GBT15787-1995原木检验术语.pdf 6页

'中华人民共和国国家标准GB/T15787一1995原木检验术语Termsinloginspection1主肠内容与适用范围本标准规定了原木检验的常用术语和定义。本标准适用于针、阔叶树原木检验。2术语和定义2.1原木log符合标准尺寸的圆形木段。同义词圆材2.1.1双心(包括三心)材doubleheart(includingthreeheart)log在小头断面同时存在两个或三个年轮系统，两个或三个髓心和外围全部或局部环绕有共同年轮的原木。2.1.2大头连岔材buttwithbranchlog在大头断面同时存在两个年轮系统，两个髓心和外围环绕有共同年轮的原木。2.1.3双丫材doublebranchlog小头成两个分岔断面的原木。2.1.4劈裂材splitlog在生产过程中受外力影响造成纵向开裂或局部脱落的原木。2.1.5剖开材dissectedlog原木纵向锯剖成两块、横断面成近似半圆形的木材。同义词半圆材;对分材2.2原木检验loginspection对原木尺寸检量、材质评定、材种区分、树种识别、材积计算和号印加盖工作的总称。2.3商品材树种merchantabletimberspecies根据原木外貌特征相仿、构造和材性相似原则归类的商品材名称。2.3.1针叶树材coniferoustimber木材产自针叶树，裸子植物，不具有导管。同义词无孔材2.3.2阔叶树材broadleavestimber木材产自阔叶树，被子植物，通常具有导管。同义词有孔材2.4尺寸检量sizemeasurement对原木长度和直径的测定。国家技术监督局1995一12一08批准1996一07一01实施 GB/"r15787一19952.4.1标准尺寸standardsize原木标准所规定的尺寸。2.4.2尺寸分级sizeclass原木标准的分档尺寸。同义词尺寸系列2.4.3公差tolerance尺寸允许的变动里o同义词尺寸公差2.4.4偏差deviation某一尺寸减其标准尺寸的代数差。2.4.4.1正偏差positivedeviation最大尺寸减其标准尺寸为正值。2.4-4.2负偏差minusdeviation最小尺寸减其标准尺寸为负值。2.4.5断面中心cross-sectioncentre断面面积的重心。同义词面积形心;面积几何中心2.4.6直径diameter通过原木断面中心的实际尺寸。2.4.6.1短径shortdiameter通过原木断面中心的最短直径。2.4-6.2长径longdiameter通过短径中心与之垂直的直径。2.4-6.3最长径longestdiameter与短径垂直的最大直径。2.4.6.4平均直径averagediameter长径与短径的平均值。2.4-6.5检尺径diameterclass按标准规定，经进舍后的直径。同义词径级2.4.7原木正常部位normalpositionoflog中间细两头粗原木的检尺径最小处。2.4.8长度length原木两端断面之间最短处量得的实际尺寸。同义词材长;全材长2.4.8.1检尺长lengthclass按标准规定，经进舍后的长度。同义词长级2.4-8.2检尺长范围内lengthclassinside指标准尺寸(检尺长)范围内的尺寸。2.4-8.3检尺长范围外lenghtclassoutside指检尺长范围内到不足进级尺寸的多余长度。2.4.9让尺deductionsize Gs/T15787一1995按规定需要减少长级或径级的尺寸。2.5原木缺陷logdefect凡呈现在原木上能降低其质量，影响使用的各种缺点。2.6材质评定logqualityappraising对原木材质的鉴定。2.7材积volume原木的体积。2.7.1材积计算volumecalculating计算材积数量的多少。2.7.2材积表volumetable根据原木的不同检尺长、检尺径通过公式求出的材积而汇编成的用表。2,8号印加盖logmarking对原木的材种、长级、径级、等级和检验小组的标志以号印的形式打印在原木上的工作。2.9材种logassortment原木按照各种用途要求、规定所划分的品种名称。www.bzfxw.com Ge/T15787一1995附录A汉语拼音索引(参考件)B检尺长范围外··········”·········⋯⋯.2.4.8.3检尺径”·”·”·”·”·”·”·”·”····”·”·”⋯24.6.5.标准尺寸⋯⋯2.4.1KC阔叶树材·······””····”·”·”·“·“·····⋯⋯2.3.2材积······⋯⋯7P材积表···⋯⋯2材积计算⋯⋯2.7.1劈裂材材质评定⋯⋯偏差·:一;.:材种······⋯⋯:.:剖开材·””·“·“·~.“.·..·⋯⋯2.1.5长度······⋯⋯2.4.8平均直径“···“·“·“·····”·........一2.4.6.4长径······⋯⋯2.4.6.2R尺寸分级⋯⋯2.4.2尺寸检量··⋯2.4让尺”·”·”·“··““..·..·...一...2.4.9Dwww.bzfxw.comS大头连岔材二2.1.2商品材树种“·“·“·······”·”·”·“··““···⋯⋯22.l.3.3短径⋯⋯2.4.6.1双丫材····”·”·“·“·“····一2.l.l断面中心⋯⋯2.4.5双心(包括三心)材”·“···“二FY21负偏差··⋯⋯4.4.2原木“·····””·”·”·“一”·”·”·”·“⋯2.原木检验G原木缺陷公差··...⋯⋯2.4.3原木正常部位“··.·.................一2.4.7RZ号印加盖·····一2.8针叶树材“·····”··.·..·..·......⋯⋯2.3.1正偏差“·“·“·”·”·“·“·“·”·”·“·⋯⋯2.4.4.1J直径···”·”·”·“····”·”·”·“·”·”·”二2.4.6检尺长···⋯⋯2.4.8.1最长径“···”··““·“··.·..·..·一2.4.6.3检尺长范围内2.4.8.2g石 cB/T15787一1995附录B英文索引(参考件)Aaveragediameter2.4.6.4Bbroadleavestimber····················⋯⋯buttwithbranchlog:一:.:Cconiferoustimber.····.···.····..·.⋯⋯“·cross-sectioncentre:一:一:Ddeductionsl2e2.4.9deviationwww.bzfxw.com2.4.4diameter2.4.6diameterClass4.6.5dissectedlog····································“一2.1.5doublebranchlog······“·“·“··“··········⋯⋯.2.1.3doubleheart(includingthreeheart)log2.1.1Llength···”····“···········”···“·”··“”····“·····························“·“··········”·····⋯⋯2.4.8lengthclass····”·”·”·”·······“···.·.·”·”·”·”·“·“·“··“···“··”·”·”············””·2.4.8.1lengthclassinside·········””·”·”·“·“·“·“·······”·”·”·”·“·“·“·“·“·······”·”·“·“·“⋯⋯2.4.8.2lengthclassoutside·····························”·”·”·“···“····“·······”·”·”·”·“·“··········”一2.4.8.3log·····················“·····················“···················”····”·“·“·····”···”····”············⋯⋯2.1logassortment“············”···········”··”··········“········”····”·“··“”·.····”·············⋯⋯2.9logdefect”·············”·”·”·“·“·“····””·”·”·“·············””··““···“··””·”·”······”·”一2.5loginspection····”···················”·”·”···“·“···”·”·”···“·····”·”·”·“·“·····”·”·⋯⋯2.2logmarking·····””·················”·····“····”·”·”·“·····”·”·”··”··“···”·”·“····⋯⋯2.8logqualityappraising························”··“··“··””··”·”··“····.·..·..·..·..·..·..·..·.⋯⋯2.6longdiameter··························”···“·····”·”·”·“·“···”·”·”·“··⋯”⋯”·⋯.⋯2.4-6.2longestdiameter······”·························································⋯⋯“···············⋯⋯2.4.6.3M2.3merchantabletimberspecies4.2minusdeviation2.4.9‘ GB/T15787一1995Nnormalpositionoflog2.4.7Ppositivedeviation⋯2.4.4.1Sshortdiameter2.4.6.1sizeclass2.4.2sizemeasurement。”。2.4splitlogstandard5五ze:‘:.:Ttolerance2.4.3V︸2.7volume乙7.lvolumecalculatingvolumetable。............·......⋯www.bzfxw.com⋯。二。二。..⋯。二。二。·.⋯乙7.2附加说明:本标准由中华人民共和国林业部提出。本标准由中国木材标准化技术委员会归口。本标准由中国木材标准化技术委员会原木标准分技术委员会负责起草。本标准主要起草人谷永茂、冯慎杰、王景昌、陈志民、吴万荣、王铁力、周琼。97'