Standard No.:	GB/T 40181-2021
English Name:	Test method and evaluation for flushability of disposable sanitary nonwoven materials
Chinese Name:	一次性卫生用非织造材料的可冲散性试验方法及评价
Chinese Classification:	W04    Basic standards and general methods
Professional Classification:	GB    National Standard
ICS Classification:	59.080.30 59.080.30    Textile fabrics 59.080.30
Source Content Issued by:	SAMR; SAC
Issued on:	2021-05-21
Implemented on:	2021-12-1
Status:	valid
Target Language:	English
File Format:	PDF
Word Count:	18500 words
Translation Price(USD):	555.0
Delivery:	via email in 1 business day

Test method and evaluation for flushability of disposable sanitary nonwoven materials 1 Scope This standard specifies the test method and evaluation for flushability of disposable sanitary nonwovens, including eight test and evaluation methods, including wet breaking strength pre-test, toilet and drain-line clearance test, slosh box disintegration test, household pump test, settling test, aerobic biodisintegration/biodegradation tests, anaerobic biodisintegration/biodegradationtests and municipal sewage pump test. This standard is applicable to disposable sanitary nonwovens that can be disintegrated and degraded directly into toilets, including dry/wet wipes for infants, dry/wet wipes for women's care, dry/wet wipes for toilets, etc. 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. GB/T 20810-2018 Toilet tissue paper (including toilet tissue base paper) GB/T 21856 Chemicals - Ready biodegradability - CO2 evolution test GB/T 24218.3 Textiles - Test methods for nonwovens - Part 3: Determination of tensile strength and elongation (strip method) GB/T 27857 Chemicals - Anaerobic biodegradability of organic compounds in digested sludge - By measurement of gas production GB/T 31216 Complete pet food - Dog food CJ/T 51-2018 Examination methods for municipal sewage 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 flushability performance of the product that can maintain the smoothness of the toilet and drain-line system under expected usage conditions, be compatible with existing sewage transportation, treatment, reuse, and disposal systems, make waste unrecognizable in a reasonable time, and have disintegrating and degradation ability 3.2 simulated fecal material; SFM material used to simulate human feces in flushability tests 3.3 total suspended solids; TSS total suspended solids in untreated sewage or activated sludge 3.4 total solids; TS total solid mass left by evaporation of anaerobic digested sludge to dryness, which is the sum of dissolved solids and insoluble solids in anaerobic sludge 4 General principles

Foreword i 1 Scope 2 Normative references 3 Terms and definitions 4 General principles 5 Wet breaking strength pre-test 6 Toilet and drain-line clearance test 7 Slosh box disintegration test 8 Household pump test 9 Settling test 10 Aerobic biodisintegration/biodegradation tests 11 Anaerobic biodisintegration/biodegradation tests 12 Municipal sewage pump test 13 Comprehensive evaluation Annex A (Normative) Preparation method of simulated fecal material Annex B (Normative) Weighing of dry weight of test samples and residual samples Annex C (Normative) Sample pre-cleaning Annex D (Normative) Screening and collection of residual samples Annex E (Normative) Collection, transportation, storage, characteristic description and preparation of sewage and sludge