GB/T 21241-2022 PDF English
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivery | Name of Chinese Standard | Status |
| GB/T 21241-2022 | English | 80 |
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Toilet bowl and ceramic tile cleansers
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| GB/T 21241-2007 | English | 105 |
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Toilet bowl and ceramic tile cleansers
| Obsolete |
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GB/T 21241-2022: Toilet bowl and ceramic tile cleansers---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT21241-2022
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 71.100.40
CCS Y 43
Replacing GB/T 21241-2007
Toilet bowl and ceramic tile cleansers
Issued on. DECEMBER 30, 2022
Implemented on. JULY 01, 2023
Issued by. State Administration for Market Regulation;
National Standardization Administration.
Table of Contents
Foreword... 3
1 Scope... 5
2 Normative references... 5
3 Terms and definitions... 6
4 Product categories... 6
5 Requirements... 6
6 Test methods... 7
7 Inspection rules... 10
8 Marking, packaging, transportation, storage... 10
Foreword
This document is drafted in accordance with the provisions of GB/T 1.1-2020
"Directives for standardization - Part 1.Rules for the structure and drafting of
standardizing documents".
This document replaces GB/T 21241-2007 "Toilet bowl and ceramic tile cleansers".
Compared with GB/T 21241-2007, in addition to structural adjustments and editorial
changes, the main technical changes are as follows.
a) CHANGE the basic requirements (see 5.1; 4.1 of the 2007 edition);
b) CHANGE the appearance and stability item requirements (see 5.2; 4.2 of the 2007
edition);
c) CHANGE the name of the surfactant content item (see 5.3; 4.3 of the 2007 edition);
d) CHANGE the requirements for corrosive items (see 5.3; 4.3 of the 2007 edition);
e) ADD the total phosphorus pentoxide content items, requirements, detection
methods (see 5.3 and 6.8);
f) ADD the remarks on the total acidity weighing quantity (see 6.5.4.1);
g) CHANGE the expression of results of total acidity (see 6.5.4.2; 5.4.4.2 of the 2007
edition);
h) CHANGE the basis for the detection method of total effective substance content
(see 6.6; 5.5 of the 2007 edition);
i) CHANGE the description of corrosion testing (see 6.7; 5.6 of the 2007 edition);
j) CHANGE the inspection rules (see Chapter 7; Chapter 6 of the 2007 edition);
k) CHANGE the marking requirements (see 8.1; 7.1 of the 2007 edition);
l) CHANGE the packaging requirements (see 8.2; 7.2 of the 2007 edition);
m) DELETE the corrosion requirements and test methods for cast iron (see 4.3 and
5.6.2 of the 2007 edition);
n) DELETE the quantitative packaging requirements (see 4.4 of the 2007 edition);
o) DELETE the shelf life requirement (see 7.4.3 of the 2007 edition).
Please note that some content in this document may be subject to patents. The publisher
of this document assumes no responsibility for identifying patents.
This document was proposed by China Light Industry Federation.
This document shall be under the jurisdiction of the National Technical Committee on
Standardization of Surfactants and Detergents (SAC/TC 272).
Drafting organizations of this document. Zhongqing Daily Chemical Inspection and
Certification Co., Ltd., Beijing Green Umbrella Technology Co., Ltd., Blue Moon
(China) Co., Ltd., Guangzhou Libai Enterprise Group Co., Ltd., Pengchen New
Material Technology Co., Ltd., Perfect (Guangdong) Daily Necessities Co., Ltd.,
Fujian Mengjiaolan Daily Chemicals Co., Ltd., Transhua Group Co., Ltd. Daily
Necessities Branch, Xi'an Youluqing Technology Co., Ltd., Zhuhai Heshunxing Daily
Chemical Co., Ltd., China Daily Chemicals Institute Co., Ltd.
The main drafters of this document. Li Xiaohui, Li Jinlong, Liang Runcheng, Zhang
Jingfeng, Ding Chunchao, Tan Yong, Li Minan, Chen Jinyang, Xu Xun, Zhang Jianxi,
Yin Taixing, Li Xiaorui.
This standard replaces the standard previously issued as follows.
- It was first published as GB/T 21241-2007 in 2007;
- This is the first revision.
Toilet bowl and ceramic tile cleansers
1 Scope
This document stipulates the classification, requirements, test methods, inspection rules
and marking, packaging, transportation, storage of toilet bowl and ceramic tile cleansers.
This document is applicable to the production and testing of liquid, paste, gel sanitary
ware cleaning products, that are composed of inorganic acids, organic acids, surfactants
or other auxiliaries as the main raw materials.
2 Normative references
The contents of the following documents constitute essential provisions of this
document through normative references in the text. Among them, for dated reference
documents, only the version corresponding to the date applies to this document; for
undated reference documents, the latest version (including all amendments) applies to
this document.
GB/T 3810.13-2016 Test methods of ceramic tiles - Part 13.Determination of
chemical resistance
GB/T 4100-2015 Ceramic tiles
GB/T 6682 Water for analytical laboratory use - Specification and test methods
GB/T 13173-2021 Surface active agents - Test methods for detergents
GB/T 26396 Technical specification for safety of soaps and detergents
GB/T 36970 Instruction for use of consumer products - Labelling for detergents
QB/T 2117-1995 General water-based metal detergents
3 Terms and definitions
There are no terms or definitions to be defined in this document.
4 Product categories
According to the objects of use of the products, sanitary ware cleaning agent products
are divided into two types.
5 Requirements
5.1 Basic requirements
The products and raw materials used shall comply with the requirements of Category
C products in GB/T 26396.
5.2 Sensory requirements
The sensory requirements of the product shall comply with the provisions of Table 1.
5.3 Physical and chemical performance indicators
The physical and chemical performance indicators of the product shall comply with the
provisions of Table 2.
6 Test methods
6.1 Basic requirements
Unless otherwise stated, only reagents confirmed to be of analytical grade and grade-3
water or above complying with GB/T 6682 are used in the analysis.
6.2 Appearance
Measure a specimen of no less than 200 mL. Place it in a dry and clean colorless glass
container. Observe it under non-direct light conditions.
6.3 Odor
Take an appropriate amount of specimen and place it in a container without peculiar
smell, for identification by smell.
6.5 Total acidity
6.5.1 Principle
Using phenolphthalein as an indicator, titrate the specimen solution with sodium
hydroxide standard titration solution until it appears reddish. Calculate the total acidity
based on the consumption.
6.5.2 Reagents
6.5.3 Instruments
6.5.4 Procedure
6.6 Total effective substance content
If there are no special instructions, the provisions of 7.4.1 in GB/T 13173-2021 shall be
followed.
6.7 Corrosiveness
6.7.1 Ceramic tile corrosiveness
The measurement is carried out according to the test method of 8.1 in GB/T 3810.13-
2016.
6.7.2 Corrosion of metal test pieces
The corrosion resistance of 1Cr18Ni9Ti stainless steel, H62 brass, Cu/Ni10bCr brass
chromium plating is measured according to QB/T 2117-1995; H62 brass is rated
according to 5.6.5.2 in QB/T 2117-1995; 1Cr18Ni9Ti stainless steel and Cu/Ni10bCr
brass chromium plating are rated according to the following criteria.
6.8 Total phosphorus pentoxide content
Follow the provisions of 6.2 in GB/T 13173-2021.
7 Inspection rules
Follow the requirements of QB/T 2951.
8 Marking, packaging, transportation, storage
8.1 Marking
It is carried out according to the provisions of GB/T 36970.
8.3 Transport
During transportation, it shall be loaded and unloaded gently. It shall not be turned
upside down.
8.4 Storage
The product shall be stored in a ventilated, dry place away from direct sunlight and rain.
It shall not be stored in high temperature or freezing environments.
...... Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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