Textile
Leather
Polymers

Chapter 1: ZDHC MRSL

1A. Alkylphenol (AP) and Alkylphenol Ethoxylates (APEOs): including all isomers

Potential Uses
APEOs can be used as or found in: detergents, scouring agents, spinning oils, wetting agents, softeners, emulsifier/dispersing agents for dyes and printing formulations, impregnating agents, de-gumming agents / auxiliaries for silk production, dyes and pigment preparations, polyester padding and down/feather fillings.

Substance
Nonylphenol (NP), mixed isomers

Guidance Sheet
Nonylphenol ethoxylates (NPEO)

Guidance Sheet
Octylphenol (OP), mixed isomers

Guidance Sheet
Octylphenol ethoxylates (OPEO)

Guidance Sheet

1B. Anti-microbials and Biocides

Potential Uses
These chemicals have antimicrobial properties, which can be used to preserve formulations, preserve articles to which they are intentionally applied, or provide customers with benefits like odour control or insect repellency.

Substance
Dimethylfumarate (DMFu)

O-Phenylphenol

(+salts)

Note: OPP is permitted for use as a preservative in the formulations under BPR PT6.

Permethrin

Note: In many situations, deliberate use is not permitted. However, it should be noted that, Permethrin is approved for use on wool curtains, carpets, rugs and floor coverings under BPR PT 18. Permethrin is permitted for usage in personal protective equipment (PPE) (EU 2016/425, EPA registered product, APVMA registered product, PMRA registered product, etc.). Additionally, it is sometimes only allowed for specific purposes, such as military ones. All efforts should be made to maximise the chemical finish durability and to minimise losses to the environment.

Triclosan

1C. Chlorinated Paraffins

Potential Uses
These are occasionally used as flame retardants and PVC additives in certain industries. These are also used as fat liquoring agents in leather processing.

Substance
Short-chain Chlorinated Paraffins (SCCPs)

(C10-C13)

Guidance Sheet
Medium-chain Chlorinated Paraffins (MCCPs)

(C14-C17)

Guidance Sheet

1D. Chlorobenzenes and Chlorotoluenes

Potential Uses
Chlorobenzenes and chlorotoluenes (chlorinated aromatic hydrocarbons) can be used as carriers in the dyeing process of polyester or wool/polyester fibres. They can also be used as solvents. Additionally, they can be found in colourants and specialty chemicals as an impurity.

Substance
1,2-Dichlorobenzene

Guidance Sheet
Other isomers of mono-, di-, tri-, tetra-, penta- and hexa- Chlorobenzene and mono-, di-, tri-, tetra- and penta- chlorotoluene

Guidance Sheet

1E. Chlorophenols

Potential Uses
Chlorophenols are polychlorinated compounds used as preservatives or pesticides. Pentachlorophenol (PCP) and tetrachlorophenol (TeCP) have been used in the past to prevent mould when storing/ transporting, raw hides and leather. They are now regulated and should not be used.

Substance
2-Chlorophenol1

Guidance Sheet
3-Chlorophenol1

Guidance Sheet
4-Chlorophenol1

Guidance Sheet
2,3-Dichlorophenol1

Guidance Sheet
2,4-Dichlorophenol1

Guidance Sheet
2,5-Dichlorophenol1

Guidance Sheet
2,6-Dichlorophenol1

Guidance Sheet
3,4-Dichlorophenol1

Guidance Sheet
3,5-Dichlorophenol1

Guidance Sheet
2,3,4-Trichlorophenol1

Guidance Sheet
2,3,5-Trichlorophenol1

Guidance Sheet
2,3,6-Trichlorophenol1

Guidance Sheet
2,4,5-Trichlorophenol1

Guidance Sheet
2,4,6-Trichlorophenol1

Guidance Sheet
3,4,5-Trichlorophenol1

Guidance Sheet
2,3,4,5-Tetrachlorophenol2

Guidance Sheet
2,3,4,6-Tetrachlorophenol2

2,3,5,6-Tetrachlorophenol2

Pentachlorophenol (PCP)

Guidance Sheet

1F. Dyes - Allergenic Disperse Dyes

Potential Uses
Disperse dyes are a class of water- insoluble dyes that penetrate the fibre system of synthetic or manufactured fibres and are held in place by physical forces without forming chemical bonds. Disperse dyes are used in synthetic fibre dyeing (e.g. polyester, acetate, polyamide). Restricted disperse dyes are suspected of causing allergic reactions and should no longer be used for dyeing of textiles.

Substance
C.I. Disperse Blue 7

Guidance Sheet
C.I. Disperse Blue 26

Guidance Sheet
C.I. Disperse Blue 35

Guidance Sheet
C.I. Disperse Blue 102

Guidance Sheet
C.I. Disperse Blue 106

Guidance Sheet
C.I. Disperse Blue 124

Guidance Sheet
C.I. Disperse Brown 1

Guidance Sheet
C.I. Disperse Orange 1

Guidance Sheet
C.I. Disperse Orange 3

Guidance Sheet
C.I. Disperse Orange 37/59/76

Guidance Sheet
C.I. Disperse Red 1

Guidance Sheet
C.I. Disperse Red 11

Guidance Sheet
C.I. Disperse Red 17

Guidance Sheet
C.I. Disperse Yellow 1

Guidance Sheet
C.I. Disperse Yellow 3

Note: In addition to having skin sensitising characteristics, C.I. Disperse Yellow 3 is suspected to be carcinogenic.

Guidance Sheet
C.I. Disperse Yellow 9

Guidance Sheet
C.I. Disperse Yellow 39

Guidance Sheet
C.I. Disperse Yellow 49

Guidance Sheet

1G. Dyes – Carcinogenic or Equivalent Concern

Potential Uses
Most of these substances are regulated and should no longer be used for dyeing of textiles and leather.
For some dyes, it is not possible to directly detect the dye and it must be done by indirect methods as explained in the DIN standard.

Substance
C.I. Acid Red 26

Guidance Sheet
C.I. Acid Violet 49

Guidance Sheet
C.I. Basic Blue 26

(with Michler’s Ketone > 0.1%)

Guidance Sheet
C.I. Basic Green 4 (Malachite Green Chloride)

Guidance Sheet
C.I. Basic Green 4 (Malachite Green Oxalate)

Guidance Sheet
C.I. Basic Green 4 (Malachite Green)

Guidance Sheet
C.I. Basic Green 4 leuco base

C.I. Basic Red 9

Guidance Sheet
C.I. Basic Violet 14

Guidance Sheet
C.I. Basic violet 3

(with Michler’s Ketone > 0.1%)

Guidance Sheet
C.I. Direct Black 38

Guidance Sheet
C.I. Direct Blue 6

Guidance Sheet
C.I. Direct Red 28

Guidance Sheet
C.I. Disperse Blue 1

Guidance Sheet
C.I. Disperse Blue 3

Guidance Sheet
C.I. Disperse Orange 11

Guidance Sheet

1H. Flame Retardants

Potential Uses
Flame retardant chemicals are deliberately applied to meet legal and contractual flammability standards.
The use of the flame retardants listed below, or any halogenated flame retardant, is not permitted (for fashion, sport or outdoor clothing and apparel and home textiles).
It should be noted that there may be certain critical (technical textile) end uses where legally or contractually mandated standards may only be achieved using these substances (e.g. military, medical, protective clothing, transportation). The formulations will always be deemed ZDHC MRSL NON-CONFORMANT and it is intended that the ZDHC Supplier Platform will appraise the end uses of any flame retardants within an inventory.

Substance
2,2-Bis(bromomethyl)-1,3-propanediol (BBMP)

Guidance Sheet
Bis(2,3-dibromopropyl) phosphate (BDBPP)

Guidance Sheet
Boric acid

Guidance Sheet
Decabromobiphenyl (DecaBB)

Guidance Sheet
Decabromodiphenyl ether (DecaBDE)

Guidance Sheet
Diboron trioxide

Guidance Sheet
Dibromobiphenyls (DiBB)

Guidance Sheet
Disodium octaborate

Guidance Sheet
Disodium tetraborate, anhydrous

Guidance Sheet
Heptabromodiphenyl ether (HeptaBDE)

Guidance Sheet
Hexabromocyclodecane (HBCDD)

Guidance Sheet
Hexabromodiphenyl ether (HexaBDE)

Guidance Sheet
Monobromobiphenyls (MonoBB)

Guidance Sheet
Monobromodiphenyl ether (MonoBDEs)

Guidance Sheet
Nonabromobiphenyls (NonaBB)

Guidance Sheet
Nonabromodiphenyl ether (NonaBDE)

Guidance Sheet
Octabromobiphenyls (OctaBB)

Guidance Sheet
Octabromodiphenyl ether (OctaBDE)

Guidance Sheet
Pentabromodiphenyl ether (PentaBDE)

Guidance Sheet
Tetraboron disodium heptaoxide, hydrate

Guidance Sheet
Tetrabromobisphenol A (TBBPA)

Guidance Sheet
Tetrabromobisphenol A bis(2,3-dibromopropyl ether)

Guidance Sheet
Tetrabromodiphenyl ether (TetraBDE)

Guidance Sheet
Tri-o-cresyl phosphate

Tribromodiphenyl ethers (TriBDEs)

Guidance Sheet
Trimethyl phosphate

Tris(1-aziridinyl)phosphine oxide (TEPA)

Guidance Sheet
Tris(1,3-dichloro-isopropyl) phosphate (TDCP)

Guidance Sheet
Tris(2-chloro-1-methylethyl) phosphate (TCPP)

Guidance Sheet
Tris(2-chloroethyl) phosphate (TCEP)

Guidance Sheet
Tris(2,3,-dibromopropyl) phosphate (TRIS)

Guidance Sheet
Trixylyl phosphate (TXP)

1I. Glycols / Glycol Ethers

Potential Uses
In apparel and footwear, glycol ethers / glycol esters have a wide range of uses including as solvents for finishing/cleaning, printing agents and dissolving and diluting fats, oils and adhesives (e.g. in degreasing or cleaning operations).

Substance
2-Ethoxyethanol

2-Ethoxyethyl acetate

2-Methoxyethanol

2-Methoxyethyl acetate

2-Methoxypropanol

2-Methoxypropyl acetate

Bis(2-methoxyethyl) ether

Ethylene glycol dimethyl ether

Triethylene glycol dimethyl ether

1J. Halogenated Solvents

Potential Uses
In apparel and footwear, halogenated solvents are used as finishing/ cleaning and printing agents, for dissolving/ diluting fats, oils and adhesives (e.g. in degreasing or cleaning operations).
Formulations containing any of the listed solvents above the published limits are NON CONFORMANT with the ZDHC MRSL. Despite the advancement of water-based systems, there are a small number of solvent-based systems that remain the most prevalent in the industry and ZDHC recognises that it will take time to phase these out completely.
ZDHC guidance is to avoid the deliberate use of listed solvents wherever possible, with a transition to water-based formulations being preferable, and to ensure that worker exposure and emissions are minimised.
It is intended that the ZDHC Supplier Platform will assess the implementation of best practices for emission and exposure control as well as the usage of water-based formulations at a facility.
Note: There are some solvent-based technologies that are generally regarded as having lower overall environmental impacts than aqueous alternatives (e.g. solvent scouring) and every specific scenario will be judged on its merits through the ZDHC Supplier Platform.

Substance
1,2-Dichloroethane

Benzyl chloride

Methylene chloride

Tetrachloroethylene

EC* - Emission and Exposure Controls best practices are in place

Trichloroethylene

1K. Organic Solvents

Potential Uses
In apparel and footwear, VOCs / solvents are used in processes such as coatings and glues/adhesives.
Formulations containing any of the listed solvents above the published limits are NON CONFORMANT with the ZDHC MRSL. Despite the advancement of water-based systems, there are a small number of solvent-based systems that remain the most prevalent in the industry and ZDHC recognises that it will take time to phase these out completely.
ZDHC guidance is to avoid the deliberate use of listed solvents wherever possible, with a transition to water-based formulations being preferable, and to ensure that worker exposure and emissions are minimised.
It is intended that the ZDHC Supplier Platform will assess the implementation of best practices for emission and exposure control as well as the usage of water-based formulations at a facility.
Note: There are some solvent-based technologies that are generally regarded as having lower overall environmental impacts than aqueous alternatives (e.g. solvent scouring) and every specific scenario will be judged in its merits through the ZDHC Supplier Platform.

Substance
Benzene

Guidance Sheet
Cresol (all isomers)

o-Cresol

m-Cresol

p-Cresol

Guidance Sheet
N,N-dimethylacetamide (DMAC)

EC* - Emission and Exposure Controls best practices are in place

N,N-Dimethylformamide (DMFa)

EC* - Emission and Exposure Controls best practices are in place

N-Ethyl-2 pyrrolidone (NEP)

EC* - Emission and Exposure Controls best practices are in place

N-Methyl-2-Pyrrolidone (NMP)

EC* - Emission and Exposure Controls best practices are in place

Toluene

EC* - Emission and Exposure Controls best practices are in place

Xylene (all isomers)

o-Xylene

m-Xylene

p-Xylene

EC* - Emission and Exposure Controls best practices are in place

Guidance Sheet

1L. Organotin Compounds

Potential Uses
Organotins are a class of chemicals combining tin and organics such as butyl and phenyl groups. Organotins are predominantly found in the environment as antifoulants in marine paints, but they can also be used as biocides (e.g. antibacterials), catalysts in plastic and glue production and heat stabilisers in plastics/rubber. In textiles and apparel, organotins are associated with plastics/rubber, inks, paints, metallic glitter, polyurethane products and heat transfer material.

Substance
Dibutyltin (DBT)

* In order to be able to optimise performance characteristics of some leather finishes, it is sometimes desirable to use PU thickeners and create formulations on-site rather than purchasing pre-mixed formulations from chemical suppliers. In these instances, there is a more lenient limit of DBT for the thickeners themselves, but the thickeners must not be used in quantities >20% in tailored formulations.

Guidance Sheet
Dipropyltin compounds (DPT)

Guidance Sheet
Mono- and tri- butyltin derivatives

Guidance Sheet
Mono-, di- and tri- methyltin derivatives

Guidance Sheet
Mono-, di- and tri- octyltin derivatives

Guidance Sheet
Mono-, di- and tri- phenyltin derivatives

Guidance Sheet
Tetrabutyltin compounds (TeBT)

Guidance Sheet
Tetraethyltin compounds (TeET)

Tetraoctyltin compounds (TeOT)

Guidance Sheet
Tricyclohexyltin (TCyHT)

Guidance Sheet
Tripropyltin Compounds (TPT)

Guidance Sheet

1M. Other/Miscellaneous Chemicals

These are other chemicals / substances / process with a usage ban.

Substance
(Free) Aniline

Used in the manufacture of Indigo and some azo dyes. Residues from manufacturing can remain in the formulation. For all dyes other than indigo, it is important that non-reductive methods are used so that only the free aniline is analysed rather than that which could be formed by the cleavage of a dye molecule. For indigo, aniline can be tied up in insoluble clusters of dye and so a reductive method that fully solubilises the dye and liberates free aniline is used. The levels of aniline in indigo must be achieved by removal of the aniline and not by dilution, with a minimum indigo content of 30% being required.

2-(2-Aminoethylamino)ethanol (AEEA)

AEEA is used in chelating agents, surfactants and fabric softeners.

Bisphenol A (BPA)

Bisphenol A (BPA) is a precursor chemical used along with other chemicals to create some plastics and resins. It is commonly used to harden plastics.

Borate, zinc salt

Borate, zinc salt can be used as a flame retardant as well as in paints, pigments and adhesives.

D4 (Octamethylcyclotetrasiloxane)

Cyclic siloxane can be present as contaminants in the formulations that contain silicone, such as softeners.

D5 (Decamethylcyclopentasiloxane)

Cyclic siloxane can be present as contaminants in the formulations that contain silicone, such as softeners.

D6 (Dodecamethylcyclohexasiloxane)

Cyclic siloxane can be present as contaminants in the formulations that contain silicone, such as softeners.

Diazene-1,2-dicarboxamide [C,C`-azodi(formamide)]

(ADCA)

Perboric acid, sodium salt

Quinoline

Contaminant in dispersing agents in disperse dyes.

Silica (particles of respirable size)

Respirable particles of silica are often generated during the process of sand blasting.

Thiourea

In several formulations, thiourea is used to improve solubility. It can be used as a cross-linker.

Titanium Dioxide

1N. Perfluorinated and Polyfluorinated Chemicals (PFAS)

Potential uses
Formulations containing PFAS (Per and Polyfluorinated alkylated substances) are often used for water or stain repellency.
The use of any formulation based on, or including PFAS, including those listed below, is not permitted (for fashion, sport or outdoor clothing and apparel and home textiles).
It should be noted that there may be certain critical (technical textile) end uses where legally or contractually mandated standards may only be achieved using these substances (e.g. military, medical, protective clothing, transportation). The formulations will always be deemed ZDHC MRSL NON-CONFORMANT and it is intended that the ZDHC Supplier Platform will appraise the end uses of any PFAS within an inventory.

Note on PFAS and testing: There are thousands of individual chemicals that are categorised as PFAS but only a few are actually useful in terms of oil / water repellency and their use is always accompanied by the presence of common, known 'marker' chemicals such as those listed below. ZDHC approved MRSL certifiers will check for the deliberate use of PFAS or high levels of contamination of PFAS by testing for the marker chemicals listed below and ,at their discretion, use a screening test for total fluorine (quantification limit: 50mg/kg) followed by confirmatory testing for specific series e.g. the other PFAS mentioned in the PFAS ZDHC Guidance Sheet. ZDHC approved MRSL certifier reserves the right to request or carry out test for any specific PFAS chemical using appropriate test method to check MRSL conformance.

Substance
Perfluorobutane sulfonic acid (PFBS)

Perfluorohexane sulfonic acid (PFHxS)

Perfluorooctane sulfonic acid (PFOS) and related susbstances

Perfluorodecane sulfonic acid (PFDS)

Perfluorobutanoic acid (PFBA)

Perfluorohexanoic acid (PFHxA) and related substances

Perfluorooctanoic acid (PFOA) and related substances

Perfluorodecanoic acid (PFDA)

4:2 Fluorotelomer alcohols (4:2 FTOH)

6:2 Fluorotelomer alcohols (6:2 FTOH)

8:2 Fluorotelomer alcohols (8:2 FTOH)

10:2 Fluorotelomer alcohols (10:2 FTOH)

1O. Phthalates – including all other esters of ortho-phthalic acid

Potential Uses
Esters of ortho-phthalic acid (phthalates) are a class of organic compounds commonly added to plastics to increase flexibility. They sometimes are used to facilitate moulding of plastic by decreasing its melting temperature.
Phthalates can be found in:
- Flexible plastic components (e.g. PVC)
- Print pastes
- Adhesives
- Plastic buttons
- Plastic sleevings
- Polymeric coatings
All esters of ortho-phthallic acid are restricted including those listed below

Substance
1,2-Benzenedicarboxylic acid, di-C6-8-branched and linear alkyl esters, C7-rich (DIHP)

Guidance Sheet
1,2-Benzenedicarboxylic acid, di-C7-11-branched and linear alkyl esters (DHNUP)

Guidance Sheet
1,2-Benzenedicarboxylic acid, dihexyl ester, branched and linear

1,2-Benzenedicarboxylic acid, dipentylester, branched and linear

Benzyl butyl phthalate (BBP)

Guidance Sheet
Bis(2-methoxyethyl) phthalate (DMEP)

Guidance Sheet
Di(ethylhexyl) phthalate (DEHP)

Guidance Sheet
Di-iso-butyl phthalate (DIBP)

Guidance Sheet
Di-iso-decyl phthalate (DIDP)

Guidance Sheet
Di-iso-nonyl phthalate (DINP)

Guidance Sheet
Di-iso-octyl phthalate (DIOP)

Guidance Sheet
Di-iso-pentyl phthalates (DIPP)

Guidance Sheet
Di-n-hexyl phthalate (DnHP)

Guidance Sheet
Di-n-octyl phthalate (DNOP)

Guidance Sheet
Di-n-pentyl phthalate (DnPP)

Guidance Sheet
Di-n-propyl phthalate (DPRP)

Guidance Sheet
Dibutyl phthalate (DBP)

Guidance Sheet
Dicyclohexyl phthalate (DCHP)

Guidance Sheet
Diethyl phthalate (DEP)

Guidance Sheet
Diisohexyl phthalate

Dinonyl phthalate (DNP)

Guidance Sheet
n-Pentyl-isopentyl phthalate

1P. Polycyclic Aromatic Hydrocarbons (PAHs)

Potential Uses
Oil containing PAHs are added to rubber and plastics as a softener or extender and may be found in rubber, plastics, lacquers, and coatings. Within the footwear producing industry, PAHs are often found in the outsoles of footwear and in printing pastes for screen prints. PAHs can be present as impurities in carbon black dyestuffs.

Substance
Benzo[a]pyrene (BaP)

Guidance Sheet
Naphthalene3

Guidance Sheet
Acenaphthene3,4

Guidance Sheet
Acenaphthylene3,4

Guidance Sheet
Anthracene3,4

Guidance Sheet
Benzo[a]anthracene3,4

Guidance Sheet
Benzo[b]fluoranthene3,4

Guidance Sheet
Benzo[e]pyrene3,4

Guidance Sheet
Benzo[ghi]perylene3,4

Guidance Sheet
Benzo[j]fluoranthene3,4

Guidance Sheet
Benzo[k]fluoranthene3,4

Guidance Sheet
Chrysene3,4

Guidance Sheet
Dibenz[a,h]anthracene3,4

Guidance Sheet
Fluoranthene3,4

Guidance Sheet
Fluorene3,4

Guidance Sheet
Indeno[1,2,3-cd]pyrene3,4

Guidance Sheet
Phenanthrene3,4

Guidance Sheet
Pyrene3,4

Guidance Sheet

1Q. Restricted Aromatic Amines (Cleavable from Azo-colourants)

Potential Uses
Azo dyes and pigments are colourants that incorporate one or several azo groups (-N=N-) bound with aromatic compounds. Thousands of azo dyes exist, but only those that degrade to form the listed cleavable amines are restricted. Azo dyes that release these amines are regulated and should no longer be used for dyeing of textiles or leather.
The four substances listed below highlighted with an asterisk are salts.

Substance
2-Naphthylamine

Guidance Sheet
2,4-Xylidine

Guidance Sheet
2,4,5-Trimethylaniline

Guidance Sheet
2,6-Xylidine

Guidance Sheet
3,3'-Dichlorobenzidine

Guidance Sheet
3,3'-Dimethoxylbenzidine

Guidance Sheet
3,3'-Dimethylbenzidine

Guidance Sheet
4-Aminoazobenzene

Guidance Sheet
4-Aminobiphenyl

Guidance Sheet
4-Chloro-o-toluidine

Guidance Sheet
4-Chloroaniline

Guidance Sheet
2,4-Diaminoanisol

Guidance Sheet
2,4-Toluenediamine

Guidance Sheet
4,4'-Methylene-bis-(2-chloroaniline)

Guidance Sheet
4,4'-Methylenedi-o-toluidine

Guidance Sheet
4,4'-Diaminodiphenylmethane

Guidance Sheet
4,4'-Oxydianiline

Guidance Sheet
4,4'-Thiodianiline

Guidance Sheet
2-Amino-4-nitrotuluene

Guidance Sheet
Benzidine

Guidance Sheet
p-Cresidine

Guidance Sheet
o-Aminoazotoluene

Guidance Sheet
o-Anisidine

Guidance Sheet
o-Toluidine

Guidance Sheet
Salt of 2-Naphthylammonium acetate*

Guidance Sheet
Salt of 2,4,5-trimethylaniline hydrochloride*

Guidance Sheet
Salt of 4-chloro-o-toluidinium chloride*

Guidance Sheet
Salt of 4-methoxy-m-phenylene diammonium sulphate*

Guidance Sheet

1R. Total Heavy Metals

The formulation limits for As, Cd, Hg, Pb, and Cr (VI) in the list below apply to all types of formulation. When a limit for pigments is specific and differs from the general limit, it is denoted by brackets. The formulation limits for Sb, Cr, Ba, Se, Sn, Ni, Cu, Co and Ag only apply to dye and/or pigment formulations. Any differences between limits for dyes and pigments are indicated in the formulation limit column. The limits for the heavy metals do not apply to colourants containing a listed metal as an inherent compositional part (e.g. metal-complex colourants, the double salts of certain cationic colourants or extenders like barium sulfate). Wet processors must be aware of the metal limits in the ZDHC wastewater guidelines as well as the brand RSL limits with regard to extractable metals from dyed materials when using any colourant that has listed metals as an inherent compositional part. Where RSL and/or wastewater issues are observed, wet processors should discuss this with supply chain partners.

Potential Uses
Although typically associated with leather tanning, chromium VI also may be used in the dyeing of wool (after chroming process).

Substance
Antimony (Sb)

Guidance Sheet
Arsenic (As)

Guidance Sheet
Barium (Ba)

Guidance Sheet
Cadmium (Cd)

Guidance Sheet
Chromium (Cr)

Guidance Sheet
Chromium (VI)

Guidance Sheet
Cobalt (Co)

Guidance Sheet
Copper (Cu)

Guidance Sheet
Lead (Pb)

Guidance Sheet
Mercury (Hg)

Guidance Sheet
Nickel (Ni)

Guidance Sheet
Selenium (Se)

Guidance Sheet
Silver (Ag)

Guidance Sheet
Tin (Sn)

Guidance Sheet

1S. UV Absorbers

Potential Uses
To make the formulations stable to the effects of UV light or sunlight, UV absorbers are used.

Substance
2-Benzotriazol-2-yl-4,6-di-tert-butylphenol

(UV-320)

2,4-Di-tert-butyl-6-(5-chlorobenzotriazole-2-yl) phenol

(UV-327)

2-(2H-benzotriazol-2-yl)-4,6-ditertpentylphenol

(UV-328)

2-(2H-benzotriazol-2-yl)-4-(tert-butyl)-6-(sec- butyl) phenol

(UV-350)

Chapter 2: ZDHC MRSL Candidate List

2A. Bisphenols

Substance CASNO Intent
Bisphenol AF
Bisphenol F
Bisphenol S
1478-61-1
620-92-8
80-09-1
Numerous bisphenols, including those listed, are under investigation; based on the information available and their legal status, they may be added to the main list of ZDHC MRSL version 4.0 in the future.

2B. Ethoxylated Tallow Amine

Substance CASNO Intent
Polyethoxylated tallow amine 61791-26-2 More information is required on specific substances in this group of chemicals to make a jugment on restrictions

2C. Formaldehyde

Potential Uses
Formaldehyde can be used or present in many types of formulations such as fixatives, resins and binders.

Substance CASNO Intent
Formaldehyde 50-00-0 Where formulations that contain formaldehyde are used, it is expected that appropriate exposure and emission controls are employed.
In version 4 of the ZDHC MRSL, it is intended to introduce a maximum allowable limit of 250 mg/kg formaldehyde for the majority of formulations and appropriate test methods for leather and textile formulations will need to be determined.
For formulations that are known to contain formaldehyde at higher levels but represent state-of-the-art technology, such as non-iron and easy to iron finish formulations or reactive organic / resin tanning agents, it is intended to introduce a limit of 1000 mg/kg in conformance with hazard labelling obligations.

2D. Phenol

Potential Uses
Phenol is not deliberately used in textiles or footwear but trace amounts of phenol can be found in many chemical formulations.

Substance CASNO Intent
Phenol 108-95-2 ZDHC is looking for safe limits for phenol as a contaminant in textile chemical formulations.

2E. Potassium Permanganate

Potential Uses
Potassium Permanganate is primarily used for localised bleaching of denim using a spraying process.

Substance CASNO Intent
Potassium permanganate 7722-64-7 Potassium permangante must never be used without appropriate engineering controls (such as water curtains and localised extraction) and workers must always use appropriate personal protective equipment. Suppliers are strongly encouraged to evaluate alternatives to manual spraying of potassium permanganate - such as lasers, robotised spraying or safer chemical alternatives

2F. Solvents

Potential Uses
There are many uses of solvents including cleaning, coatings, prints.
Many solvents are restricted in the main list of the ZDHC MRSL. It is strongly advised that suppliers actively seek safer alternatives to the solvents listed in the candidate list as these may be placed on the main list in future versions of the ZDHC MRSL.

Substance CASNO Intent
2-Methoxypropanol 1589-47-5 It is intended to introduce a limit for leather formulations in the ZDHC MRSL version 4.
Methanol 67-56-1 Methanol is a concern because of its toxicity and in ZDHC MRSL version 4.0 it is intended to introduce maximum allowable limits and encourage substitution by safer solvents, which in many cases will be ethanol. However, we are aware that human consumption of industrial ethanol can be a problem and there is a requirement in some jurisdictions for industrial ethanol to be deliberately ‘tainted’ with methanol to make it undrinkable. This will need to be considered as we draw up recommendations.

2G. Total Heavy Metals

Potential Uses
In addition to being used in dyes and pigments, metals are used as raw material for trims and other components.

Substance CASNO Intent
Multiple Metals (Non-dye /pigment) Studies on usage patterns of metal containing chemicals and formulations and the potential effect of restrictions are will be monitored on an on-going basis and additions made to the main list as appropriate.

Chapter 3: ZDHC MRSL Archived Substances

3A. Dyes - Carcinogenic or Equivalent Concern

Potential Uses
Most of these substances are regulated and should no longer be used for the dyeing of textiles.

Substance CASNO Supplier Guidance
C.I. Solvent Yellow 14 842-07-9 No intentional use
C.I. Solvent Yellow 2 60-11-7 No intentional use
D&C Red No. 19 81-88-9 No intentional use

3B. Dyes - Navy Blue Colourant

Potential Uses
Navy Blue Colourant is regulated and should no longer be used for the dyeing of textiles.

Substance CASNO Supplier Guidance
Component 1: C39H23ClCrN7O12S.2Na 118685-33-9 No intentional use
Component 2: C46H30CrN10O20S2.3Na Not allocated No intentional use

3C. Other/Miscellaneous chemicals

Potential Uses
Dye

Substance CASNO Supplier Guidance
Auramine hydrochloride 2465-27-2 No intentional use

3D. Solvents

Potential Uses
In the past, it was used to make several types of polymers, resins and textiles, but its use is now highly restricted.

Substance CASNO Supplier Guidance
Bis(chloromethyl) ether 542-88-1 No intentional use