AATCC LP2-2018e(2020) Laboratory Procedure for Home Laundering: Hand Washing Foreword 5. Uses and Limitations 8.11 Place washed specimen(s) from towel in rinse water and gently squeeze to This procedure is based on laundering 5.1 Standard laboratory laundering distribute. Do not twist or wring. methods originally developed as part of procedures represent.butmaynot exactly 8.12 Let specimen(s) soak for 2 min. various AATCC standards. As a stand- replicate,current consumer practices, 8.13 Gently squeeze specimen(s) in alonelaunderingprotocol,thisprocedure which vary over time and among house- rinse water for 1 min. Do not twist or maybe combined with other test meth- holds. wring. ods,includingthoseforappearanceand 5.2 Tumble and drip drying procedures 8.14 Repeat 2-min.soak and1-min care label verification. Procedures for are not included herein as they are not squeeze in rinse water. home laundering using an automatic commonlyusedfordelicateitemsthat 8.15 Remove specimen(s) from wash washingmachinemay be punoy in may be hand washed. tub and gently squeeze to remove excess AATCC LP1, Laboratory Procedure for water. Do not twist or wring. Home Laundering: Machine Washing. 6. Apparatus and Materials (see 13.1) 6.1 Wash tub, 9.5-L. 9. Standard Drying Procedure 1. Purpose and Scope 6.2 White towels, large enough to ac- 9.1 Using clean white towels, blot wa- 1.1 This procedure provides standard commodate test specimen,any weight. ter from washed specimen(s).Do not home laundering conditions using hand 6.3 Appropriate hangers, for hang dry- wring or twist. washing and line or flat drying. ing. 9.2 Line/Hang Dry. Hang each fabric 1.2 This test is applicable to all fabrics 6.4 Drying racks with pull-out, perfo- specimen by two corners, with the fabric and end products suitable for hand wash- rated shelves, for drying flat (see 13.2) length in the vertical direction. Hang 6.5 1993 AATCC Standard Reference ing with detergent. product specimens on an appropriate Detergent (see 13.2, 13.3). hanger, straightening and smoothing fac- ings, seams, etc. Product specimens 2. Principle 7. Specimens should generally be oriented in the direc- tion in which they are worn. Do not fold 2.1 Home laundering procedures, in- 7.1 Cut and prepare specimens as di- or stretch specimens over the hanger. Al- cluding hand washing, hang drying, and rected in the applicable test method. This low specimens tohang in still airat room flat drying are provided. The procedures launderingproceduremaybeperformed described herein need to be combined temperaturenotgreaterthan26°C(78°F) on any size or shape specimen(s)witha with an appropriate test method to obtain total dry mass less than or equal to 0.7 kg until dry.Do not blow air directly on specimens as it may cause distortion and interpret results. (1.5 1b). 9.3 Screen/Flat Dry. Spread each speci- 7.2 if required, condition and evaluate men on a horizontal screen orperforated specimens before laundering, as directed 3. Terminology surface, removing wrinkles without dis- in an applicable test method. torting or stretching it. Allow specimens 3.1 laundering, n.of textile materi- to lie in still air at room temperature not als,aprocessintendedto removesoils 8. Standard Washing Procedure greater than 26°C (78°F) until dry. Do not and/or stains by treatment (washing) with blow air directly on specimens as it may 8.1 Select washing temperature from an aqueous detergent solution and nor- cause distortion. mally including rinsing, extraction and Table I. Add 7.6 ± 1.9 L (2.0± 0.5 gal) of 9.4 Allow specimens to dry completely drying. water at this temperature to the wash tub. before washing again. 8.2 Add 20 ± 1 g of 1993 AATCC Standard Reference Detergent to wash 9.5 Repeat the selected washing and drying procedures for an agreed upon 4.Safety Precautions tub. 8.3 Agitate by hand to dissolve deter- number of cycles. NOTE:These safety precautions are gent. for information purposes only.Thepre- 8.4 Add specimen(s) to solution a