1 Scope: This standard specifies the requirements, inspection methods, inspection rules, packaging, and labeling of mulberry double palace silk. This standard is applicable to twisted and simple mulberry double palace silk. 2 Normative reference documents The following documents are essential for the application of this document. For dated references, only the dated version applies to this document. For undated references, the latest version (including all amendments) applies to this document. GB/T 6529 Standard Atmosphere for Humidity Control and Testing of Textiles GB/T 8170 Rules for Rounding off Numbers and Representation and Determination of Limit Values GB/T 9995 Determination of Moisture Content and Moisture regain of Textile Materials GB/T 9995 Oven Drying Method FZ/T40008-2016 Darkroom Technical Requirements for Silk Blackboard Inspection 3 Indication of Silkworm Double Palace Silk Specifications The specifications of Silkworm Double Palace Silk are indicated by "Lower/Upper Size Limit", and the center value of its size is the nominal size. Example 1:50/70 denier (55.6/77.8 dtex) : Denotes a nominal size of 60 denier (66.7 dtex) for the mulberry silk double palace, with a minimum size limit of 50 denier (55.6 dtex) and an upper size limit of 70 denier (77.8 dtex). Example 2: 100/120 denier (111.1/133.3 dtex): Denotes a nominal size of 110 denier (122.2 dtex) for the mulberry silk double palace, with a minimum size limit of 100 denier (111.1 dtex) and an upper size limit of 120 denier (133.3 dtex)

Function of testing report:

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3. Used as a sales report: issuing legally effective testing reports to make consumers more confident

4. Papers and research: Provide professional personalized testing needs

5. Judicial services: providing scientific, fair, and accurate testing data

6. Industrial problem diagnosis: Verify the troubleshooting and correction of industrial production problems

100% inspection and testing process:

1. Telephone communication and confirmation of requirements

2. Recommend solutions and confirm quotations

3. Mail samples and arrange testing

4. Progress tracking and result feedback

5. Provide reports and after-sales service

6. If urgent or priority processing is required

Testing and testing characteristics:

1. The testing industry is fully covered, meeting different testing needs

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7. Possess authoritative qualifications such as CMA, CNAS, CAL, etc

8. The testing report is authoritative and effective, and is generally used in China