Detail of GB/Z 27735-2022

Introduction of GB/Z 27735-2022

Camping tents 1 Scope This document specifies requirements for safety, performance and fitness for use of camping tents (referred to as “tents” throughout). This document applies to camping tents. Note: For caravan awnings, ISO 8936 applies. For terms relating to camping tents and caravan awnings, see ISO 7152. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 4675:1990 Rubber-or plastics coated fabrics - Low-temperature bend test Note: GB/T 18426-2021, Rubber-or plastics-coated fabrics - Low-temperature bend test (ISO 4675:2017, IDT) ISO 105-A02 Textiles - Tests for colour fastness - Part A02: Grey scale for assessing change in colour Note: GB/T 250-2008, Textiles - Tests for colour fastness - Grey scale for assessing change in colour (ISO 105-A02:1993, IDT) ISO 105-B04 Textiles - Tests for colour fastness - Part B04: Colour fastness to artificial weathering: Xenon arc fading lamp test ISO 105-X12 Textiles - Tests for colour fastness - Part X12: Colour fastness to rubbing Note: GB/T 3920-2008, Textiles - Tests for colour fastness - Colour fastness to rubbing (ISO 105-X12:2001, MOD) ISO 139 Textiles - Standard atmospheres for conditioning and testing Note: GB/T 6529-2008, Textiles - Standard atmospheres for conditioning and testing (ISO 139:2005, MOD) ISO 554 Standard atmospheres for conditioning and/or testing - Specifications ISO 811 Textile fabrics - Determination of resistance to water penetration - Hydrostatic pressure test Note: GB/T 4744-2013, Textiles - Testing and evaluation for water resistance - Hydrostatic pressure method (ISO 811-1981,MOD) ISO 2081 Metallic and other inorganic coatings - Electroplated coatings of zinc with supplementary treatments on iron or steel Note: GB/T 9799-2011, Metallic and other inorganic coatings - Electroplated coatings of zinc with supplementary treatments on iron or steel (ISO 2081:2008, IDT) ISO 6925 Textile floor coverings - Burning behaviour - Tablet test at ambient temperature Note: GB/T 11049-2008, Burning behaviour of carpets - Tablet test at ambient temperature (ISO 6925:1982, IDT) ISO 6941:2003 Textile fabrics - Burning behaviour - Measurement of flame spread properties of vertically oriented specimens Note: GB/T 5456-2009, Textiles - Burning behaviour - Flame spread properties of vertically oriented specimens (ISO 6941:2003, MOD) ISO 7771 Textiles - Determination of dimensional changes of fabrics induced by cold-water immersion Note: GB/T 8631-2001, Textiles - Determination of dimensional changes of fabrics induced by cold-water immersion (eqv ISO 7771:1985) ISO 9227 Corrosion tests in artificial atmospheres - Salt spray tests Note: GB/T 10125-2021, Corrosion tests in artificial atmospheres - Salt spray tests (ISO 9227:2017, MOD) ISO 13934-2 Textiles - Tensile properties of fabrics - Part 2: Determination of maximum force using the grab method Note: GB/T 3923.2-2013, Textiles - Tensile properties of fabrics - Part 2: Determination of maximum force using the grab method (ISO 13934-2:1999, MOD) ISO 13937-2 Textiles - Tear properties of fabrics - Part 2: Determination of tear force of trouser shaped test specimens (Single tear method) Note: GB/T 3917.2-2009, Textiles - Tear properties of fabrics - Part 2: Determination of tear force of trouser-shaped test specimens (Single tear method) (ISO 13937-2:2000, IDT) EN 388 Protective gloves against mechanical risks Note: GB 24541-2009, Hand protection - Protective gloves against mechanical risks (EN 388:2003, MOD) 3 Terms and definitions For the purpose of this document, the following terms and definitions apply. 3.1 base area area limited by the outer tent walls which contact the ground Note: This area includes awnings and canopies, but excludes area for guy lines, mud walls and snow skirts. 3.2 outer tent dimensions dimension of the smallest rectangular pitching space required for the tent, excluding guy lines 3.3 inner tent area part of the base area designated for living and sleeping 3.4 inner tent dimensions maximum length and the maximum width of the inner tent measured on the ground 3.5 sleeping capacity number of sleeping berths 3.6 minimum usable weight weight of the tent including the inner sheet and flysheet (where applicable) plus the minimum number of poles, pegs, and guy lines needed for the tent to be erected and used Note: Tent pole bags and peg bags do not need to be included. 3.7 total weight weight of the tent as supplied, including all poles, fabrics, pegs, bags, etc., excluding packaging 3.8 shear and squeeze point point at which the distance between two rigid accessible parts moving relative to each other is less than 18 mm and more than 7 mm in any position during movement 3.9 accessible shear and squeeze point shear and squeeze point to which access can be easily gained when the tent is in its intended configuration for use and for which unintentional contact is foreseeable 3.10 automatic locking mechanism mechanism which engages without guidance by the user and prevents unintended movement 3.11 sealed tent tent that has the groundsheet sewn to the flysheet to form a sealed enclosed area, or a tent with a snowskirt Note 1: Tents with snowskirts are not normally sealed tents but there is the possibility of snow or sand building up on these snowskirts which can restrict air circulation, creating a sealed tent. Note 2: The use of a sealed tent can result in a build-up of harmful gases. 3.12 snowskirt fabric attached to the lower edge of the tent flysheet which is usually designed to sit horizontally on the ground Note: This can be covered with snow, or have rocks placed upon it, in order to secure the tent to the ground. 4 Classification 4.1 Categories of camping tents 4.1.1 Cat. A (lightweight) Tents having a total weight of ≤ 2.5kg per sleeping berth. 4.1.2 Cat. B Tents having a total weight of > 2.5kg per sleeping berth. 4.2 Tent performance level 4.2.1 Level 1 Tent designed for infrequent and short-term use. Although rain resistant, these tents should be used mainly in fair weather. Example: Occasional summer weekend camping. 4.2.2 Level 2 Tent designed for use in mainly moderate weather conditions. Example: Poor (wet and windy) weather conditions; not intended for extreme or mountain conditions. 4.2.3 Level 3 Tent designed for use in all weather conditions. Example: Mountaineering, expeditions, snow-loading or extended residential use. 5 Calculation of sleeping capacity 5.1 General Sleeping capacity is determined by using test area 1 for Cat. A tents (see 5.2 as well as Table 1 and Figure 1) and test area 2 for Cat. B tents (see 5.3) and establishing how many times this test area can be fitted into the sleeping area without overlapping or deforming the fabric of the tent.

Contents of GB/Z 27735-2022

Foreword I Introduction II 1 Scope 2 Normative references 3 Terms and definitions 4 Classification 4.1 Categories of camping tents 4.2 Tent performance level 5 Calculation of sleeping capacity 5.1 General 5.2 Test area 1 for Cat. A tents 5.3 Test area 2 for Cat. B tents 6 Requirements 6.1 General requirements 6.2 Requirements for components 7 Tent accessories 8 Test method 8.1 Strength of guying system 8.2 Corrosion on frame assembly and metal eyelets 8.3 Rain test 8.4 Lateral strength of zip fasteners 8.5 Resistance of plastic sheets to discolouration under the effect of moisture 8.6 Components tests 9 Advice to occupants 10 Information supplied by the manufacturer 10.1 General 10.2 Required information 10.3 Additional information 11 Marking Annex A (Informative) Marking of tents A.1 Cat. A camping tents (lightweight) A.2 Cat. B Annex B (Informative) Label for flame retardant materials Bibliography