NSF ANSI ISO 14021-2001 pdf download Environmental labels and declarations – Self-declared environmental claims (Type II environmental labelling)
5.8.3 Symbols used for one type of environmental claim should be easily distinguishable from other symbols, including symbols for other environmental claims.
5.8.4 A symbol used to express implementation of an environmental management system shall not be used in such a way that it could be misunderstood as an environmental symbol indicating the environmental aspects of a product,
5.8.5 Natural objects shall be used only if there is a direct and verifiable link between the object and the benefit claimed.
NOTE There are many advantages to be gained by the use of the same symbol to denote the same environmental aspect on competing products. As new symbols are developed, claimants are encouraged to adopt a consistent approach and not to discourage the use of the same symbol to denote the same environmental aspect by others. In selection of a new symbol, due consideration should be given so as not 0 violate the intellectual property rights (e.g. registered designs) of third parties.
5.9 Other information or claims
5.9.1 Words, numbers or symbols may be used in addition to environmental symbols to communicate information such as material identification，disposal instructions or hazard warnings.
5.9.2 Words, numbers or symbols used for non- environmental claim purposes shall not be used in a manner that is likely to be misunderstood as making an environmental claim.
5.9.3 An environmental symbol as described in 5.10 shall not be modified to relate the symbol to a specitic brand, company or corporate position.
5.10 Specific symbols
5.10.1 General The selection of specific symbols for this International Standard is based on their existing wide use or recognition. This should not be taken to imply that environmental claims represented by these symbols are superior to other environmental claims. Only the Mobius loop is included at present. Other specific symbols which are not provided for in this International Standard will be introduced at an appropriate time.
5.10.2 The Mobius loop
5.10.2.1 The Mobius loop is a symbol in the shape of three twisted chasing arrows forming a triangle. Whenever it is used to make an environmental claim, the design shall meet the graphical requirements for ISO 7000，Symbol No.1135. There should, however, be enough contrast So that the symbol is clear and distinguishable. Some examples of the form of the Mobius loop are provided in Figure 1. Clause 7 provides detailed requirements concerning the use and applicability of the Mobius loop.
5.10.2.2 The Mobius loop may apply to the product or the packaging. If there is any potential for confusion about whether it applies to the product or the packaging, the symbol shall be accompanied by an explanatory statement.
5.10.2.3 If a symbol is used for claims of recyclable or recycled content, then that symbol shall be the Mobius loop subject to the requirements of 7.7 and 7.8.