Current listof our test methods used
The scope of our accredited testing under accreditation certificate D-PL-11062-01-00 to DIN EN ISO/IEC 17025:2018 includes strength investigations and mechanical function tests, abrasion and pilling tests, construction determinations, chemical fibre analysis and colour-fastness tests on textiles, toys and leather, as well as chemical-analytical examinations of textiles, toys, leather and tattooing products.
Accreditation categories:
Category C (formerly II or **):
Within test areas designated Category C, CTL GmbH is permitted to modify and to further develop new test methods without prior notification to or approval from DAkkS.
Category B (formerly I or *):
Within test areas designated Category B, CTL GmbH is permitted to choose freely among standardised or equivalent test methods without prior notification to or approval from DAkkS.
Category A (formerly III; flexible use of standard methods):
CTL GmbH may, without prior notification to or approval from DAkkS, use the standardised or equivalent test methods listed here with differing edition statuses.
For the standards named below, we always use the currently valid edition. If you wish an older edition to be applied, please contact us.
Here you can find the list of test methods covered by accreditation certificate D-PL-11062-01-00 to DIN EN ISO/IEC 17025:2018, including our flexibly accredited methods:
Excerpt of our test methods used (please refer to the test-method list for the editions used)
- Strength investigations
- Material testing on textiles, toys and leather
- Mechanical function tests
- Abrasion and pilling tests
- Construction determinations
- Flammability tests
- Chemical fibre analysis
- Colour-fastness testing
- Chemical-analytical examinations on textiles and toys
- Sample preparation
- Element determination with ICP-OES on textiles and toys (flexible scope of accreditation: Category B, equivalent to I)
- Determination of aromatic amines from azo colourants by GC/MS, HPLC-DAD and TLC on textiles, leather and toys
- Determination of organic compounds by HPLC-DAD on textiles, toys, leather and tattooing products (flexible scope of accreditation: Category C, equivalent to II)
- Determination of formaldehyde and chromium VI by photometry (UV–Vis) on textiles and toys (flexible scope of accreditation: Category B, equivalent to I)
- Determination of organic compounds by GC/MS on textiles, toys, leather and tattooing products (flexible scope of accreditation: Category C, equivalent to II)
- Other methods on textiles, toys, leather and tattooing products
Material testing on textiles, toys and leather
| Standard | Accreditation | Name | Title |
|---|---|---|---|
| DIN EN ISO 13934-1 |
✔ |
Textiles – tensile properties of fabrics – Part 1: determination of maximum tensile force and elongation by the strip method | Textiles – Tensile properties of fabrics – Part 1: Determination of maximum tensile force and elongation by the strip tensile test |
| DIN EN ISO 13934-2 | ✔ | Textiles – tensile properties of fabrics – Part 2: determination of maximum force using the grab method | |
| DIN EN ISO 13935-2 | ✔ | Textiles – seam tensile tests in fabrics and made-up textiles – Part 2: determination of maximum seam force using the grab method | |
| DIN EN ISO 13936-1 | ✔ | Textiles – determination of the slippage resistance of yarns in woven fabrics – Part 1: fixed seam opening method | |
| DIN EN ISO 13936-2 | ✔ | Textiles – determination of the slippage resistance of yarns in woven fabrics – Part 2: fixed force method | |
| DIN EN ISO 13937-1 | ✔ | Textiles – tear properties of fabrics – Part 1: determination of tear force by the ballistic pendulum (Elmendorf) method | |
| DIN EN ISO 13937-2 | ✔ | Textiles – tear properties of fabrics – Part 2: determination of tear force by the trouser tear method (single-tear method) | |
| DIN EN ISO 13937-3 | ✔ | Textiles – tear properties of fabrics – Part 3: determination of tear force by the wing tear method (single-tear method) | |
| DIN EN 14682 | ✔ | Safety of children’s clothing – cords and drawstrings on children’s clothing – requirements (here: Annex D) | |
| DIN EN 16732 | ✔ | Zip fasteners – specification | |
| DIN CEN TR 16792 DIN SPEC 60008 |
✔ | Safety of children’s clothing – recommendations for the design and manufacture of children’s clothing – mechanical safety (here: Annexes B and C) | |
| DIN CEN/ TS 17394-1 | ✔ | Textiles and textile products – Part 1: safety of children’s clothing – safety of attachment of fixed components to infants’ clothing – specification | |
| DIN EN ISO 20932-1 | ✔ | Textiles – determination of elasticity of fabrics – Part 1: strip tests | |
| DIN EN ISO 3377-1 | Not accredited, but can be carried out at CTL | Leather – physical and mechanical tests – determination of tear strength – Part 1: single-edge tear |
Mechanical function tests
| Standard | Accreditation | Name |
|---|---|---|
| DIN 75201 | ✔ | Determination of the fogging behaviour of materials for automotive interior trim (gravimetric method) |
| DIN EN ISO 4920 | ✔ | Textiles – determination of water-repellent properties (spray method) |
| DIN EN ISO 811 | ✔ | Textiles – determination of resistance to water penetration – hydrostatic pressure test |
| DIN EN ISO 9237 | ✔ | Textiles – determination of air permeability of fabrics |
| DIN EN ISO 14419 | ✔ | Textiles – oleophobicity – testing oil resistance using hydrocarbons |
| DIN EN ISO 15487 | ✔ | Textiles – procedures for assessing the appearance of apparel and other textile end products after domestic washing and drying |
| DIN EN 71-1 | ✔ | Safety of toys – Part 1: mechanical and physical properties |
| SOP 3068 (accredited in-house method) | ✔ | Textiles – non-commercial washing and drying procedures for testing textiles |
Scheuer- und Pillingprüfungen
| Vorschrift | Akkreditierung | Name |
|---|---|---|
| DIN EN ISO 12945-1 | ✔ | Textiles – determination of the propensity of fabrics to surface fuzzing and to pilling – Part 1: pilling box method |
| DIN EN ISO 12945-2 | ✔ | Textiles – determination of the propensity of fabrics to surface fuzzing and to pilling – Part 2: modified Martindale method |
| DIN EN ISO 12947-1 | ✔ | Textiles – determination of the abrasion resistance of fabrics by the Martindale method – Part 1: Martindale abrasion tester |
| DIN EN ISO 12947-2 | ✔ | Textiles – determination of the abrasion resistance of fabrics by the Martindale method – Part 2: determination of specimen breakdown |
| DIN EN ISO 12947-3 | ✔ | Textiles – determination of the abrasion resistance of fabrics by the Martindale method – Part 3: determination of mass loss |
| DIN EN ISO 12947-4 | ✔ | Textiles – determination of the abrasion resistance of fabrics by the Martindale method – Part 4: assessment of appearance change |
| DIN EN 13770 | ✔ | Textiles – determination of the abrasion resistance of knitted footwear (Martindale method) (hier: Martindale Verfahren) |
| BS 8479 | ✔ | Textiles – method for determination of the propensity of fabrics to snagging – rotating chamber method |
| DIN 53863-2 | Not accredited, but can be carried out at CTL | Testing of textiles – abrasion tests of fabrics – circular abrasion method |
Construction determinations
| Standard | Accreditation | Name |
|---|---|---|
| DIN 53830-3 | ✔ | Testing of textiles – determination of the fineness of yarns and plied yarns; single yarns and plied yarns, textured yarns; cut-length method |
| DIN EN 1049-2 | ✔ | Textiles – woven fabrics – construction analysis methods – Part 2: determination of the number of threads per unit length |
| DIN EN 1773 | ✔ | Textiles – textile fabrics – determination of width and length |
| DIN 53806 | Not accredited, but can be carried out at CTL | Testing of textiles – determination of cotton fibre length by the comb sorter method |
| DIN EN 12127 | ✔ | Textiles – textile fabrics – determination of mass per unit area using small samples |
| DIN EN 14971 | ✔ | Textiles – knitted fabrics – determination of stitch density per unit length and per unit area |
| DIN EN ISO 13015 | ✔ | Textiles – fabrics – determination of skew and bow |
| DIN EN ISO 15487 | Not accredited, but can be carried out at CTL | Textiles – procedures for assessing the appearance of apparel and other textile end products after domestic washing and drying |
| DIN EN ISO 5981 | Not accredited, but can be carried out at CTL | Rubber- or plastics-coated textiles – determination of resistance to combined flexing and rubbing |
| DIN 53896 | Not accredited, but can be carried out at CTL | Testing of textiles – artificial ageing by elevated temperature in air or oxygen |
| ISO 1419 | Not accredited, but can be carried out at CTL | Rubber- or plastics-coated textiles – accelerated ageing tests |
| DIN EN 12280-3 | Not accredited, but can be carried out at CTL | Rubber- or plastics-coated textiles – accelerated ageing tests – Part 3: environmental ageing |
| DIN EN 12280-1 | Not accredited, but can be carried out at CTL | Rubber- or plastics-coated textiles – accelerated ageing tests – Part 1: heat ageing |
| DIN EN ISO 32100 | Not accredited, but can be carried out at CTL | Rubber- or plastics-coated textiles – physical and mechanical tests – determination of flex resistance by the flexometer method |
| DIN EN ISO 5402-1 | Not accredited, but can be carried out at CTL | Leather – determination of flex resistance – Part 1: flexometer method |
| DIN 53359 | Not accredited, but can be carried out at CTL | Testing of artificial leather and similar sheet materials – repeated flexing test |
| DIN EN ISO 2411 | Not accredited, but can be carried out at CTL | Rubber- or plastics-coated textiles – determination of the adhesion strength of coatings |
| DIN EN 15977 | Not accredited, but can be carried out at CTL | Rubber- or plastics-coated textiles – mechanical properties – determination of elongation under load and residual deformation |
| SOP 3026 (Hausmethode) | Not accredited, but can be carried out at CTL | Impermeability to down, feathers and fibres |
| DIN EN ISO 11644 | Not accredited, but can be carried out at CTL | Leather – testing the adhesion strength of finishes |
Flammability tests
| Standard | Accreditation | Name |
|---|---|---|
| DIN 75200 | ✔ | Determination of the burning behaviour of materials for automotive interior trim |
| DIN EN 1103 | ✔ | Textiles – clothing textiles – detailed procedure for determining burning behaviour |
| DIN EN ISO 12952-1 | ✔ | Textiles – assessment of the ignitability of bedding – Part 1: ignition source, smouldering cigarette |
| DIN EN 14878 | ✔ | Textiles – burning behaviour of children’s nightwear – requirements |
| DIN EN 71-2 | ✔ | Safety of toys – Part 2: flammability |
| ASTM E 1353-08 | ✔ | Standard test methods for cigarette ignition resistance of components of upholstered furniture |
| TB 117 | ✔ | Requirements, test procedure and apparatus for testing the smoulder resistance of materials used in upholstered furniture |
| BS 5852 Source 0 | Not accredited, but can be carried out at CTL | Assessment of the ignitability of upholstered seating by smouldering and flaming ignition sources (British Standard); crib 0 = cigarette |
| BS 5852 Source 1 | Not accredited, but can be carried out at CTL | Assessment of the ignitability of upholstered seating by smouldering and flaming ignition sources (British Standard); Source 1: simulated match A burner |
| DIN EN 1021-1 | Not accredited, but can be carried out at CTL | Furniture – assessment of the ignitability of upholstered furniture – Part 1: smouldering cigarette as ignition source |
| DIN EN 1021-2 | Not accredited, but can be carried out at CTL | Furniture – assessment of the ignitability of upholstered furniture – Part 2: gas flame equivalent to a match as ignition source |
| DIN EN ISO 12952-1 | Not accredited, but can be carried out at CTL | Textiles – assessment of the ignitability of bedding – Part 1: ignition source, smouldering cigarette |
| DIN EN ISO 15025 | Not accredited, but can be carried out at CTL | Protective clothing – protection against flame – test method for limited flame spread |
Chemical fibre analysis
| Standard | Accreditation | Name |
|---|---|---|
| DIN 54204 | ✔ | Testing of textiles. Quantitative determination of components of binary mixtures, wool with other fibres, caustic potash method |
| DIN 54221 | ✔ | Testing of textiles. Quantitative determination of components of binary mixtures, polyamide 6.6 or polyamide 6 with other fibres, hydrochloric acid method |
| DIN EN ISO 1833-1 | ✔ | Textiles. Quantitative chemical analysis. Part 1: General principles of testing |
| DIN EN ISO 1833-4 | ✔ | Textiles. Quantitative chemical analysis. Part 4: Mixtures of certain protein fibres with certain other fibres (hypochlorite method) |
| DIN EN ISO 1833-6 2019-07 | ✔ | Textiles. Quantitative chemical analysis. Part 6: Mixtures of viscose or certain cupro, modal or lyocell fibres and cotton fibres (formic acid/zinc chloride method) |
| DIN EN ISO 1833-11 | ✔ | Textiles. Quantitative chemical analysis. Part 11: Mixtures of cellulose and polyester fibres (sulphuric acid method) |
| DIN EN ISO 1833-12 | ✔ | Textiles. Quantitative chemical analysis. Part 12: Mixtures of polyacrylic fibres, specified modacrylic or chlorofibres, specified elastanes and certain other fibres (dimethylformamide method) |
| DIN EN ISO 1833-14 | ✔ | Textiles. Quantitative chemical analysis. Part 14: Mixtures of acetate fibres and certain chlorofibres (acetic acid method) |
| DIN EN ISO 1833-20 | ✔ | Textiles. Quantitative chemical analysis. Part 20: Mixtures containing elastane fibre with certain other fibres (dimethylacetamide method) |
| AATCC TM 20 | ✔ | Test Method for Fibre Analysis: Qualitative |
| AATCC TM 20A | ✔ | Test Method for Fibre Analysis: Quantitative |
| SOP 7027 (accredited in-house method) | ✔ | Fibre analysis — qualitative |
Colour fastness testing
| Standard | Accreditation | Name |
|---|---|---|
| DIN 53160-1 | ✔ | Determination of the colour fastness of articles in everyday use – Part 1: test with artificial saliva |
| DIN 53160-2 | ✔ | Determination of the colour fastness of articles in everyday use – Part 2: test with artificial sweat |
| DIN 54056 | ✔ | Testing the colour fastness of textiles – determination of the colour fastness of dyeings and prints to sublimation during storage |
| DIN EN ISO 105-B02 | ✔ | Textiles – tests for colour fastness – Part B02: colour fastness to artificial light, xenon arc |
| DIN EN ISO 105-B04 | ✔ | Textiles – tests for colour fastness – Part B04: colour fastness to artificial weathering, xenon arc |
Chemical-analytical tests on textiles and toys
Sample preparationSample preparation by extractions on textiles and toys (flexible scope of accreditation: Category C, equivalent to II)
| Standard | Accreditation | Name |
|---|---|---|
| SOP 4029 (accredited in-house method) | ✔ | Extraction of heavy metals from textiles with artificial sweat solution according to DIN EN ISO 105-E04 |
| DIN EN ISO 17072-1 | ✔ | Leather – chemical determination of metal content – Part 1: extractable metals |
Sample preparation using microwave acid digestion for elemental analysis on textiles, toys, leather and tattooing products (flexible scope of accreditation: Category B, equivalent to I)
| Standard | Accreditation | Name |
|---|---|---|
| DIN EN 16711-1 | ✔ | Textiles – determination of metal content – Part 1: determination of metals by microwave digestion (deviation: extension to include the tattooing-product matrix) |
| ASU K 84.00-29 (equivalent to BVL B) | ✔ | Investigation of cosmetic products – pressure digestion to determine elements in cosmetic products and tattooing products |
Sample preparation by testing for nickel release
| Standard | Accreditation | Name |
|---|---|---|
| DIN EN 12472 | ✔ | Method for the simulation of wear and corrosion for the detection of nickel release from coated items |
| ASU B 82.02-7 (equivalent to BVL B) | ✔ | Examination of articles of daily use – simulation of wear and corrosion for the detection of nickel release from coated items |
Element determination by ICP-OES on textiles and toys (flexible scope of accreditation: Category B, equivalent to I)
| Standard | Accreditation | Name |
|---|---|---|
| DIN EN 1811 | ✔ | Reference test method for determining nickel release from all posts inserted into pierced body parts and from products intended for direct and prolonged contact with the skin |
| DIN EN ISO 11885 | ✔ | Water quality — determination of selected elements by inductively coupled plasma optical emission spectrometry (ICP-OES) (deviation: Chapter 1 — element determination in migrates and sweat eluates) |
| DIN EN 71-3 | ✔ | Safety of toys — Part 3: migration of certain elements (deviation: Chapter 1 — Category III only, excluding chromium(VI)) |
| ASU B 82.02-6 (equivalent to BVL B) | ✔ | Examination of articles of daily use — reference test method for determining nickel release from all posts inserted into pierced body parts and from products intended for direct and prolonged contact with the skin |
| ASU K 84.00-32 (equivalent to BVL K) | ✔ | Examination of cosmetic products — sampling of cosmetic products — Annex Method I of the First Commission Directive of 22 December 1980 on analytical methods for control of the composition of cosmetic products (80/1335/EEC) |
Determination of aromatic amines from azo colourants by GC/MS, HPLC-DAD and TLC on textiles, leather and toys
| Standard | Accreditation | Name |
|---|---|---|
| DIN EN 14362-1 | ✔ | Textiles — methods for the determination of certain aromatic amines derived from azo colourants — Part 1: detection of the use of certain azo colourants with and without extraction of the fibres |
| DIN EN 14362-3 | ✔ | Textiles — methods for the determination of certain aromatic amines derived from azo colourants — Part 3: detection of the use of certain azo colourants which can release 4-aminoazobenzene |
| DIN EN ISO 17234-1 | ✔ | Leather — chemical tests for the determination of certain azo colourants in dyed leathers — Part 1: determination of certain aromatic amines derived from azo colourants |
| DIN EN ISO 17234-2 | ✔ | Leather — chemical tests for the determination of certain azo colourants in dyed leathers — Part 2: determination of 4-aminoazobenzene |
| ASU B 82.02-2 (equivalent to BVL B) | ✔ | Examination of articles of daily use — procedure for the determination of certain aromatic amines from azo colourants in textiles — Part 1: detection of the use of certain azo colourants with and without extraction of the fibres |
| ASU B 82.02-3 (equivalent to BVL B) | ✔ | Examination of articles of daily use — determination of certain aromatic azo colourants in dyed leathers — Part 1: determination of certain aromatic amines from azo colourants |
| ASU B 82.02-9 (equivalent to BVL B) | ✔ | Examination of articles of daily use — determination of certain azo colourants in dyed leathers — Part 2: determination of 4-aminoazobenzene |
Determination of organic compounds by HPLC-DAD on textiles, toys, leather and tattooing products (flexible scope of accreditation: Category C, equivalent to II)
| Standard | Accreditation | Name |
|---|---|---|
| DIN 54231 | ✔ | Textiles — detection of disperse dyes |
| DIN EN ISO 18218-1 | ✔ | Leather — determination of ethoxylated alkylphenols — Part 1: direct method (deviation: Clause 4.8, Annex A.2 — detection using DAD) |
| DIN EN ISO 18254-1 | ✔ | Textiles — methods for the detection and determination of alkylphenol ethoxylates (APEO) — Part 1: method using HPLC-MS (deviation: Clause 4.2 — detection using DAD) |
| ASU B 82.02-10 (equivalent to BVL B) | ✔ | Examination of articles of daily use — detection of disperse dyes in textiles (deviation: extension to include the tattooing-product matrix) |
| SOP 4053 (accredited in-house method) | ✔ | Determination of alkylphenol ethoxylates, nonyl- and octylphenol after extraction with methanol by HPLC-DAD |
| SOP 4055 (accredited in-house method) | ✔ | Textiles — detection of disperse dyes — determination of allergenic and carcinogenic dyes in textiles, leather and tattooing products after extraction with acetonitrile/ethanol by HPLC-DAD |
| DIN EN 17226-1 | ✔ | Leather — chemical determination of formaldehyde content — Part 1: method by liquid chromatography |
Determination of formaldehyde and chromium VI by photometry (UV–VIS) on textiles and toys (flexible scope of accreditation: Category B, equivalent to I)
| Standard | Accreditation | Name |
|---|---|---|
| DIN EN ISO 14184-1 | ✔ | Textiles – determination of formaldehyde content – Part 1: free and hydrolysed formaldehyde (water-extraction method) |
| DIN EN ISO 17075-1 | ✔ | Leather – determination of chromium(VI) content in leather – Part 1: colorimetric method |
| ASU B 82.02-1 (equivalent to BVL B) | ✔ | Examination of articles of daily use – determination of formaldehyde release from textile articles |
| ASU B 82.02-11 (equivalent to BVL B) | ✔ | Examination of articles of daily use – detection of chromium(VI) in leather articles – photometric method |
Examination of articles of daily use – detection of chromium(VI) in leather articles – photometric method
| Standard | Accreditation | Name |
|---|---|---|
| DIN EN 17137 | ✔ | Textiles — determination of the content of compounds based on chlorobenzene and chlorotoluene |
| DIN EN ISO 14389 | ✔ | Textiles — determination of phthalate content — tetrahydrofuran method |
| DIN CEN ISO/TS 16179; DIN SPEC 91179 | ✔ | Footwear — critical substances potentially present in shoes and footwear components — determination of organotin compounds in footwear materials (deviation: Clause 7.9 — quantification using an external standard) |
| DIN EN ISO 16189 | ✔ | Footwear — critical substances potentially present in shoes and footwear components — test method for the quantitative determination of dimethylformamide in footwear materials |
| AfPS GS PAK | ✔ | Testing and assessment of polycyclic aromatic hydrocarbons (PAHs) for the award of the GS mark (deviation: testing only here, extended to include the tattooing-product matrix) |
| SOP 4309 (accredited in-house method) | ✔ | Determination of chlorophenols (mono to penta) and o-phenylphenol in textiles and leather after derivatisation by GC/MS |
Other methods on textiles, toys, leather and tattooing products
| Standard | Accreditation | Name |
|---|---|---|
| DIN 54278-1 | ✔ | Testing of textiles – deposits and accompanying substances – Part 1: determination of substances soluble in organic solvents |
| DIN EN ISO 3071 | ✔ | Textiles – determination of pH of aqueous extract |
| AATCC Test Method 79 | ✔ | Absorbency of textiles |
| SOP 4192 (accredited in-house method) | ✔ | Formaldehyde, qualitative detection (spot test with carbazole/sulphuric acid) |
| DIN EN ISO 4045 | ✔ | Leather – chemical tests – determination of pH and difference figure |
| AATCC Test Method 213 | ✔ | Test method for vertical wicking rate of textiles: at specified times |
| DIN 54285 | Not accredited, but can be carried out at CTL | Testing of textiles – determination of sizing content |
| SOP 4292 (in-house method) | Not accredited, but can be carried out at CTL | Optical brighteners, qualitative detection |
| SOP 9000 (in-house method) | Not accredited, but can be carried out at CTL | REACH – candidate list – SVHC substances – textiles |
| DIN EN ISO/CIE 11664-4 | Not accredited, but can be carried out at CTL | Colorimetry – Part 4: CIE 1976 colour space |
