Nissan NES M7105 Vinyl Chloride Floor Covering for Cars

The Nissan NES M7105 Vinyl chloride floor coating for automobiles standard, developed by Nissan Automobiles, is part of Nissan's internal engineering and testing standards, each dealing with different material properties or component tests (e.g., chemical resistance, abrasion, thermal performance), and specifically covers vinyl chloride-based floor coating materials, their properties, and potential test methods used in automotive applications.

These standards are often used by automotive engineers and testing laboratories to ensure that materials meet Nissan's quality and safety requirements.

The Nissan NES M7105 standard focuses on PVC (vinyl chloride) sheets used as automotive floor coverings (carpet or floor mat type sheets in some upholstery, service models, and light commercial vehicles). This standard is a test standard specifically designed for vinyl chloride (PVC)-based floor covering sheets used in automobiles. These materials are plastic-based coverings resistant to water, chemicals, and abrasion, used in place of or under carpeting in vehicles. The NES M7105 standard specifies the quality, durability, and safety criteria for these coverings.

The main points covered by this standard are:

• Material properties:
  • Polyvinyl chloride (PVC) based structure
  • Specific thickness, hardness and flexibility ranges
  • Color and surface smoothness
• Performance tests:
  • Thermal resistance (shape, cracking, hardening control under high and low temperature conditions)
  • Abrasion resistance (long-term use test on driver and passenger foot areas)
  • Chemical resistance (against liquids that come into contact with the automotive interior environment, such as oil, fuel, cleaning agents)
  • Moisture and water resistance (waterproof and no risk of deterioration under humidity)
  • Dimensional stability (measurement of shrinkage/expansion at temperature difference)
• Climatic suitability:
  • Special requirements according to the heat/cold conditions of different markets such as USA, Europe, Middle East, Japan
  • Extra thermal resistance for high temperature regions, low temperature flexibility for cold climates

In short, the Nissan NES M7105 standard was developed by Nissan to ensure the durability, safety, and longevity of PVC coatings used on vehicle floors. The test methods applied to vinyl chloride-based flooring materials in this standard focus on measuring the material's performance against both mechanical and environmental conditions. The main test methods included in this standard are:

• Visual inspection: This test is used to check for surface defects. Color, homogeneity, and surface smoothness are determined.
• Thickness measurement: This test is used to check the suitability of the material. The thickness tolerance (mm) is determined.
• Hardness test (Shore A/D): This test is used to determine whether the material has sufficient hardness. Elasticity and compressive strength are determined.
• Tensile and tensile tests: This test is used to measure mechanical strength. Tensile strength and elongation percentage are determined.
• Flexibility test (cold flexibility): This test is performed to check for fracture and cracking at low temperatures. Flexibility is determined in cold climates.
• Thermal aging test: This test is used to measure material deterioration under high temperatures. Hardening, color change, and deformation are determined.
• Dimensional stability testing: This test is used to determine the change in dimensions due to temperature changes. The rate of expansion or contraction is determined.
• Abrasion resistance: This test is used to measure resistance to continuous friction. Surface wear loss is determined.
• Chemical resistance test: This test is used to measure resistance to liquids that come into contact with the vehicle. Resistance to fuel, oil, and cleaning chemicals is determined.
• Moisture and water absorption test: This test is used to examine the material's behavior against water. The rate of water absorption and swelling are determined.
• Flammability test (where required): This test is used for fire safety assessment. Flame retardancy and self-extinguishing are determined.

In summary, the Nissan NES M7105 standard verifies critical properties of PVC floor coverings, such as thickness, hardness, mechanical strength, thermal behavior, abrasion, and chemical resistance, through various tests. This ensures both longevity and safety.

This standard applies to a wide range of automotive components, including:

• Electrical systems: Sensors (e.g., coolant temperature sensors, throttle position sensors), wiring harnesses, and electronic control modules.
• Batteries: Used particularly in electric vehicles such as the Nissan Ariya, where cold resistance is critical for charge retention and operating efficiency.
• Rubber and plastic parts: Seals, gaskets, and interior and exterior plastic components are tested for weather resistance under relevant standards such as Nissan NES M0135.
• Mechanical parts: Fasteners, driveshafts, and suspension components that must be resistant to embrittlement in cold conditions.

Cold resistance is a critical factor for vehicles operating in regions experiencing extreme winters. The Nissan Ariya's -20 degree Celsius cold resistance test demonstrates excellent charge retention and starting performance, highlighting advancements in battery technology. However, real-world conditions can include fluctuating temperatures and humidity, creating additional challenges.

The Nissan NES M7105 standard complements other Nissan standards, including:

• Nissan NES M0135 Weatherability and light resistance test methods for synthetic resin parts
• Nissan NES M0140 Salt spray test
• Nissan NES M0094 Automobile materials flammability test method

Consequently, the Nissan NES M7105 standard cold resistance test is a vital part of ensuring automotive components can withstand extremely low temperatures without compromising safety or performance. By simulating harsh winter conditions, it ensures that all of its vehicles, from internal combustion engines to electric models like the Ariya, meet rigorous reliability standards. Along with other NES standards, this test reflects Nissan's commitment to producing sustainable and safe vehicles for global markets.

Our organization, which has been operating for many years and meticulously follows global developments in science and technology, employs a skilled team and extensive infrastructure to conduct testing, measurement, and analysis in a wide range of areas for businesses across all sectors. In this context, we also provide testing services in accordance with the Nissan NES M7105 standard for vinyl chloride floor coating for automobiles.