JY/T 0194-2011 English PDFUS$149.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. JY/T 0194-2011: (Leaf structure model) Status: Valid
Basic dataStandard ID: JY/T 0194-2011 (JY/T0194-2011)Description (Translated English): (Leaf structure model) Sector / Industry: Education Industry Standard (Recommended) Classification of Chinese Standard: Y51 Word Count Estimation: 6,666 Date of Issue: 2013-07-11 Date of Implementation: 2013-07-11 Older Standard (superseded by this standard): JY 194-1985 Issuing agency(ies): Ministry of Education of the People's Republic of China JY/T 0194-2011: (Leaf structure model)---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.(Leaf structure model) ICS 03.180 Y51 Record number 46923-2014 JY Education Industry Standard of the People's Republic of China Replacing JY 194-1985 Leaf structure model Leaf structure model 2013-07-11 released 2013-07-11 Implementation Published by the Ministry of Education of the People's Republic of China ForewordThis standard was drafted in accordance with the rules given in GB/T 1.1-2009 "Guidelines for Standardization Work_Part 1. Structure and Preparation of Standards" This standard replaces JY 194-1985 "Technical Conditions of Leaf Structure Model". In addition to editorial changes, the main technical changes are as follows. -Appearance size has increased allowable tolerances; -Added the requirement that the main parts of the model should be affixed with name or number tags; -Specifies the materials that should and should not be used for the model; -Specify the limit of heavy metal content in the paint of the model. Please note that some elements of this standard may involve patents. The issuer of this standard is not responsible for identifying these patents. This standard was proposed by the National Technical Committee for Standardization of Teaching Instruments (SAC/TC125). This standard is under the jurisdiction of the National Technical Committee for Standardization of Teaching Instruments (SAC/TC125). The main drafters of this standard are. Zhejiang Educational Technology Center, Ministry of Education Teaching Instrument Research Institute, Wenzhou Wuxing Industrial Co., Ltd. The main drafters of this standard. Ren Weide, Song Meilun, Huang Ruiqing. This standard replaces JY 194-1985. The standard JY 194 was first published in 1985. Leaf structure model1 ScopeThis standard specifies the naming, requirements, test methods, inspection rules and signs, packaging, transportation, and storage of leaf structure models. This standard applies to the leaf structure model for plant teaching in middle schools.2 Normative referencesThe following documents are essential for the application of this document. For dated references, only the dated version applies to this article Pieces. For undated references, the latest version (including all amendments) applies to this document. GB 21746-2008 General requirements for safety requirements of teaching instruments and equipment JY 0001-2003 General quality requirements for teaching instruments and equipment products JY 0002 Inspection rules for teaching instruments and equipment products JY 0026-1991 teaching instrument and teaching equipment product model naming method JY 0213-1994 Teaching mechanical, thermal instrument transportation, storage environmental conditions and test methods3 Naming3.1 Naming rules The model name of the product is JY 0026-1991. 3.2 Nomenclature The leaf structure model is named. SM ― YGZ ― P ― 400 Product length, 400mm Product feature code, profile Product name Pinyin prefix, "leaf structure" Product model classification code, biological model Model example. SM-YGZ-P-400 stands for biological model, leaf structure model, section, 400mm in length.4 Requirements4.1 Use environmental conditions Temperature. -10 ℃ ～ 40 ℃, relative humidity. not more than 90%. 4.2 Anatomy 4.2.1 General requirements 4.2.1.1 The product shall use broad bean leaves as a reference material to show the structure of dicotyledonous plant leaves. The model is 400mm ± 30mm long and 140mm ± 10mm wide. The height of the main vein of the leaf is 180mm ± 10mm. 4.2.1.2 Part of the leaves should be transected through the main vein, showing main veins, fine veins, upper and lower epidermis, fence tissue and sponge tissue on one side On one side, various sections should be used to show the connection between the main and lateral veins, as well as the longitudinal and lateral cross-sections of the main and lateral veins. 4.2.1.3 The morphology, structure and position of each cell shall be correct, and the color shall be different. 4.2.2 Specific requirements 4.2.2.1 Leaf veins. It should be located between the palisade tissue and the sponge tissue, and the connection between the main vein and the side veins should be appropriate. The xylem of the veins should be on the stem surface, The bast is on the dorsal stem surface, and there should be a layer in the main vein. 4.2.2.2 Epidermis. covering the upper and lower sides of the leaves, the epidermal cells are irregularly flat and covered with cuticle. 4.2.2.3 Fence organization. It is close to the upper epidermis and accounts for about 1/3 of the leaf thickness. The cells are cylindrical and arranged vertically and closely to the epidermis, Some cells were made longitudinal and transverse sections. The complete morphology of cells and the distribution, location, number and arrangement of chloroplasts on the cell profile should be correctly displayed point. Part of the longitudinal and transverse cells should show the nucleus. 4.2.2.4 Sponge tissue. it should show complete morphology and profile, with loosely arranged cells, large cell gaps, and a small amount of cells on the cell profile. Chloroplast. 4.2.2.5 The shape, location and distribution of stomata shall be correctly displayed. The cross section of the guard cell should show the nucleus, chloroplast and its inner Chamber under the square hole. 4.2.2.6 The following parts of the model shall be affixed with name or number tags. upper epidermis, lower epidermis, fence tissue, sponge tissue, main vein, lateral vein, wood Part, phloem, formation layer, stomata. 4.3 Materials and processes 4.3.1 The model should be made of rigid PVC material, and glass fiber reinforced plastic (FRP) or fragile and deformable materials should not be used. 4.3.2 The content of heavy metals in the coating of the model shall conform to GB 5.2.5.4 of GB 21746-2008. 4.3.3 The structures represented on the model should be accurate in position and modified naturally and correctly. Bonding and splicing should be firm. 4.3.4 The color of the structure of each part should be correct and clear, and the spraying transition should be natural and there should be no spillage. 4.3.5 The cut surface of the model shall be flat and not deformed. 4.3.6 The product shall also comply with JY 0001-2003 sections 5.2, 6.9, 6.12, 6.27, 7.4.3, 7.7 and 9.1 to 9.6. 4.4 Environmental test 4.4.1 The product shall be tested for temperature, humidity, and free drop in accordance with JY 0213-1994 Section 3.1, and shall be subjected to a drop test in an unpackaged state. 4.4.2 The drop height of the drop test in the non-packaging state is 1m. The drop surface shall be the largest surface of the model outline. After the test, it shall not be broken or cracked. If there is a stand, it should not be included.5 Test method5.1 Relevant dimensions Measured with a steel ruler with a division value of 1 mm. 5.2 Anatomy, appearance and workmanship Sensory test. 5.3 Environmental test 5.3.1 Temperature, humidity and free fall test According to JY 0213-1994 Section 4.1, 4.2, 4.6. 5.3.2 Drop test in unpacked state. Lay a wooden board with a thickness of 20mm ± 3mm on the cement floor, and keep the board rigidly connected to the cement floor touch. During the test, the model's falling surface is downward, and it will fall freely from a height of 1m. Once tested, it shall meet 4.4.2.6 Inspection rules6.1 Inspection classification The inspection of this product is divided into factory inspection, type inspection and quality supervision inspection. 6.2 Inspection items The inspection items and methods of factory inspection and type inspection are shown in Table 1. Table 1 Inspection items and methods of factory inspection and type inspection Item No. Inspection Item Standard Provisions Factory Inspection Type Inspection 1 General requirements 4.2.1 ● ● 2 Specific requirements 4.2.2 ● ● 3 Materials and processes 4.3 ● ● 4 Environmental test 4.4-● Note. “●” in the table means all inspection items, and “-” means no inspection items. 6.3 Sampling methods 6.3.1 The factory inspection shall be batched according to the natural batch of delivery, and the type inspection shall be batched according to the stock array. 6.3.2 During the factory inspection, all the inspection items shall be inspected first, and the sampling inspection items shall be inspected among the qualified products. 6.3.3 The samples for type inspection shall be taken from the products that passed the factory inspection. 6.3.4 The sampling methods for factory inspection and type inspection shall be in accordance with JY 0002. 6.4 Non-conformance determination 6.4.1 The judgment of sampling inspection shall be in accordance with JY 0002. 6.4.2 The failure criterion of a single sample shall be in accordance with JY 0002. 6.4.3 The factory inspection shall be determined according to the unqualified criterion of a single sample. 6.4.4 This standard 4.2 (except for slight defects in the color and spray transition or slight inaccuracy in the spray transition), 4.3.1, 4.3.2 and 4.3.5 Is the main performance indicator. 6.5 Review rules 6.5.1 Unqualified products can be submitted for inspection again after rework. 6.5.2 If the cause of the batch failure is a sampling inspection item, the item shall be changed to a full inspection during the re-inspection. 6.6 Quality supervision inspection Quality supervision and inspection shall be in accordance with JY 0002. 7 Marking, packaging, transportation, storage The rest are according to chapters 11 and 12 of JY 0001-2003. ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of JY/T 0194-2011_English be delivered?Answer: Upon your order, we will start to translate JY/T 0194-2011_English as soon as possible, and keep you informed of the progress. 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