丙环唑检测

GB/T 29035-2022 柔性石墨填料环试验方法

GB/T 41755-2022 酸性环境中管线钢管开裂敏感性试验 全环试样椭圆变形法

Determination of the susceptibility to cracking of line pipe in sour service—Full ring ovalization test method

GB/T 1149.8-2022 内燃机 活塞环 第8部分：矩形钢环

Internal combustion engines—Piston rings—Part 8: Rectangular rings made of steel

GB/T 20568-2022 金属材料 管环液压试验方法

Metallic materials—Tube ring hydraulic pressure test

GB/T 24162-2022 汽车用压缩天然气金属内胆纤维环缠绕气瓶定期检验与评定

Periodic inspection and evaluation of hoop wrapped fibre reinforced composite gas cylinders with metal liners of compressed natural gas for automotive vehicles

GB/T 41652-2022 刻蚀机用硅电极及硅环

Silicon electrode and silicon ring for plasma etching machine

GB/T 41242-2022 电子商务物流可循环包装管理规范

Management specification for e-commerce logistics recyclable packaging

GB/T 24160-2022 车用压缩天然气钢质内胆环向缠绕气瓶

Hoop-wrapped composite cylinders with steel liner for the on-board storage of compressed natural gas as a fuel for automotive vehicles

GB/T 23549-2021 丙环唑乳油

Propiconazole emulsifiable concentrates

GB/T 7363-2021 石油蜡中稠环芳烃试验法

Test method for polynuclear aromatics in petroleum wax

GB/T 41077-2021 建筑用绝热制品 六溴环十二烷的限值

Thermal insulating products for building applications—Limit value of hexabromocyclododecanes

GB/T 40955-2021 化妆品中八甲基环四硅氧烷（D4）和十甲基环五硅氧烷（D5）的测定 气相色谱法

Determination of octamethylcyclotetrasiloxane(D4) and decamethylcyclopentasiloxane(D5) in cosmetics—Gas chromatography

GB/T 40909-2021 纺织品 甲基环硅氧烷残留量的测定

Textiles—Determination of methylcyclosiloxane residues

GB/T 40323-2021 纺织染整助剂产品中八甲基环四硅氧烷（D4）、十甲基环五硅氧烷(D5)和十二甲基环六硅氧烷(D6)的测定

Determination of octamethylcyclotetrasiloxane(D4)， decamethylcyclopentasiloxane(D5) and dodecamethylcyclohexasiloxane(D6) in textile dyeing and finishing auxiliaries

GB/T 6577-2021 液压缸活塞用带支承环密封沟槽型式、尺寸和公差

Types, dimensions and tolerances of groove for seals with bearing rings for hydraulic cylinders piston

GB/T 15242.4-2021 液压缸活塞和活塞杆动密封装置尺寸系列 第4部分：支承环安装沟槽尺寸系列和公差

Dimensions series of rod and piston dynamic seals for hydraulic cylinders—Part 4:Dimensions and tolerances of bearing rings groove

GB/T 1149.6-2021 内燃机 活塞环 第6部分：铸铁刮环

Internal combustion engines—Piston rings—Part 6: Scraper rings made of cast iron

GB/T 39682-2020 精细陶瓷 高温和超高温弹性模量的测定 缺口环相对法

Fine ceramics—Determination of elastic modulus at high temperature or ultra-high temperature—Split ring relative method

GB/T 3452.4-2020 液压气动用O形橡胶密封圈 第4部分：抗挤压环（挡环）

O-rings for fluid power systems—Part 4:Anti-extrusion rings (back-up rings)

GB/T 3452.4-2020 液压气动用O形橡胶密封圈 第4部分：抗挤压环（挡环）

O-rings for fluid power systems—Part 4:Anti-extrusion rings (back-up rings)

GB/T 39385-2020 塑料管道系统 热塑性塑料管材 环柔性的测定

Plastics piping and ducting systems—Thermoplastics pipes—Determination of ring flexibility

GB/T 3452.4-2020 液压气动用O形橡胶密封圈 第4部分：抗挤压环（挡环）

O-rings for fluid power systems—Part 4:Anti-extrusion rings (back-up rings)

GB 1903.42-2020 食品安全国家标准　食品营养强化剂　肌醇(环己六醇)

GB/T 24749-2020 丙环唑

Propiconazole

GB/T 38415-2019 玩具中四溴双酚A和六溴环十二烷含量的测定 高效液相色谱-串联质谱法

Determination of tetrabromobisphenol A and hexabromocyclododecanes content in toys—High performance liquid chromatography-tandem mass spectrometry

GB/T 305-2019 滚动轴承 向心轴承止动槽和止动环 尺寸、产品几何技术规范（GPS）和公差值

Rolling bearings－Snap ring grooves and snap rings for radial bearings－Dimensions，geometrical product specifications (GPS) and tolerance values

GB/T 24801-2019 防焦剂 N-环己基硫代邻苯二甲酰亚胺（CTP）

Antiscorching agent—N-cyclohexylthiophthalimide (CTP)

GB 31660.1-2019 食品安全国家标准 水产品中大环内酯类药物残留量的测定 液相色谱-串联质谱法

本标准规定了水产品中竹桃霉素、红霉素、克拉霉素、阿奇霉素、吉他霉素、交沙霉素、螺旋霉素、替米考星、泰乐菌素 9种大环内酯类药物残留量检测的制样和液相色谱 -串联质谱测定方法。  本标准适用于水产品中鱼、虾、蟹、贝类等的可食组织中竹桃霉素、红霉素、克拉霉素、阿奇霉素、吉他霉素、交沙霉素、螺旋霉素、替米考星、泰乐菌素 9种大环内酯类药物残留量的检测。

National food safety standardDetermination of macrolides residues in fishery products by liquid chromatography-tandem mass spectrometric method

GB/T 25048-2019 金属材料 管 环拉伸试验方法

Metallic materials—Tube—Ring tensile test

GB/T 37455-2019 海洋平台液压环梁升降装置

Hydraulic ring-beam jacking system for offshore platform

GB/T 36993-2018 环槽铆钉连接副 技术条件

Ring groove rivet assemblies－Specifications

GB 2760-2014增补公告2018年第8号 关于(±)-1-环己基乙醇等食品添加剂新品种的公告(2018年 第8号)

GB/T 35951-2018 化妆品中螺旋霉素等8种大环内酯类抗生素的测定 液相色谱-串联质谱法

Determination of eight macrolide antibiotics such as spiramycin in cosmetics—LC-MS/MS

GB/T 35951-2018 化妆品中螺旋霉素等8种大环内酯类抗生素的测定 液相色谱-串联质谱法

Determination of eight macrolide antibiotics such as spiramycin in cosmetics—LC-MS/MS

GBZ/T 300.61-2017 工作场所空气有毒物质测定第 61 部分：丁烯、1,3-丁二烯和二聚环...

GB/T 15242.2-2017 液压缸活塞和活塞杆动密封装置尺寸系列 第2部分：支承环尺寸系列和公差

Dimensions series of rod and piston dynamic seals for hydraulic cylinders—Part 2：Dimensions and tolerances of bearing rings

GB 2760-2014增补公告2017年第8号 关于爱德万甜等6种食品添加剂新品种、食品添加剂环己基氨基磺酸钠(又名甜蜜素)等6种食品添加剂扩大用量和使用范围的公告

GB/T 34358-2017 自由锻件、辗轧环件热态尺寸测量

Dimension measurement of hot free forgings and rolled rings

GB/T 34392-2017 数控辗环机

NC ring rolling machine

GB/T 1149.15-2017 内燃机 活塞环 第15部分：薄型铸铁螺旋撑簧油环

Internal combustion engines—Piston rings—Part 15: Coil-spring-loaded oil control rings of narrow width made of cast iron