GB/T 13206-2022 PDF English (GB/T 13206-2011: Older version)
Search result: GB/T 13206-2022 (GB/T 13206-2011 Older version)
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Name of Chinese Standard | Status |
| GB/T 13206-2022 | English | 100 |
Add to Cart
|
0-9 seconds. Auto-delivery.
|
Glycerines
| Valid |
| GB/T 13206-2011 | English | 170 |
Add to Cart
|
0-9 seconds. Auto-delivery.
|
Glycerin
| Obsolete |
| GB/T 13206-1991 | English | 199 |
Add to Cart
|
2 days
|
Glycerines
| Obsolete |
PDF Preview: GB/T 13206-2022
PDF Preview: GB/T 13206-2011
GB/T 13206-2022: PDF in English (GBT 13206-2022) GB/T 13206-2022
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 71.100.40
CCS Y 43
Replacing GB/T 13206-2011
Glycerines
甘油
ISSUED ON. DECEMBER 30, 2022
IMPLEMENTED ON. JULY 01, 2023
Issued by. State Administration for Market Regulation;
Standardization Administration of the People's Republic of China.
Table of Contents
Foreword... 3
1 Scope... 4
2 Normative references... 4
3 Terms and definitions... 4
4 Product structure... 4
5 Requirements... 4
6 Test methods... 5
7 Inspection rules... 7
8 Marks, packaging, transportation, storage and shelf life... 9
Glycerines
1 Scope
This document specifies the requirements, test methods, inspection rules, as well as
marking, packaging, transportation, storage and shelf life for glycerines (glycerol).
This document applies to industrial refined glycerine produced from glycerin-
containing sweet water produced by saponification, hydrolysis or transesterification of
animal and vegetable oils and fats.
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 6682, Water for analytical laboratory use -- Specification and test methods
GB/T 8170, Rules of rounding off for numerical values and expression and
judgement of limiting values
GB/T 13216, Test methods for glycerine
GB/T 21842, Determination of diethylene glycol in toothpaste
3 Terms and definitions
There are no terms or definitions to be defined in this document.
4 Product structure
Relative molecular mass. 92.09 (1987 international atomic weight)
5 Requirements
5.1 Traits
Carry out in accordance with the provisions of GB/T 13216.
6.6 Density
Carry out in accordance with the provisions of GB/T 13216.
6.7 Chloride content
Carry out in accordance with the provisions of GB/T 13216.
6.8 Sulfated ash
Carry out in accordance with the provisions of GB/T 13216.
6.9 Acidity or alkalinity
Carry out in accordance with the provisions of GB/T 13216.
6.10 Saponification equivalent
Carry out in accordance with the provisions of GB/T 13216.
6.11 Arsenic content
Carry out in accordance with the provisions of GB/T 13216.
6.12 Heavy metal content
Carry out in accordance with the provisions of GB/T 13216.
6.13 Reducing substances
6.13.1 Reagents
The reagents used are as follows.
a) Hydrochloric acid solution. Take 234 mL of concentrated hydrochloric acid. Add
water and dilute to 1000 mL;
b) Sodium metabisulfite solution. 7.5% (mass fraction);
c) Decolorized parafuchsin solution. Take 0.1 g of parafuchsin hydrochloride (C19
H18ClN3) and place it in a 250 mL stoppered Erlenmeyer flask. Add 60 mL of
water. Add 10 mL of 7.5% sodium metabisulfite solution [6.13.1b)]. Add 4.5 mL
of hydrochloric acid solution [6.13.1a)] with gentle stirring. Add the stopper and
shake until it is completely dissolved. Add water to 100 mL. Shake well. Leave
for 12 h before use;
d) Reference solution. formaldehyde (CH2O) aqueous solution, ρ =5.0 μg/mL.
6.13.2 Instruments
Colorimetric tube with stopper. 50 mL.
6.13.3 Procedure
Take 3.75 g of the specimen and place it in the colorimetric tube (6.13.2). Add water to
15 mL. Mix well. Add 1.0 mL of decolorized parafuchsin solution [6.13.1c)]. Mix well.
Leave it sealed in place for 1 h.
Take 7.5 mL of the reference solution [6.13.1d)] and process it in the same way. If the
reference solution does not appear red, the test is invalid.
Compare the color of the sample solution with that of the control solution. The color of
the sample solution shall not be darker than the color of the reference solution.
6.14 Diethylene glycol content
Carry out in accordance with the provisions of GB/T 21842.
7 Inspection rules
7.1 Inspection classification
7.1.1 Exit-factory inspection
The exit-factory inspection items include all items in Chapter 5 except arsenic content,
heavy metal content, sulfated ash content, and diethylene glycol content.
7.1.2 Type inspection
The type inspection items include all items specified in Chapter 5.Type inspection shall
be carried out under the following circumstances.
a) During normal production, type inspection shall be conducted every 3 months;
b) When production processes, production equipment, raw materials, catalysts, etc.
change or become abnormal, as well as changes in production management
elements (including personnel quality) that may affect product quality and
performance;
c) When production is resumed after a long-term suspension;
d) When the exit-factory inspection results are significantly different from the last
type inspection results;
e) When quality supervision agencies and users put forward type inspection
requirements.
......
Source: Above contents are excerpted from the PDF -- translated/reviewed by: www.chinesestandard.net / Wayne Zheng et al.
|