Mahsulotlar sifatini aniqlash va sertifikatlash



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mahsulotlar sifatini aniqlash va sertifikatlash

TABLE OF CONTENTS
INTRODUCTION
4
Chapter I Information on the quality of products
6
I.1. Quality indicators of products
6
1.2. Physical and mechanical properties of raw cotton
9
1.3. Physical and mechanical properties of cotton fiber
13
1.4. General information about natural fibers
14
Chapter II  Evaluation of the quality of cotton products
19
2.1. Methods for assessing product quality
19
Chapter III Determination of qualitative indicators of raw cotton
22
3.1. Department of technical control of cotton ginning plant
22
3.2. Laboratory instruments of cotton ginning plant and
procurement station
22
3.3. Technical equipping of cotton ginning plant laboratories and
procurement station
27
3.4. Sampling for the determination and evaluation of the quality
of raw cotton
31
3.5. Types of raw cotton
33
3.6. Determination of the moisture content of raw cotton
37
3.7. Determination of the clogging of raw cotton
51
3.8. Determination of raw cotton grade
60
Chapter IV Determination of qualitative characteristics of fiber
74
4.1. Cotton fiber. Technical specifications
74
4.2. Sampling of cotton fiber
85
4.3. Determination of the load and linear density of the fiber
89
4.4. Determination of the degree of maturity of the fiber
90
4.5. Determination of the linear density and the porosity meter of
the cotton fiber micronaire
96
4.6. Determining the nature of defects and the contamination of
cotton fiber
100
4.7. Determination of the length of cotton fiber
106
4.8. Determination of cotton fiber moisture
112
Chapter V Modern methods of determining the quality of cotton
fiber
113
5.1. Determination of qualitative indicators of cotton fiber on the
HVI 900 SA system
113
5.2. Definition of a micronaire indicator
117
5.3. Classroom method for determining fiber quality
121
Chapter VI Methods for determining the quality of cotton seeds
125
6.1. Determination of seed quality
125
6.2. Methods of control of sowing seeds
128
6.3. Sampling of technical seeds and identification of defects
130
6.4. Determination of the moisture content of cotton seeds
133
6.5. Determination of cotton seed contamination
135


215
6.6. Determination of the pubescence of cotton seeds
143
6.7. Determination of the oil content of cotton seeds
146
Chapter VII
Sampling and determination of lint quality
151
Chapter VIII
Methods for analysis of fibrous waste
155
8.1. Fibrous wastes, downy-containing
155
8.2. Fibrous wastes with ultrasonic
156
8.3. Packing materials
158
Chapter IX Certification of products
166
9.1. Certification Summary
166
9.2. Certification organizations of the Republic of Uzbekistan
176
9.3. Certificate of conformity and a mark of conformity
186
9.4. Procedure and conditions for certification
188
9.5. Inspection control of product certification
199
Normative documents of the ginning industry
204
                        Glossary
207
                        Literature
209

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