AATCC LP4-2023 合成土壤实验室程序

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472 AATCC LP4-2023 AATCC Manual of International Test Methods and Procedures/2025

1. Foreword

1.1 The AATCC Synthetic Soil For-

mula is applicable for several methods

within AATCC and other organizations.

Historically, AATCC listed the formula

within select AATCC methods. It was

determined that the formula should be

listed independently.

1.2 AATCC TM123 Carpet Soiling:

Accelerated Soiling Method—was writ-

ten in 1967 and used throughout the

1970s, 80s, and 90s. Many types of soil

application devices were developed dur-

ing this time. During this time, the soil

ingredients were determined, a formula

was developed, and recorded in TM 123.

During this period, soil resistance tech-

nology was improved in the carpet

industry. Improving the variation of the

test soil application on the carpet speci-

men became necessary. A workgroup of

carpet & fiber manufacturers and chemi-

cal suppliers formed an ASTM work-

group to improve the methods’ variation.

They conducted many trials with differ-

ent tumblers, mixing media, and other

attributes. Finally, a reproducible way to

apply the soil mixture, detailed in

AATCC TM123, was agreed on.

1.3 A new method was written within

ASTM D13.21 to describe the method; it

was designated ASTM D6540—Stan-

dard Test Method for Accelerated Soil-

ing of Pile Yarn Floor Covering. ASTM

D6540 referenced the formula found in

AATCC TM123.

1.4 TM123 was dropped as an active

soiling test method in subsequent years.

It was withdrawn in 2001. The Synthetic

Soil formula was transferred to AATCC

TM122 Carpet Soiling: Service Soiling

Method to preserve the soiling formula.

As TM122 may eventually suffer the

same faith as TM123, to keep the for-

mula active, it was determined that it

should be listed independently.

1.5 To ensure that the soil formula is

available regardless of the status of the

test standard, the formula is now stated

in AATCC LP4 Laboratory Procedure

for Synthetic Soil.

1.5.1 Previous references to AATCC

Synthetic Soil Formula have been

removed from AATCC TM122. ASTM

D6540 references to the formula have

been updated to align with AATCC LP4.

2. Purpose and Scope

2.1 Synthetic Soil is used as a soiling

option for stain and soiling evaluations.

2.2 Synthetic soil originated from car-

pet-related methods; however, its use is

not limited and can be used in other

methods requiring a synthetic soil appli-

cation.

3. Principle

3.1 This lab procedure provides the

historical background of the Synthetic

Soil Formula (see 1.2 and 1.3) and

includes the formula (see Table I) and

the mixing guidelines (see 7.2)

4, Referenced Documents

4.1 AATCC TM122-2019 Carpet Soil-

ing: Service Soiling Method (see 8.2).

4.2 AATCC TM123-2000 Carpet Soil-

ing: Accelerated Soiling Method (see

8.2).

4.3 ASTM D6540—Standard Test

Method for Accelerated Soiling of Pile

Yarn Floor Covering (see 8.1).

5. Terminology

5.1 soil, n.—dirt, oil, or other sub-

stances not normally intended to be

present on a substrate such as a textile

material.

5.2 soiling, n.—in textiles, a process

by which a textile substrate becomes

more or less uniformly covered with/or

impregnated with soil.

6. Safety Precautions

NOTE: These safety precautions are

for information purposes only. The pre-

cautions are ancillary to the testing pro-

cedures and are not intended to be all-

inclusive. It is the user's responsibility to

use safe and proper techniques in han-

dling materials in this test method. Man-

ufacturers MUST be consulted for spe-

cific details such as material safety data

sheets and other manufacturers' recom-

mendations. All OSHA standards and

rules must also be consulted and fol-

lowed.

6.1 Good laboratory practices should

be followed. Wear safety glasses in

all laboratory areas. Wear impervious

gloves when handling soil.

6.2 All chemicals should be handled

with care.

7. Procedure

7.1 The soil Formula is listed in Table I.

7.2 Synthetic Soil Mixing Guidelines.

7.2.1 Canadian Peat moss should be

dry and free of lumps.

7.2.2 Portland cement must be dry. If it

contains lumps, discard it and use a fresh

supply.

7.2.3 Mix all dry ingredients thor-

oughly before adding mineral oil.

7.2.4 Dry mix at 50°C (122°F) for 6-8

hours.

7.2.5 Place the dry mixture in a ball

mill with ceramic balls. Turn the mill on

and run it for approximately 24 hours.

7.2.6 Store mixture in vapor-tight con-

tainers with a desiccant.

7.3 The synthetic soil may be pur-

chased pre-mixed (see 8.2).

8. Notes

8.1 Available from ASTM International,

100 Barr Harbor Dr., W. Conshohocken PA

19428: +1.610.832.9500; www.astm.org.

8.2 For potential material information about

this lab procedure, please visit the online

AATCC Buyer's Guide at www.aatcc.org/bg.

AATCC provides the possibility of listing

equipment and materials sold by its Corporate

Member, but AATCC does not qualify or in

any approve, endorse, or certify that any of the

listed equipment or materials meet the require-

ments of its test methods.

9. History

9.1 Developed in 2023 by AATCC Com-

mittee RA57.

AATCC LP4-2023

Laboratory Procedure for Synthetic Soil

Table I—Synthetic Soil Formula

Ingredients

% By

Weight

Canadian peat moss 38.0

Portland cement 17.0

Kaolin clay 17.0

Silica Gel Sorbent (230–400 mesh) 17.0

Carbon black (Lamp or furnace black) 1.75

Black iron oxide 0.50

Mineral oil (medical grade) 8.75

Provided by Accuris under license with AATCC

No reproduction or networking permitted without license from Accuris Not for Resale, 2025-04-14 18:24:10 UTC

Sold to: Nawal Analytical Labs India Private limited

Order Number: 00015024

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标签： #实验室

摘要：

AATCC LP4-2023 是一项针对合成土壤制备与使用的标准化实验室程序，主要用于纺织品清洁性能、去污效果以及洗涤剂功效的评估。该程序通过模拟真实环境中常见的日常污垢（如灰尘、油脂和炭黑等成分）组合成标准化的合成土壤，从而确保不同实验室间的测试结果具有可比性和重复性。LP4-2023 的发布进一步更新了土壤配比与应用条件，适用于纺织品制造商、洗涤剂研发机构以及质量控制实验室，帮助其在产品开发与合规检测中快速获得可靠数据。掌握这一标准能够有效提升去污测试的严谨性，并优化清洁产品的配方验证流程。

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