resistance to Household Chemicals |
Class AA, Min. | Class AA Min. | IS : 13630- 8 |
| 16 | Resistance to staining | Class 1, Min. | Class 1Min. | IS : 13630- 8 |
