CPSD-HL-01020-MTHD Seats - Front Stability

In the CPSD-HL-01020-MTHD standard developed within the scope of consumer protection and safety by Bureau Veritas, a global organization working in the fields of independent surveillance, inspection, certification and risk prevention of French origin, the requirements for determining the preliminary stability in seats and chairs are explained and a test method is defined. .

This standard includes different test methods according to the number of seats:

• For multiple seats: Swing force is measured within a 45 degree inclination of the test platform. The tipping force should not be less than 40 percent of the total wheelchair weight.
• For single seat: It should not be overbalanced when a horizontal pulling force of 60 kg is applied to the bottom of a 6 kg load centered 2 mm from the midpoint of the specimen edge.

In these tests, the seat or chair sample is placed on the test table and the front legs are blocked. A specific load is then applied to the seat or chair surface and the specimen is checked for bending forward to assess the forward stability of the specimen. In these tests, a chair front stability tester is generally used to test the forward stability of the chairs.

The stability tests of armchairs and chairs are also based on the ANSI/BIFMA X5.1 standard published jointly by the American National Standards Institute (ANSI) and the Commercial and Institutional Furniture Manufacturers Association (BIFMA). This set of standards, in which the requirements for general-purpose chairs are defined and test methods are explained, includes 20 test methods. Among these, ANSI/BIFMA X5.1-7 standard describes the requirements for stability testing for seats and chairs. The purpose of this test method is to evaluate the ability of seats and chairs to withstand extreme loads. During these tests, special test machines are used where tests such as vertical pressure test, destruction test and fatigue test are applied. In these machines, repeated pressure loading is performed in the setting of the force test cycle. The pressure and the number of cycles of the tests are determined according to the size of the holding pressure.

Among the numerous test, measurement, analysis and evaluation studies it provides for businesses in various sectors, our organization also provides pre-stability testing services on seats and chairs, within the scope of CPSD-HL-01020-MTHD standard, with its trained and expert staff and advanced technological equipment.