Technical Specifications
| S.No. | Test Description | ISO 13006:2018 / EN 14411 Group BIa Requirement | IS - 15622:2017 Group B1a | Johnson Endura Stepping Stone / Riser | Johnson Endura Stepping Stone / Riser | Test Method |
| A) Dimension Quality | Whichever is less applicable. Rectified edge | 12mm | 15mm | |||
| 1 | Deviation in Length & Width | ±0.3% or ±1.0mm | ± 0.1 % | ±0.1% | ±0.1% | ISO 10545-2 / IS 13630-1 |
| 2 | Deviation in Thickness | ±5% or ±0.5mm | ± 5 % | ±4% | ±4% | |
| 3 | Straightness of Sides | ±0.3% or ±0.8mm | ± 0.1 % | ±0.1% | ±0.1% | |
| 4 | Rectangularity | ±0.3% or ±1.5mm | ± 0.1 % | ±0.1% | ±0.1% | |
| 5 | Surface Flatness | ±0.4% or ±1.8mm | ± 0. 5 % | ±0.3% | ±0.3% | |
| 6 | Surface Quality | Min 95% | Min 95% free from visible defects | Min 95% | Min 95% | |
| B) Physical Properties | ||||||
| 1 | Water Absorption | <0.5%, individual Max 0.6%. | Average <0.08, Individual 0.1%, Max | <0.05% | <0.05% | ISO 10545-3 / IS 13630-2 |
| 2 | Scratch Hardness of Surface (Moh's scale) | _ | 5, Min | >6 | >6 | IS 13630 part 13 |
| 3 | Flexural Strength (Average MOR) | >35 N/mm2, Individual 32N/mm2, Min | Average 35N/mm2, Individual 32N/mm2, Min | >38N/mm² | >38N/mm² | ISO 10545-4 / IS 13630-6 |
| 4 | Breaking Strength | >1300N | >1300N | >3500N | >5000N | |
| 5 | Impact Resistance | Report value | 5, Min | >0.55 | >0.55 | ISO 10545-5 / IS 13630-14 |
| 6 | Deep Abrasion Resistance (Ungalzed) | <175mm3 | <175mm3 | <120mm3 | <120mm3 | ISO 10545- 6 / IS 13630-12 |
| 7 | # Skid Resistance | |||||
| a) Skid Resistance - Ramp Test | Manufacturer to declare | Manufacturer to declare | >R9 | >R9 | DIN 51130 | |
| b) Coefficient of Friction | Manufacturer to declare | Manufacturer to declare | >0.42 | >0.42 | ISO 10545 -17/ANSI A 326.3 | |
| 8 | Bulk Density, in (g/cc) | _ | >2.0 | >2.2 | >2.2 | ASTM C373-16 / IS 13630-2 |
| 9 | Moisture Expansion | Manufacturer to declare | Manufacturer to declare | <0.3mm/m | <0.3mm/m | IS 13630-part 3 / ISO 10545-10 |
| 10 | Frost Resistance | _ | Manufacturer to declare | No damage | No damage | ISO 10545-12 / IS 13630-10 |
| 11 | Color Resistance to UV Light | Manufacturer to declare | _ | No change in color | No change in color | DIN 51094 |
| C) Chemical Properties | ||||||
| 1 | Resistance to Concentrated HNO3 & H2SO4 Acid (wt. Loss) | _ | < 1.5 % | <0.8% | <0.8% | IS 4457:2007 Annex G |
| 2 | Resistance to Chemicals | |||||
| a) Resistance to Low concentrations of acids & alkalies | Manufacturer to declare | Manufacturer to declare | ULA | ULA | ISO 10545-13 | |
| b) Resistance to High concentrations of acids & alkalies | Manufacturer to declare | Manufacturer to declare | UHA | UHA | ||
| c) Resistance to household chemicals and swimming pool salts | UB | _ | UA | UA | ||
| 3 | Stain Resistance | Min Class 3 | Class 1 min | Min Class 3 ( ISO ), Class 1 ( IS ) | Min Class 3 ( ISO ), Class 1 ( IS ) | ISO 10545-14 / IS 13630-8 |
| D) Thermal Properties | ||||||
| 1 | Linear Thermal Expansion | _ | <6x10-6K-1 | <6x10-6K-1 | <6x10-6K-1 | ISO 10545-8 / IS 13630-4 |
| 2 | Thermal Shock Resistance | No damage | 10cycle , Min | No damage | No damage | ISO 10545-9 / IS 13630 -5 |
