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SH/T 1541-2006 (SH/T1541-2006)

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SH/T 1541-2006: PDF in English (SHT 1541-2006)

SH/T 1541-2006
ICS 83.080.01
G 31
Replacing SH/T 1541-1993
Test method for appearance of thermoplastic
ISSUED ON. MAY 12, 2006
Issued by. National Development and Reform Commission
Table of Contents
Foreword ... 3 
1 Scope ... 4 
2 Normative references ... 4 
3 Terms and definitions ... 4 
4 Principle ... 5 
5 Instruments and apparatuses ... 5 
6 Samples ... 6 
7 Test procedure ... 6 
8 Result representation ... 6 
9 Test report ... 6 
This standard replaces SH/T 1541-1993 Test Method for Appearance of Thermoplastic
The main changes with respect to SH/T 1541-1993 are as follows.
- In the scope, the high-density polyethylene, low-density polyethylene, and linear
low-density polyethylene to which this standard is applicable are combined and
collectively called polyethylene (PE) (chapter 1).
- Styrene-acrylonitrile (SAN) resin and modified plastics are added in the scope
(chapter 1).
- The undated documents in the normative references are changed to dated documents
(chapter 2).
- The chapter terms and definitions is added (chapter 3).
- It is specified that granules include fines and broken grains (3.4).
- The definitions of snake-skin particles, floccules, and bubbled grains are added (3.5,
3.6, 3.7, and 3.8).
- The sieve set for test is described according to GB/T 6003.2-1997 (5.1).
- Sufficiently shaking “in the horizontal direction” is added after the sieve set for test is
assembled (7.2).
- The chapter “result representation” is added (chapter 8).
The standard was proposed by China Petroleum and Chemical Corporation.
This standard shall be under the jurisdiction of the National Standardization Technical
Committee - Petrochemical Plastic Resins Products Sub-Committee (SAC/TC15/SC1).
Drafting organization of this standard. China Petroleum and Chemical Corporation -
Beijing Yanshan Company - Resin Application Research Institute.
Main drafters of this standard. Wang Xiaoli, Chen Hongyuan, Yang Chunmei, Wang
Shuhua, Li Zhenhuan, Xu Guiqin, Shi Yingqiu.
This standard was issued in 1993 for the first time; this is the first revision.
Test Method for Appearance of Thermoplastic Granules
1 Scope
This standard specifies the test method for the appearance of thermoplastic granules.
This standard is applicable to uncolored granular resins such as polyethylene (PE),
polypropylene (PP), polystyrene (PS), high impact polystyrene (PS-I),
acrylonitrile-butadiene-styrene (ABS), and styrene-acrylonitrile (SAN).
This standard is applicable to modified plastics as well.
This standard is not applicable to the powder in thermoplastic plastics.
2 Normative references
The articles contained in the following documents have become part of this document
when they are quoted herein. For the dated documents so quoted, all the subsequent
modifications (including all corrections) or revisions made thereafter do not apply to this
standard. However, the parties who reach an agreement according to this standard are
encouraged to study whether the latest versions of these documents may be used. For
the undated documents so quoted, the latest versions (including all modification sheets)
apply to this document.
GB/T 6003.2-1997 Test sieves of perforated metal plate (eqv ISO 3310-2.1990)
3 Terms and definitions
For the purpose of this standard, the following terms and definitions shall apply.
3.1 Black granule
Black particles and dark brown particles.
3.2 Colored granule
Particles with other colors, except the due-colors that black grains and resins have.
3.3 Large granule
Particles whose size is larger than 5mm in any direction, including double-granule.
c. Test duration;
d. number (pieces/kg) or mass (g/kg) of the granules in 1000g of samples;
e. Test date and personnel.
Source: Above contents are excerpted from the PDF -- translated/reviewed by: www.chinesestandard.net / Wayne Zheng et al.