BS EN 1729-1:2015 Furniture – Chairs and tables for educational institutions Part 1: Functional dimensions

BS EN 1729-1:2015 pdf download.Furniture – Chairs and tables for educational institutions Part 1: Functional dimensions.
This European Standard specifies functional dimensions and markings for all chairs, stools and tables, for educational institutions, including fixed and adjustable chairs and tables.
It applies to both un-upholstered and upholstered chairs and stools as well as to both non-swivel and swivel chairs. It applies to furniture for use with laptop computers or portable devices.
It does not apply to ranked seating or special purpose workstations.
It does not apply to furniture used by teaching personnel.
Annex A (normative) includes single-sloped chairs and associated tables.
Annex B (normative) includes double-sloped high chairs and associated tables.
Annex C (normative) includes standing-height tables.
Annex D (normative) includes tall chairs and associated tables.
Annex E (normative) includes stools and associated worksurfaces.
Annex F (normative) includes measurement methods.
Annex G (informative) includes guidance on size marks for adjustable chairs and tables.
Annex H (informative) includes guidance on calculating heights of double-sloped chairs and associated tables.
Annex I (informative) includes a rationale for functional dimensions.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
EN 1729-2, Furniture – Chairs and tables for educational institutions – Part 2: Safety requirements and test methods
3 Terms and definitions
For the purposes of this docunient, the following terms and definitions apply.
3.1 median plane vertical plane running from front to rear through the centre of the seat, dividing the chair into two equal parts Note 1 to entry: See Figure 1.
3.2  transverse plane vertical plane perpendicular to the median plane passing through the centre of the seatThe functional dimensions and corresponding size marks and colour codes for chairs with slopes between -5° and +70 and associated tables shall be as specified in the normative Annex A.
The functional dimensions and corresponding size marks and colour codes for high chairs with doublesloped seats and associated tables shall be as specified in the normative Annex B.
The functional dimensions and corresponding size marks and colour codes for standing-height tables shall be as specified in normative Annex C.
The functional dimensions and corresponding size marks and colour codes for tall chairs shall be as specified in the normative Annex D. Tables suitable for tall chairs cannot be size marked. Tables shall correspond to the height of tall chairs as in Table D.2.
The functional dimensions and corresponding size marks and colour codes for stools shall be as specified in the normative Annex E. Worksurfaces shall correspond to the height of stools as in Table E.3.
Adjustable and multi-size furniture shall fulfil the requirements specified in Annex A, Annex B, Annex C, Annex D or Annex E.
The stature and popliteal height ranges shown in Table A.1. Table A.2, Table B.1, Table B.2. Table C.1 and Table D.1 do not Include any allowance for shoes. All chair and table heights Include an allowance for shoes.
Assessment needs to be carried out according to EN 1729-1 before being tested according to EN 1729-2.
5 Marking
Chairs and tables in Annex A shall he marked as 0 to 7. Chairs and tables in Annex B shall be marked as BO to B7. Standing-height tables in Annex C shall be marked as CO to C7. Tall chairs in Annex D shall be marked as DO to D7. Stools In Annex E shall be marked as EO to E7.
The marking of fixed and adjustable chairs and tables shall be legible and indelible and shall include at least the following information:
a) size mark or colour code or both, as specified in Annex A, Annex B, Annex C, Annex D or Annex E;
b) marking on adjustable furniture of the size marks covered;
c) name and/or trade name and/or mark and address of the manufacturer or his or her authorized representative in full or in abbreviated form, provided the abbreviation enables the manufacturer and/or his or her authorized representative to be identified;
d) date of production by stating at least the year and month of production.
Tall chairs shall also be marked with a reference where to find information on the table height they are intended to be used with. This information shall be provided on a label directly or via a web address, QR-code or other suitable application. Tables that are intended for use with tall chairs shall be marked with their height (distance from the floor to the top of the table). This information shall he provided on a label directly or via a web address, QR-code or other suitable application.
6 Instructions
The instructions shall be submitted with the furniture in the official languages(s) of the country where the furniture is sold. They can be given affixed to the furniture, on a label, in a leaflet or in the instructions for use. They shall include at least the following:
a) Size mark reference: size mark identification shall be referenced to this European Standard;
b) Maintenance instructions: including information on maintenance and cleaning;
c) Installation Instructions for multi-size furniture: instructions on how to adjust the furniture to fit a specific group of pupils;
d) Adjustability information: instructions for the users (pupils) of adjustable furniture shall include information on how to operate the adjustments and information on how to recognize correct settings and therefore a good posture;
e) Warning concerning the hazard when working with gas lifts: “Attention: Any repair or service work with gas cylinders shall be carried out by trained persons only.”
lithe height adjustment is continuous, there is no need to show each size mark explicitly. It is sufficient to have an indication showing the size marks it covers and to have a set of clear instructions, with drawings, on how to adjust the chair to achieve a good posture. This also applies to tables.
NOTE Appropriate drawings or pictures can be used to reinforce the information in instruction leaflets.
7 Approvalof range
In order to approve a range of chairs, stools or tables, each size mark within the range shall be measured separately.
When assessing table top dimensions for a range of tables, if there are six or fewer different table top shapes or sizes in the range, all table tops shall be measured. If there are more than six different table top shapes or sizes, six shall be measured and the additional table top shapes or sizes shall be assessed from the manufacturer’s drawings of them. The drawings shall show full details (dimensions) of each table top and its under frame structure. The information provided shall be used to assess whether the size citable top and legroom clearance fulfil the requirements of the standard.
The test report shall state which table tops have been measured and which have been assessed from drawings. These drawings shall be attached to the report.BS EN 1729-1 pdf download.BS EN 1729-1:2015 Furniture – Chairs and tables for educational institutions Part 1: Functional dimensions